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Zhong J, Ge M, Gu T, Wang T, Liu Z, Bai P. Ultra-stable and highly-bright CsPbBr 3 perovskite/silica nanocomposites for miRNA detection based on digital single-nanoparticle counting. Talanta 2024; 273:125903. [PMID: 38503120 DOI: 10.1016/j.talanta.2024.125903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/21/2024] [Accepted: 03/09/2024] [Indexed: 03/21/2024]
Abstract
Single-nanoparticle counting (SNPC) based on fluorescent tag (FT) stands out for its capacity to achieve amplification-free and sensitive detection of biomarkers. The stability and luminescence of FT are important to the sensitivity and reliability of SPNC. In this work, we developed novel perovskite/silica nanocomposites by in-situ nanoconfined growth of CsPbBr3 nanocrystals inside mesoporous structure of silica nanoparticles. PbBr(OH) was formed in an alkaline-assisted reaction triggered by water on the surface of CsPbBr3 nanocrystals. The as-obtained nanocomposites, featuring dual protection from silica matrix and PbBr(OH), exhibited high absolute photoluminescence quantum yield (PLQY) of 86.5% and demonstrated outstanding PL stability confronting with water, heat, ultrasound and UV-irradiation, which is desired by SNPC-based biosensor. Thereafter, these nanocomposites were used to construct an operationally friendly SNPC assay for the amplification-free quantification of cancer-associated miRNA. Quantitative detection of miRNA could be accomplished by directly counting the number of nanocomposites using a flow cytometer in this assay. This strategy did not ask for multiple washing steps and demonstrated specific and sensitive detection of miRNA 21, which exhibited a dynamic range of 1-1000 pM and limit of detection of 79 amol. The employment of highly stable perovskite/silica nanocomposites improved the test reliability and stability of SNPC, revealing the vast potential of perovskites in biosensing.
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Affiliation(s)
- Jiajun Zhong
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China
| | - Minghao Ge
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China
| | - Tongxu Gu
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China.
| | - Tong Wang
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China; CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China
| | - Zhizhou Liu
- CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China
| | - Pengli Bai
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China; CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China.
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2
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Wang C, Yan L, Si J, Wang N, Li T, Hou X. Exceptional Stability against Water, UV Light, and Heat for CsPbBr 3@Pb-MOF Composites. SMALL METHODS 2024:e2400241. [PMID: 38644347 DOI: 10.1002/smtd.202400241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/20/2024] [Indexed: 04/23/2024]
Abstract
All-inorganic lead halide perovskite nanocrystals (NCs) have been widely applied in optoelectronic devices owing to their excellent photoluminescence (PL) properties. However, poor stability upon exposure to water, UV light or heat strongly limits their practical application. Herein, CsPbBr3@Pb-MOF composites with exceptional stability against water, UV light, and heat are synthesized by ultrasonic processing the precursors of lead-based MOF (Pb-MOF), oleylammonium bromide (OAmBr) and cesium oleate (Cs-OA) solutions at room temperature. Pb-MOF can not only provide the lead source for the in situ growth of CsPbBr3 NCs, but also the protective layer of perovskites NCs. The formed CsPbBr3@Pb-MOF composites show a considerable PL quantum yield (PLQY) of 67.8%, and can maintain 90% of the initial PL intensity when immersed in water for 2 months. In addition, the outstanding PL stability against UV light and heat is demonstrated with CsPbBr3 NCs synthesized by the conventional method as a comparison. Finally, a green (light-emitting diode) LED is fabricated using green-emitting CsPbBr3@Pb-MOF composites and exhibits excellent stability without packaging when immersed in water for 30 days. This study provides a practical approach to improve the stability in aqueous phase, which may pave the way for future applications for various optoelectronic devices.
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Affiliation(s)
- Chenxu Wang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, 710049, China
| | - Lihe Yan
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, 710049, China
| | - Jinhai Si
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, 710049, China
| | - Ning Wang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, 710049, China
| | - Ting Li
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, 710049, China
| | - Xun Hou
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Photonics Technology for Information, School of Electronic Science and Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, 710049, China
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3
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Yin J, Zhang J, Wu Z, Wu F, Li X, Dai J, Chen C. Origin of Water-Stable CsPbX 3 Quantum Dots Assisted by Zwitterionic Ligands and Sequential Strategies for Enhanced Luminescence Based on Crystal Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307042. [PMID: 37946682 DOI: 10.1002/smll.202307042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/28/2023] [Indexed: 11/12/2023]
Abstract
Water stability is a crucial issue always addressed for commercial practical application of perovskite quantum dots (QDs). Recent advances in ligand engineering for in situ synthesis of water-stable perovskite QDs have attracted growing interest. However, the exact mechanism remains unclear. Here, the function of 4-bromobutyric acid (BBA) and oleylamine (OLA) is systematically studied in water-stable CsPbX3 (X = Br and I) QDs and confirms that the zwitterionic ligands generated in situ by BBA and OLA are anchored on the QDs surface, thus preventing water from penetrating into the QDs. Cs4PbBr6 intermediate crystal found in the crystal structure evolution process of CsPbX3 QD further reveals a complete crystallization process: PbX2 + CsX + Br- → Cs4PbBr6 crystals + X-→ CsPbX3 QDs + Br-. Furthermore, it is found that the solvent coordination of the precursor solution has a significant effect on the crystallinity of Cs4PbBr6 intermediate crystal, while the Rb+ doping can effectively passivate the surface defects of CsPbX3 QDs, thereby jointly achieving photoluminescence quantum yields (PLQY) of 94.6% for CsPbBr3 QDs (88.2% for CsPbI3 QDs). This work provides new insights and guiding ideas for the green synthesis of high-quality and water-stable perovskite QDs.
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Affiliation(s)
- Junyang Yin
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jie Zhang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhenzi Wu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Feng Wu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiong Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jiangnan Dai
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Changqing Chen
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
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Il Jake Choi J, Ono LK, Cho H, Kim KJ, Kang HB, Qi Y, Park JY. Pathways of Water-Induced Lead-Halide Perovskite Surface Degradation: Insights from In Situ Atomic-Scale Analysis. ACS NANO 2023; 17:25679-25688. [PMID: 38054480 DOI: 10.1021/acsnano.3c10611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
While organic-inorganic hybrid perovskites are emerging as promising materials for next-generation photovoltaic applications, the origins and pathways of perovskite instability remain speculative. In particular, the degradation of perovskite surfaces by ambient water is a crucial subject for determining the long-term viability of perovskite-based solar cells. Here, we conducted surface characterization and atomic-scale analysis of the reaction mechanisms for methylammonium lead bromide (MA(CH3NH3)PbBr3) single crystals using ambient-pressure atomic force microscopy (AP-AFM) and near-ambient-pressure X-ray photoelectron spectroscopy (NAP-XPS) in environments ranging from ultrahigh vacuum to 0.01 mbar of water vapor. MAPbBr3 single crystals, grown by a solution process, were mechanically cleaved under UHV conditions to obtain an atomically clean surface. Consecutive topography and friction force measurements in low-pressure water (pwater ≈ 10-5 mbar) revealed the formation of degraded patches, one atomic layer deep, gradually increasing their coverage until the surface was entirely covered at a water exposure of 4.7 × 104 langmuir (L). At the perimeters of these degraded patches, a higher friction coefficient was observed, along with an interstitial step height, which we attribute to a structure equivalent to that of the MA-Br terminated surface. Combined with NAP-XPS analysis, our results demonstrate that water vapor induces the dissociation of surface methylammonium ligands, eventually resulting in the depletion of the surface MA and the full coverage of hydrocarbon species after exposure to 0.01 mbar of water vapor.
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Affiliation(s)
- Joong Il Jake Choi
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141, Republic of Korea
| | - Luis K Ono
- Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
| | - Hunyoung Cho
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141, Republic of Korea
| | - Ki-Jeong Kim
- Beamline Research Division, Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Hyung-Been Kang
- Engineering Section, Okinawa Institute of Science and Technology Graduate University (OIST) 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
| | - Yabing Qi
- Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141, Republic of Korea
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5
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Geng C, Jiang P, Zhang L, Xu S. Recent Advances and Perspectives of Metal Halide Perovskite Heteronanocrystals. J Phys Chem Lett 2023; 14:8648-8657. [PMID: 37729537 DOI: 10.1021/acs.jpclett.3c02143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Heteronanocrystals that combine multiple semiconductors into a nanoscale heterostructure possess excellent optical performance and flexibility in property engineering compared with their single-component counterparts. The successes in fabricating lead halide perovskite-based heteronanocrystals (PHNCs) have drastically improved the stability and tunability of the optical and electrical properties. However, the epitaxial growth of semiconductor materials on perovskite nanocrystals remains a fundamental challenge because of the mismatch in their surface structure and crystal growth kinetics. Here, we review recent progress in the development of PHNCs with emphasis on their synthesis methods and surface chemistry that led to new insights and reaction protocols for the design and fabrication of PHNCs. In addition, the optical features of different types of PHNCs and nanocomposites and their application perspectives are summarized. Finally, we conclude with a discussion of the remaining issues, challenges, and opportunities in epitaxial growth of Janus and core-shell structure PHNCs.
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Affiliation(s)
- Chong Geng
- School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, P. R. China
| | - Panpan Jiang
- School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, P. R. China
| | - Lulu Zhang
- School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, P. R. China
| | - Shu Xu
- School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, P. R. China
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Oh JW, Lee S, Han H, Allam O, Choi JI, Lee H, Jiang W, Jang J, Kim G, Mun S, Lee K, Kim Y, Park JW, Lee S, Jang SS, Park C. Dual-light emitting 3D encryption with printable fluorescent-phosphorescent metal-organic frameworks. LIGHT, SCIENCE & APPLICATIONS 2023; 12:226. [PMID: 37696793 PMCID: PMC10495391 DOI: 10.1038/s41377-023-01274-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 08/07/2023] [Accepted: 08/24/2023] [Indexed: 09/13/2023]
Abstract
Optical encryption technologies based on room-temperature light-emitting materials are of considerable interest. Herein, we present three-dimensional (3D) printable dual-light-emitting materials for high-performance optical pattern encryption. These are based on fluorescent perovskite nanocrystals (NCs) embedded in metal-organic frameworks (MOFs) designed for phosphorescent host-guest interactions. Notably, perovskite-containing MOFs emit a highly efficient blue phosphorescence, and perovskite NCs embedded in the MOFs emit characteristic green or red fluorescence under ultraviolet (UV) irradiation. Such dual-light-emitting MOFs with independent fluorescence and phosphorescence emissions are employed in pochoir pattern encryption, wherein actual information with transient phosphorescence is efficiently concealed behind fake information with fluorescence under UV exposure. Moreover, a 3D cubic skeleton is developed with the dual-light-emitting MOF powder dispersed in 3D-printable polymer filaments for 3D dual-pattern encryption. This article outlines a universal principle for developing MOF-based room-temperature multi-light-emitting materials and a strategy for multidimensional information encryption with enhanced capacity and security.
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Affiliation(s)
- Jin Woo Oh
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seokyeong Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyowon Han
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Omar Allam
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA, 30332-0405, USA
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA, 30332-0245, USA
| | - Ji Il Choi
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA, 30332-0245, USA
| | - Hyeokjung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Wei Jiang
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jihye Jang
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Gwanho Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seungsoo Mun
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Kyuho Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yeonji Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jong Woong Park
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seonju Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seung Soon Jang
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA, 30332-0245, USA.
| | - Cheolmin Park
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
- Spin Convergence Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
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Liang Y, Lu Q, Wu W, Xu Z, Lu H, He Z, Zhu Y, Yu Y, Han X, Pan C. A Universal Fabrication Strategy for High-Resolution Perovskite-Based Photodetector Arrays. SMALL METHODS 2023; 7:e2300339. [PMID: 37199230 DOI: 10.1002/smtd.202300339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/28/2023] [Indexed: 05/19/2023]
Abstract
Metal halide perovskite photodetector arrays have demonstrated great potential applications in the field of integrated systems, optical communications, and health monitoring. However, the fabrication of large-scale and high-resolution device is still challenging due to their incompatibility with the polar solvents. Here, a universal fabrication strategy that utilizes ultrathin encapsulation-assisted photolithography and etching to create high-resolution photodetectors array with vertical crossbar structure is reported. This approach yields a 48 × 48 photodetector array with a resolution of 317 ppi. The device shows good imaging capability with a high on/off ratio of 3.3 × 105 and long-term working stability over 12 h. Furthermore, this strategy can be applied to five different material systems, and is fully compatible with the existing photolithography and etching techniques, which are expected to have potential applications in the other high-density and solvent-sensitive devices array, including perovskite- or organic semiconductor-based memristor, light emitting diode displays, and transistors.
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Affiliation(s)
- Yegang Liang
- Center on Nanoenergy Research, School of Physical Science and Technology Guangxi University, Nanning, Guangxi, 530004, P. R. China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
| | - Qiuchun Lu
- Center on Nanoenergy Research, School of Physical Science and Technology Guangxi University, Nanning, Guangxi, 530004, P. R. China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
| | - Wenqiang Wu
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhangsheng Xu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hui Lu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zeping He
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yizhi Zhu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yang Yu
- Center on Nanoenergy Research, School of Physical Science and Technology Guangxi University, Nanning, Guangxi, 530004, P. R. China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
| | - Xun Han
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, School of Micro-Nano Electronics, Zhejiang University, Hangzhou, 311200, P. R. China
| | - Caofeng Pan
- Center on Nanoenergy Research, School of Physical Science and Technology Guangxi University, Nanning, Guangxi, 530004, P. R. China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Gong XK, Zhang XS, Li Q, Liu L, Zhang YM, Li C, Kong LN, Xu JP, Li L. Surface Reconstruction of Lead-Free Perovskite Cs 2Ag 0.6Na 0.4InCl 6:Bi by Hydroxylation with Blue-Light-Excited Performance. J Colloid Interface Sci 2023; 648:865-875. [PMID: 37327629 DOI: 10.1016/j.jcis.2023.06.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/18/2023]
Abstract
Molecular surface reconfiguration strategies have been instrumental to performance improvements of halide perovskite photovoltaic applications in recent years. However, research into the optical properties of the lead-free double perovskite Cs2AgInCl6 on the complex reconstructed surface is still lacking. Here, blue-light excitation in double perovskite Cs2Na0.4Ag0.6InCl6 with Bi doping has been successfully achieved by excess KBr coating and ethanol-driven structural reconstruction. Ethanol drives the formation of hydroxylated Cs2-yKyAg0.6Na0.4In0.8Bi0.2Cl6-yBry in the Cs2Ag0.6Na0.4In0.8Bi0.2Cl6@xKBr interface layer. The hydroxyl group adsorbed on the interstitial sites of the double perovskite structure induces a transfer of local space electrons to the [AgCl6] and [InCl6] octahedral regions, enabling them to be excited with blue light (467 nm). The passivation of KBr shell reduces the non-radiative transition probability of excitons. Blue-light-excited flexible photoluminescence devices based on hydroxylated Cs2Ag0.6Na0.4In0.8Bi0.2Cl6@16KBr are fabricated. The application of hydroxylated Cs2Ag0.6Na0.4In0.8Bi0.2Cl6@16KBr as down-shift layer in GaAs photovoltaic cell module can increase its power conversion efficiency by 3.34%. The surface reconstruction strategy provides a new way to optimize the performance of lead-free double perovskite.
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Affiliation(s)
- Xiao-Kai Gong
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Xiao-Song Zhang
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Qian Li
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Long Liu
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Yue-Ming Zhang
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Chao Li
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Li-Na Kong
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Jian-Ping Xu
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
| | - Lan Li
- School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education and Tianjin Key Laboratory for Photoelectric Materials and Devices, National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China
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9
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Wang X, He J, Chen X, Ma B, Zhu M. Metal halide perovskites for photocatalytic CO2 reduction: An overview and prospects. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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10
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Gao L, Cheng T, Gou L, Zhang Y, Liu Y, Yuan L, Zhang X, Wang Y, Meng F, Zhang J. Eliminating Nanocrystal Surface Light Loss and Ion Migration to Achieve Bright Mixed-Halide Blue Perovskite LEDs. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18125-18133. [PMID: 37000642 DOI: 10.1021/acsami.3c02437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Blue light-emittin g diodes (LEDs) are important components for perovskite electroluminescence applications, which still suffer from insufficient luminescence efficiency and poor stability. In Cl/Br mixed perovskite NCs, surficial defects cause severe light failure and ion migration, the in-depth mechanism of which is also not clear. To gain insights into these issues, we employ the ligand post-addition approach for mixed Cl/Br NCs by using octylammonium hydrobromide (OctBr) ligands, which effectively decrease surficial light loss and block ion migration pathways. The passivated CsPbCl1.5Br1.5 NCs exhibit exceptional blue emission with 95% PLQY, and the electroluminescence spectra of LEDs are located at the initial positions at the initial states. The treated NC blue devices show a negligible color shift as the voltage increases, which proves that electric-field-driven ion migration is drastically suppressed. In addition, OctBr-treated CsPbCl1.5Br1.5 and CsPbClBr2 NC LEDs show high external quantum efficiencies of 2.42 and 3.05% for emission peaks at 456 and 480 nm, respectively. Our work identified the nature of NC surface defects and provided a surficial modification approach to develop high-performance and color-stable blue mixed-halide perovskite LEDs.
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Affiliation(s)
- Long Gao
- College of Materials Science and Engineering, Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130012, China
| | - Tuo Cheng
- College of Materials Science and Engineering, Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130012, China
| | - Lijie Gou
- College of Materials Science and Engineering, Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130012, China
| | - Yilin Zhang
- College of Materials Science and Engineering, Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130012, China
| | - Yuping Liu
- College of Materials Science and Engineering, Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130012, China
| | - Long Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Xiaoyu Zhang
- College of Materials Science and Engineering, Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130012, China
| | - Yinghui Wang
- College of Physics, Jilin University, Changchun 130012, China
| | - Fanxu Meng
- Center of Characterization and Analysis, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Jiaqi Zhang
- College of Materials Science and Engineering, Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130012, China
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11
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Bhatia H, Martin C, Keshavarz M, Dovgaliuk I, Schrenker NJ, Ottesen M, Qiu W, Fron E, Bremholm M, Van de Vondel J, Bals S, Roeffaers MBJ, Hofkens J, Debroye E. Deciphering the Role of Water in Promoting the Optoelectronic Performance of Surface-Engineered Lead Halide Perovskite Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7294-7307. [PMID: 36705637 DOI: 10.1021/acsami.2c20605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Lead halide perovskites are promising candidates for high-performance light-emitting diodes (LEDs); however, their applicability is limited by their structural instability toward moisture. Although a deliberate addition of water to the precursor solution has recently been shown to improve the crystallinity and optical properties of perovskites, the corresponding thin films still do not exhibit a near-unity quantum yield. Herein, we report that the direct addition of a minute amount of water to post-treated formamidinium lead bromide (FAPbBr3) nanocrystals (NCs) substantially enhances the stability while achieving a 95% photoluminescence quantum yield in a NC thin film. We unveil the mechanism of how moisture assists in the formation of an additional NH4Br component. Alongside, we demonstrate the crucial role of moisture in assisting localized etching of the perovskite crystal, facilitating the partial incorporation of NH4+, which is key for improved performance under ambient conditions. Finally, as a proof-of-concept, the application of post-treated and water-treated perovskites is tested in LEDs, with the latter exhibiting a superior performance, offering opportunities toward commercial application in moisture-stable optoelectronics.
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Affiliation(s)
- Harshita Bhatia
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Cristina Martin
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
- Department of Physical Chemistry, Faculty of Pharmacy, University of Castilla-La Mancha, C/ José María Sánchez Ibañez s/n, 02071Albacete, Spain
| | - Masoumeh Keshavarz
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Iurii Dovgaliuk
- Institut des Matériaux Poreux de Paris, Ecole Normale Supérieure, ESPCI Paris, CNRS, PSL Université, 75005Paris, France
| | - Nadine J Schrenker
- Electron Microscopy for Materials Science (EMAT) and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, B-2020Wilrijk, Belgium
| | - Martin Ottesen
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000Aarhus C, Denmark
| | - Weiming Qiu
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Eduard Fron
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Martin Bremholm
- Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000Aarhus C, Denmark
| | - Joris Van de Vondel
- Quantum Solid-State Physics (QSP), Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200D, Leuven3001, Belgium
| | - Sara Bals
- Electron Microscopy for Materials Science (EMAT) and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, B-2020Wilrijk, Belgium
| | - Maarten B J Roeffaers
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, 3001Leuven, Belgium
| | - Johan Hofkens
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
| | - Elke Debroye
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001Leuven, Belgium
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12
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Wei T, Lian K, Tao J, Zhang H, Xu D, Han J, Fan C, Zhang Z, Bi W, Sun C. Mn-Doped Multiple Quantum Well Perovskites for Efficient Large-Area Luminescent Solar Concentrators. ACS APPLIED MATERIALS & INTERFACES 2022; 14:44572-44580. [PMID: 36125906 DOI: 10.1021/acsami.2c12834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Luminescent solar concentrators (LSCs) can be used as large-area sunlight collectors, which show great potential in the application of building-integrated photovoltaic areas. Achieving highly efficient LSCs requires the suppression of reabsorption losses while maintaining a high photoluminescence quantum yield (PLQY) and broad absorption. Perovskites as the superstar fluorophores have recently emerged as candidates for large-area LSCs. However, highly emissive perovskites with a large Stokes shift and broad absorption have not been obtained up to now. Here, we devised a facile synthetic route to obtain Mn-doped multiple quantum well (MQW) Br-based perovskites. The Br-based perovskite host ensures broad absorption. Efficient energy transfer from the exciton to the Mn dopant produces a large Stokes shift and high PLQY simultaneously. By further coating the perovskites with Al2O3, the stability and PLQY are greatly elevated. A large area of liquid LSC (40 cm × 40 cm × 0.5 cm) is fabricated, which possesses an internal quantum efficiency (ηint) of 47% and an optical conversion efficiency (ηopt) reaching 11 ± 1%, which shows the highest value for large-area LSCs.
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Affiliation(s)
- Tong Wei
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Kai Lian
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Jiaqi Tao
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Hu Zhang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Da Xu
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Jiachen Han
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Chao Fan
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Zihui Zhang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Wengang Bi
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Chun Sun
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
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Singh RK, Chen LH, Singh A, Jain N, Singh J, Lu CH. Progress of Backlight Devices: Emergence of Halide Perovskite Quantum Dots/Nanomaterials. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.863312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The technology behind the display is becoming ever more prevalent in our daily lives. It has many applications, including smartphones, tablets, desktop monitors, TVs, and augmented reality/virtual reality devices. The display technology has progressed drastically over the past decade, from the bulky cathode ray tube to the flat panel displays. In the flat panel displays, the liquid crystal display (LCD) and organic light-emitting diodes (OLEDs) are the two dominant technologies. Nevertheless, due to low stability and color tunability, OLEDs remain behind the LCDs. The LCD screen has a backlight, usually a white LED, which comprises a blue LED covered with a red and green enhanced layer (color-converting layers). Although InP/CdSe QDs attracted more attention due to their solution processability and better color gamut than the previous technologies, the complexity of their synthesis was still an obstacle to their commercialization. Later, the emergence of perovskite with highly intense and tunable PL emission, high color purity, and low-cost synthesis route attracted the attention of display researchers. Owing to the relatively higher performance of perovskite quantum dots (PQDs) than that of bulk (3D) perovskite in backlit display devices, these PQDs are being used for high color contrast and bright display devices. Furthermore, the color gamut for PQDs was observed as 140% of the NTSC standard, that is, close to that of the commercial OLED devices. In this review, we have discussed the progress of display technologies with a clear classification of the pros and cons of each technology. Also, the application of perovskite QD/nanomaterials in LCD backlit devices has been discussed, and the future direction of further improvement in their stability and performance has been listed.
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14
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Chi S, Yang S, Sun Y, Pang Z, Sun X, Fan L, Wang F, Liu X, Wei M, Yang J, Yang N, Yang L. Synthesis and Improved Photoluminescent Properties and Stability of Bromine‐Rich CsPbBr
3
Nanocrystals Via using CTAB as Additive. CRYSTAL RESEARCH AND TECHNOLOGY 2022. [DOI: 10.1002/crat.202200051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shaohua Chi
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Shuo Yang
- College of Science Changchun University Changchun 130022 P. R. China
| | - Yansen Sun
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Zhenyu Pang
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Xiaoxu Sun
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Lin Fan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Fengyou Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Xiaoyan Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Maobin Wei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Nannan Yang
- College of Mechanical Engineering Jilin Engineering Normal University Changchun 130052 P. R. China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
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15
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Huang H, Verhaeghe D, Weng B, Ghosh B, Zhang H, Hofkens J, Steele JA, Roeffaers MBJ. Metal Halide Perovskite Based Heterojunction Photocatalysts. Angew Chem Int Ed Engl 2022; 61:e202203261. [PMID: 35347831 DOI: 10.1002/anie.202203261] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Indexed: 11/12/2022]
Abstract
With fascinating photophysical properties and a strong potential to utilize solar energy, metal halide perovskites (MHPs) have become a prominent feature within photocatalysis research. However, the effectiveness of single MHP photocatalysts is relatively poor. The introduction of a second component to form a heterojunction represents a well-established route to accelerate carrier migration and boost reaction rates, thus increasing the photoactivity. Recently, there have been several scientific advances related to the design of MHP-based heterojunction photocatalysts, including Schottky, type II, and Z-scheme heterojunctions. In this Review, we systematically discuss and critically appraise recent developments in MHP-based heterojunction photocatalysis. In addition, the techniques for identifying the type of active heterojunctions are evaluated and we conclude by briefly outlining the ongoing challenges and future directions for promising photocatalysts based on MHP heterojunctions.
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Affiliation(s)
- Haowei Huang
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Davy Verhaeghe
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Bo Weng
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Biplab Ghosh
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Hongwen Zhang
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Johan Hofkens
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Heverlee, Belgium
| | - Julian A Steele
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Maarten B J Roeffaers
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
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16
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Stable EMT type zeolite/CsPbBr3 perovskite quantum dot nanocomposites for highly sensitive humidity sensors. J Colloid Interface Sci 2022; 616:921-928. [PMID: 35259722 DOI: 10.1016/j.jcis.2022.02.079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/12/2022] [Accepted: 02/19/2022] [Indexed: 11/22/2022]
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17
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Chang T, Wei Q, Wang Z, Gao Y, Lian B, Zhu X, Cao S, Zhao J, Zou B, Zeng R. Phase-Selective Solution Synthesis of Cd-Based Perovskite Derivatives and Their Structure/Emission Modulation. J Phys Chem Lett 2022; 13:3682-3690. [PMID: 35438490 DOI: 10.1021/acs.jpclett.2c00863] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The rich phase structures of perovskite derivatives have attracted extensive attention and can be applied in the fields of optoelectronics due to their high emission efficiency and tunable emission. Herein, we explored a phase-selective solution synthetic route to obtain different Cd-based perovskite derivatives. First, the pristine tetragonal Cs7Cd3Br13 was obtained by a solvothermal method, and its photoluminescence quantum yield (PLQY) was boosted from 8.28% to 57.62% after appropriate Sb3+ doping. Furthermore, halogen substitution was adopted to modify Sb:Cs7Cd3Br13 and produced a series of Cd-based perovskite derivatives with different crystal structures and tunable emission from cyan to orange (517-625 nm). The mechanisms behind such experimental phenomena were further investigated and discussed on the basis of material characterization and theoretical computation. This study presented an effective strategy to synthesize bright Cd-based perovskite derivatives with different structures and modulated emission, and it also provided insights to understand the structure/emission modulation via halogen substitution.
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Affiliation(s)
- Tong Chang
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Qilin Wei
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Ziyi Wang
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Yilin Gao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Bo Lian
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Xiaoshan Zhu
- Department of Electrical and Biomedical Engineering, University of Nevada Reno, Reno, Nevada 89557, United States
| | - Sheng Cao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Jialong Zhao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Bingsuo Zou
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Ruosheng Zeng
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
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18
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Cheng R, Liang ZB, Shen H, Guo J, Wang CF, Chen S. In-situ synthesis of stable perovskite quantum dots in core-shell nanofibers via microfluidic electrospinning. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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19
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Solution processed and highly efficient UV-photodetector based on CsPbBr3 perovskite-polymer composite film. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113764] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Huang H, Verhaeghe D, Weng B, Ghosh B, Zhang H, Hofkens J, Steele JA, Roeffaers MB. Metal Halide Perovskite‐Based Heterojunction Photocatalysts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Haowei Huang
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems 3001 Leuven BELGIUM
| | - Davy Verhaeghe
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
| | - Bo Weng
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems 3000 Leuven BELGIUM
| | - Bipab Ghosh
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
| | - Hongwen Zhang
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
| | - Johan Hofkens
- KU Leuven: Katholieke Universiteit Leuven Department of Chemistry BELGIUM
| | - Julian A. Steele
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
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21
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Lyu B, Bao X, Gao D, Guo X, Lu X, Ma J. Highly Stable CsSnCl 3 Quantum Dots Grown in an Ionic Liquid/Gelatin Composite System through an In Situ Method. Inorg Chem 2022; 61:5672-5682. [PMID: 35333522 DOI: 10.1021/acs.inorgchem.2c00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lead halide perovskite quantum dots (QDs) are controversial due to their high lead content. Tin, a low-toxic element with an outer electronic structure similar to that of Pb, becomes a strong candidate for preparing lead-free perovskite QDs. However, tin-based perovskite QDs, especially CsSnCl3 QDs, exhibit poor environmental stability. Herein, we proposed an strategy for highly stable CsSnCl3 QDs using an ionic liquid as a solvent and antioxidant and gelatin as a multidentate ligand and coating material through an in situ method ([AMIM]Cl/gelatin-QDs). The results showed that the abundant active groups of gelatin served as the nucleation growth center for QDs and further passivated QDs. At the same time, the long molecular chain of gelatin can coat the QDs to isolate the environment and fully protect QDs, and the size of QDs grown in gelatin was 5-10 nm. In addition, the oxidation resistance of ionic liquids and the halogen-rich environment formed also played an important role. Even if [AMIM]Cl/gelatin-QDs were treated with water and ultraviolet light simultaneously, its remaining fluorescence intensity was still above 60% within 72 h. Meaningfully, QDs endowed the composite system mildew resistance, which can resist the erosion of gelatin by molds, thereby realizing the system's long-term protection toward CsSnCl3 QDs.
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Affiliation(s)
- Bin Lyu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.,National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi University of Science & Technology, Xi'an 710021, China.,Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Xin Bao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.,National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi University of Science & Technology, Xi'an 710021, China.,Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Dangge Gao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.,National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi University of Science & Technology, Xi'an 710021, China.,Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Xu Guo
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.,National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi University of Science & Technology, Xi'an 710021, China.,Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Xiangrui Lu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.,National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi University of Science & Technology, Xi'an 710021, China.,Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Jianzhong Ma
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.,National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi University of Science & Technology, Xi'an 710021, China.,Xi'an Key Laboratory of Green Chemicals and Functional Materials Shaanxi University of Science & Technology, Xi'an 710021, China
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22
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Shu Y, Wang Y, Guan J, Ji Z, Xu Q, Hu X. Amphiphilic Polymer Ligand-Assisted Synthesis of Highly Luminescent and Stable Perovskite Nanocrystals for Sweat Fluorescent Sensing. Anal Chem 2022; 94:5415-5424. [PMID: 35325531 DOI: 10.1021/acs.analchem.2c00235] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The weak interfacial binding affinities of the inorganic perovskite core with ligands and high density of surface defect states induce the facile detachment of surface ligands from nanocrystals (NCs), resulting in their poor colloidal stability and fluorescence in aqueous. In this work, a powerful ligand engineering strategy was proposed for eliminating the surface defects and aggregation of the NCs. Using an amphiphilic polymer octylamine-modified polyacrylic acid (OPA) as a capping ligand, the as-synthesized CsPbBr3 NCs retain high photoluminescence intensity and stability by the modified ligand-assisted reprecipitation method. The increase in the fluorescence lifetime and NC size could also be observed, and how the NC particle size influences fluorescence lifetime was further studied. In addition, the water stability, photostability, and thermal stability were significantly improved, and the fluorescence of NCs can maintain 80.13% of the original value in water for 15 d. We further validated that the strong binding affinity of OPA and oleylamine ligands with CsPbBr3 NCs leads to a reduction in surface trap states, and a large amount of carboxyl groups of the OPA made the NCs preserve good water solubility. In addition, the OPA has the ability of adjusting the particle size of NCs. Furthermore, a wavelength-shifted colorimetric sensor based on these NCs was constructed for detection of Cl- in sweat, which enables the rapid and visual detection of Cl- with high accuracy and stability. Overall, these CsPbBr3 NCs synthesized by the ligand engineering strategy validated their wide applications in biomedical sensing fields.
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Affiliation(s)
- Yun Shu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R.China
| | - Yan Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R.China
| | - Jie Guan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R.China
| | - Zhengping Ji
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R.China
| | - Qin Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R.China
| | - Xiaoya Hu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R.China
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23
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Kim DW, Hyun C, Shin TJ, Jeong U. Precise Tuning of Multiple Perovskite Photoluminescence by Volume-Controlled Printing of Perovskite Precursor Solution on Cellulose Paper. ACS NANO 2022; 16:2521-2534. [PMID: 35044152 DOI: 10.1021/acsnano.1c09140] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Metal halide perovskite nanocrystals (PeNCs) with a controlled quantum size effect have received intense interest for potential applications in optoelectronics and photonics. Here, we present a simple and innovative strategy to precisely tune the photoluminescence color of PeNCs by simply printing perovskite precursor solutions on cellulose papers. Depending on the volume of the printed precursor solutions, the PeNCs are autonomously grown into three discrete sizes, and their relative size population is controlled; accordingly, not only the number of multiple PL peaks but also their relative intensities can be precisely tuned. This autonomous size control is obtained through the efflorescence, which is advection of salt ions toward the surface of a porous medium during solvent evaporation and also through the confined crystal growth in the hierarchical structure of cellulose fibers. The infiltrated PeNCs are environmentally stable against moisture (for 3 months in air at 70% relative humidity) and strong light exposure by hydrophobic surface treatment. This study also demonstrates invisible encryption and highly secured unclonable anticounterfeiting patterns on deformable cellulose substrates and banknotes.
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Affiliation(s)
- Dong Wook Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, 37673 Pohang, Gyeongbuk, Republic of Korea
| | - Chohee Hyun
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, 44919 Ulsan, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, 44919 Ulsan, Republic of Korea
- Gradute School of Semiconductor Material and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, 44919 Ulsan, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, 37673 Pohang, Gyeongbuk, Republic of Korea
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24
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Zhao W, Wang Y, Liu K, Zhou R, Shan C. Multicolor biomass based carbon nanodots for bacterial imaging. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Chang T, Wang H, Gao Y, Cao S, Zhao J, Zou B, Zeng R. Component Engineering to Tailor the Structure and Optical Properties of Sb-Doped Indium-Based Halides. Inorg Chem 2022; 61:1486-1494. [PMID: 34982544 DOI: 10.1021/acs.inorgchem.1c03176] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Controlling the structure of halide perovskites through component engineering, and thus revealing the changes in luminescence properties caused by the conversion of crystal structure, is of great significance. Herein, we report a controllable synthetic strategy of three-dimensional (3D) Cs2KInCl6 and zero-dimensional (0D) (Cs/K)2InCl5(H2O) halide perovskites by changing the Cs/K feed ratio. 3D Cs2KInCl6 double perovskites are obtained at the Cs/K feed ratio of 1:1, while 0D (Cs/K)2InCl5(H2O) perovskites are formed at the Cs/K feed ratio of 2:1. Further, a reversible crystal structure transformation between 3D Cs2KInCl6 double perovskites and 0D (Cs/K)2InCl5(H2O) perovskites can be achieved by subsequent addition of metal-salt precursors. In addition, the emission efficiency of two perovskite structures can be greatly boosted by breaking the forbidden transition through Sb doping, and as a result, a novel green/yellow reversible emission switch is generated. Meanwhile, the relationship between perovskite structure and luminescence mechanism has been systematically revealed. These environmentally stable halide perovskites have great potential to be applied in optoelectronic devices.
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Affiliation(s)
- Tong Chang
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Haiyan Wang
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Yilin Gao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Sheng Cao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Jialong Zhao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Bingsuo Zou
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Ruosheng Zeng
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
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26
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Costa WC, Salla CAM, Ely F, Bechtold IH. Highly emissive MAPbBr 3perovskite QDs by ligand-assisted reprecipitation: the antisolvent effect. NANOTECHNOLOGY 2021; 33:095702. [PMID: 34808612 DOI: 10.1088/1361-6528/ac3bf1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/22/2021] [Indexed: 05/20/2023]
Abstract
A systematic study of the synthetic procedure to improve quantum efficiency of luminescent hybrid perovskite QDs through ligand-assisted precipitation method is presented. Particularly, the influence of the dielectric constant and dipole moment of the antisolvent on the reaction time and the photophysical properties of the QDs is highlighted. After evaluating the influence of antisolvents and optimizing experimental parameters such as reaction time and Pb excess of the precursor, colloidal crystalline MAPbBr3QDs with exceptionally high absolute quantum yield up to 97.7% in solution and 69.1% in solid film were obtained. Finally, MAPbBr3QDs precipitated from anisole were processed like UV-curable nanocomposite as efficient down conversion layer resulting in very narrow green emission light-emitting diode.
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Affiliation(s)
- Wallison C Costa
- Physics Department, Universidade Federal de Santa Catarina, Brazil
| | | | - Fernando Ely
- Center for Information Technology Renato Archer-CTI, Brazil
| | - Ivan H Bechtold
- Physics Department, Universidade Federal de Santa Catarina, Brazil
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27
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Li Y, Liu Q, Liu X, Feng J, He L, Li H, Li C, Zhang H. Simultaneous Enhancement of Photoluminescence and Stability of CsPbCl 3 Perovskite Enabled by Titanium Ion Dopant. J Phys Chem Lett 2021; 12:10746-10752. [PMID: 34714073 DOI: 10.1021/acs.jpclett.1c03057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The application of CsPbCl3 perovskite is limited by the low photoluminescence quantum yield (PLQY), weak luminescence, and unpromising stability. Doping impurity ions has been considered as an effective strategy to tune the optoelectronic performances of perovskite. In this work, heterovalent Ti3+ ions are successfully doped into CsPbCl3 nanocrystals. It is found that Ti3+ ion doping could effectively improve the photoluminescence (PL) performance of CsPbCl3 nanocrystals. Density functional theory (DFT) calculations reveal that Ti3+ ions could introduce more band-edge states around the conduction band minimum of CsPbCl3, which is conducive to release electrons into conduction band. Furthermore, Ti3+ ion doping could inhibit the Cl vacancy concentration in CsPbCl3 and prevent the in-gap state caused by Cl vacancy. Notably, the stability of CsPbCl3 perovskite is greatly improved through Ti3+ ion doping. This work provides a new perspective for improving the optoelectronic properties of all-inorganic perovskites through heterovalent metal ion doping.
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Affiliation(s)
- Yao Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Qingshi Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Xiaojuan Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Jing Feng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Lingjun He
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Huwei Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Chengyu Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- The GBA National Institute for Nanotechnology Innovation, Guangzhou 510700, China
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28
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Shu Y, Sun L, Wang Y, Jin D, Xu Q, Hu X. Polymer surface ligand and silica coating induced highly stable perovskite nanocrystals with enhanced aqueous fluorescence for efficient Hg 2+ and glutathione detection. Analyst 2021; 146:6798-6807. [PMID: 34668893 DOI: 10.1039/d1an01485d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The poor stability and aqueous-quenching of fluorescence of perovskite nanocrystals (NCs) hinder their application in bio-detection and bio-imaging. Herein, through the synergistic effects of polymer surface ligand and silica encapsulation, highly stable and enhanced aqueous fluorescent CsPbBr3-mPEG@SiO2 NCs were synthesized and used as a novel "on-off-on" fluorescent probe for highly sensitive and selective detection of mercury ions (Hg2+) and glutathione (GSH) in aqueous solutions. The effects of the methoxypolyethylene glycol amine (mPEG-NH2) ligand and silica encapsulation on the stability and aqueous fluorescence of the CsPbBr3 NCs were studied. It indicated that the aqueous fluorescence of perovskite NCs was increased by 2.59 times. The water stability was also greatly improved, with the NCs maintaining 73% of their original fluorescence after storage for 30 days in water. X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR) analyses further demonstrated that the NCs were successfully passivated by mPEG-NH2 and silica. The fluorescence of the CsPbBr3-mPEG@SiO2 nanocrystals was effectively quenched by Hg2+ which is attributed to the electron transfer process between NCs and Hg2+. Then, through the interaction between Hg2+ and GSH, the restoration of fluorescence for CsPbBr3-mPEG@SiO2 was realized. The "on-off-on" fluorescent probe can be used for the detection of Hg2+ and GSH with a low detection limit of 0.08 nM and 0.19 μM, respectively. It also shows a fast response time and high accuracy for practical sample detection. The simple and sensitive fluorescent probe of CsPbBr3-mPEG@SiO2 shows great potential in environmental and biological sensing.
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Affiliation(s)
- Yun Shu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Linyan Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Yan Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Dangqin Jin
- Department of Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, P.R. China
| | - Qin Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Xiaoya Hu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
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29
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Dutt VGV, Akhil S, Mishra N. Enhancement of photoluminescence and the stability of CsPbX 3 (X = Cl, Br, and I) perovskite nanocrystals with phthalimide passivation. NANOSCALE 2021; 13:14442-14449. [PMID: 34473818 DOI: 10.1039/d1nr03916d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cesium lead halide perovskite nanocrystals (CsPbX3 NCs) have been the flourishing area of research in the field of photovoltaic and optoelectronic applications because of their excellent optical and electronic properties. However, they suffer from low stability and deterioration of photoluminescence (PL) properties post-synthesis. In this work, we demonstrate that incorporating an additional ligand can further enhance the optical properties and stability of NCs. Here, we introduced phthalimide as a new surface passivation ligand into the oleic acid/oleylamine system in situ to get near-unity photoluminescence quantum yield (PLQY) of CsPbBr3 and CsPbI3 perovskite NCs. Phthalimide passivation dramatically improves the stability of CsPbCl3, CsPbBr3, and CsPbI3 NCs under ambient light and UV light. The PL intensity was recorded for one year, which showed a dramatic improvement for CsPbBr3 NCs. Nearly 11% of PL can be retained even after one year with phthalimide passivation. CsPbCl3 NCs exhibit 3 times higher PL with phthalimide and retain 12% PL intensity even after two months, while PL of as-synthesized NCs completely diminishes. Under continuous UV light illumination, the PL intensity of phthalimide passivated NCs is well preserved, while the as-synthesized NCs exhibit negligible PL emission in 2 days. About 40% and 25% of initial PL is preserved for CsPbBr3 and CsPbCl3 NCs in the presence of phthalimide. CsPbI3 NCs with phthalimide exhibit PL even after 2 days, while PL for as-synthesized NCs rapidly declined in the first 10 h. The presence of phthalimide in CsPbI3 NCs could maintain stability even after a week, while the as-synthesized NCs underwent a transition to the non-luminescent phase within 4 days. Furthermore, blue, green, yellow, and red-emitting diodes using CsPbCl1.5Br1.5, CsPbBr3, CsPbBr1.5I1.5, CsPbI3 NCs, respectively, are fabricated by drop-casting NCs onto blue LED lights, which show great potential in the field of display and lighting technologies.
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Affiliation(s)
- V G Vasavi Dutt
- Department of Chemistry, SRM University-AP, Amaravati, Neerukonda, Guntur(Dt), Andhra Pradesh, 522240, India.
| | - Syed Akhil
- Department of Chemistry, SRM University-AP, Amaravati, Neerukonda, Guntur(Dt), Andhra Pradesh, 522240, India.
| | - Nimai Mishra
- Department of Chemistry, SRM University-AP, Amaravati, Neerukonda, Guntur(Dt), Andhra Pradesh, 522240, India.
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30
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Sun J, Li N, Dong L, Niu X, Zhao M, Xu Z, Zhou H, Shan C, Pan C. Interfacial-engineering enhanced performance and stability of ZnO nanowire-based perovskite solar cells. NANOTECHNOLOGY 2021; 32:475204. [PMID: 33445158 DOI: 10.1088/1361-6528/abdbeb] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Perovskite solar cells (PSCs) have attracted extensive attention due to their convenient fabrication and excellent photoelectric characteristics. The highest power conversion efficiency (PCE) of over 25% has been realized. However, ZnO as electron transport layer based PSCs exhibit inferior PCE and stability because of the mismatched energy-band and undesirable interfacial recombination. Here, we introduce a thin layer of SnO2nanocrystals to construct an interfacial engineering with gradient energy band and interfacial passivation via a facile wet chemical process at a low temperature. The best PCE obtained in this study reaches 18.36%, and the stability is substantially improved and maintains a PCE of almost 100% over 500 h. The low-temperature fabrication process facilitates the future application of ZnO/SnO2-based PSCs in flexible and stretchable electronics.
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Affiliation(s)
- Junlu Sun
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, 450001, People's Republic of China
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, People's Republic of China
| | - Nengxu Li
- Department of Materials Science and Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Lin Dong
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, 450001, People's Republic of China
| | - Xiuxiu Niu
- Department of Materials Science and Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Mengqi Zhao
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, People's Republic of China
| | - Ziqi Xu
- Department of Materials Science and Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Huanping Zhou
- Department of Materials Science and Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Chongxin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Microelectronics, Zhengzhou University, 450001, People's Republic of China
| | - Caofeng Pan
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, People's Republic of China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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31
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Sun Y, Zhang H, Zhu K, Ye W, She L, Gao X, Ji W, Zeng Q. Research on the influence of polar solvents on CsPbBr 3 perovskite QDs. RSC Adv 2021; 11:27333-27337. [PMID: 35480687 PMCID: PMC9037818 DOI: 10.1039/d1ra04485k] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/28/2021] [Indexed: 11/21/2022] Open
Abstract
All-inorganic CsPbX3 (X = Cl, Br, I) perovskite quantum dots (QDs) have become a kind of optoelectronic material with huge application prospects due to their excellent physical and optical properties. However, their poor structural stability to the external environment, especially polar solvents, seriously hinder further development in practical applications. Considering whether polar solvents have the same effects on perovskites QDs, few studies have been investigated in this area presently. In order to find out the effect of different polar solvents on all-inorganic perovskite QDs, in this work, we select 12 kinds of polar solvents of methanol, ethanol, isopropanol, 1-butanol, 1-pentanol, 1-octanol, N,N-dimethylformamide (DMF), tetramethylethylenediamine (TMEDA), ethyl acetate, n-butyl acetate, dibutyl phthalate and acetone for a specific analysis. The characterization of their morphology, optical and physicochemical properties shows that different polar solvents have different effects on all-inorganic perovskite QDs, but their effects are regular. Polar solvents act on the ligands preferentially, and the effects can be divided into: reducing the concentration of ligands; substituting ligands partially; completely destroying the surface ligands; polar solvents with the same functional group, as the polarity of the solvent increases, the impact on all-inorganic perovskite QDs is greater. We believe that this discovery has important implications for improving the stability of all-inorganic perovskite QDs.
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Affiliation(s)
- Yifang Sun
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Dong_Nanhu Road 3888 Changchun 130033 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Huidan Zhang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Dong_Nanhu Road 3888 Changchun 130033 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Kai Zhu
- Innovation Practice Center, Changchun University of Chinese Medicine Changchun 130017 P. R. China
| | - Weiguang Ye
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Dong_Nanhu Road 3888 Changchun 130033 P. R. China
| | - Lushuang She
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Dong_Nanhu Road 3888 Changchun 130033 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Ximing Gao
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Dong_Nanhu Road 3888 Changchun 130033 P. R. China .,University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Wenyu Ji
- Key Lab of Physics and Technology for Advanced Batteries (Ministry of Education), Department of Physics, Jilin University Changchun 130012 P. R. China
| | - Qinghui Zeng
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Dong_Nanhu Road 3888 Changchun 130033 P. R. China
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32
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Getachew G, Huang WW, Chou TH, Rasal AS, Chang JY. Brightly luminescent (NH 4) xCs 1-xPbBr 3 quantum dots for in vitro imaging and efficient photothermal ablation therapy. J Colloid Interface Sci 2021; 605:500-512. [PMID: 34343730 DOI: 10.1016/j.jcis.2021.07.116] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/01/2021] [Accepted: 07/21/2021] [Indexed: 12/26/2022]
Abstract
Herein, we report for the first time a facile strategy for the highly efficient (NH4)xCs1-xPbBr3 quantum dots (QDs). By modulating the amount of ammonium, (NH4)xCs1-xPbBr3 QDs with different photoluminescence (PL) quantum yields (QY) were synthesized. The results of X-ray diffraction and X-ray photoelectron spectroscopy showed that the crystal structure of (NH4)xCs1-xPbBr3 was altered by incorporation of NH4+ cations into the CsPbBr3 lattice. The (NH4)xCs1-xPbBr3 QDs showed enhanced PL QY, higher photostability, and long-term storage stability compared to CsPbBr3 QDs. Furthermore, (NH4)xCs1-xPbBr3 QDs could be conjugated with a photothermal dye (IR780) via a one-pot reaction using poly(styrene-co-maleic anhydride) and IR780-MPTS. To the best of our knowledge, the present work is the first attempt integrating perovskite QDs and phototherapeutic molecules into one system (abbreviated as PQD-IR780), demonstrating good water dispersibility and high photothermal conversion efficiency of 57.85%. In vitro experiments performed to examine subcellular uptake showed high fluorescence brightness was observed in HeLa, B16F1, and HepG2 cancer cells cultured with PQD-IR780. The results indicate that the internalization mechanism for uptaking of PQD-IR780 inside HeLa cells is energy-dependent and caveolin-mediated endocytosis. The in vitro cell viability assays and photothermal therapy revealed that PQD-IR780 showed good biocompatibility and can induce hyperthermia upon laser irradiation.
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Affiliation(s)
- Girum Getachew
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, Republic of China
| | - Wan-Wen Huang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, Republic of China
| | - Tzung-Han Chou
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan, Republic of China
| | - Akash S Rasal
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, Republic of China
| | - Jia-Yaw Chang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, Republic of China; Taiwan Building Technology Center, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, Republic of China.
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33
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Song L, Huang L, Liu Y, Guo X, Geng C, Xu S, Xia Y, Zhang Y, Luan N, Hu Y. Efficient Thermally Evaporated Perovskite Light-Emitting Devices via a Bilateral Interface Engineering Strategy. J Phys Chem Lett 2021; 12:6165-6173. [PMID: 34184904 DOI: 10.1021/acs.jpclett.1c01592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Physical vapor deposition has emerged as a promising strategy for efficient and stable all-inorganic perovskite light-emitting devices (PeLEDs). However, the thermally evaporated PeLEDs still suffer from unsatisfactory optoelectrical performance because of the massive nonradiative defects. Herein, we demonstrate an efficient bilateral interfacial defect-passivation strategy toward high-performance PeLEDs with a thermally deposited CsPbBr3 emissive layer (EML). Specifically, the nonradiative defects from the bulk as well as the EML/charge transport layer (CTL) interface are significantly suppressed by implementing the 3-amino-1-propanol (3AP)-modified PEDOT:PSS and introducing ammonium salts, respectively. Simultaneously, both the 3AP induced less-conductive Cs4PbBr6 and ammonium salts can balance the charge injection into the EML effectively. As a result, we achieved efficient PeLEDs based on thermally evaporated CsPbBr3 with a luminance of 15745 cd/m2, current efficiency of 32 cd/A, external quantum efficiency of 8.86%, and lifetime of 3.74 h. The strategy proposed here may shed light on the development of highly efficient thermally evaporated PeLEDs.
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Affiliation(s)
- Li Song
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Lixin Huang
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Yuan Liu
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Xiaoyang Guo
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Chong Geng
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Shu Xu
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Yuanqin Xia
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Yuan Zhang
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Nannan Luan
- Tianjin Key Laboratory of Electronic Materials and Devices, Hebei Key Laboratory of Advanced Laser Technology and Equipment, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P.R. China
| | - Yongsheng Hu
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
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Lu Y, Li P, Xie W, Duan Y, Xu S, Zhang J. Pure green emission self-crystallization CsPbBr 3 quantum dot glass with Ag + doping for stable light-emitting devices. OPTICS LETTERS 2021; 46:2597-2600. [PMID: 34061065 DOI: 10.1364/ol.428239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Recently, cesium lead bromide perovskite glass has been recognized as a potential material to fabricate green light emission devices because of their high stability and excellent optical performance. However, the low photoluminescence efficiency and poor color purity ($\lt\! 525\,\,{\rm nm}$) of ${{\rm CsPbBr}_3}$ quantum dot (QD) glass restricts its practical application. In this work, self-crystallization ${{\rm CsPbBr}_3}$ QD glasses are successfully prepared via the melt quenching method, and the photoluminescence efficiency increases 10-fold compared with regular thermal treatment ${{\rm CsPbBr}_3}$ QD glass without ${\rm Ag}^+$ doping. The green light-emitting devices based on bulk self-crystallization ${{\rm CsPbBr}_3}$ QD glass with 0.4 mol.% ${\rm Ag}^+$ doping achieves a luminescence efficiency of 20.85 lm/W with a CIE (0.2084, 0.6026) under a 20 mA driving current. The present results provide new, to the best of our knowledge, insight into the application of ${{\rm CsPbBr}_3}$ QD glass in the optoelectronic field.
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Dong H, Kareem S, Gong X, Ruan J, Gao P, Zhou X, Liu X, Zhao X, Xie Y. Water-Triggered Transformation of Ligand-Free Lead Halide Perovskite Nanocrystal-Embedded Pb(OH)Br with Ultrahigh Stability. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23960-23969. [PMID: 33974393 DOI: 10.1021/acsami.1c06627] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lead halide perovskite (LHP) nanomaterials have attracted tremendous attention owing to their remarkable optoelectronic properties. However, they are extremely unstable under moist environments, high temperatures, and light illumination due to their intrinsic structural lability, which has been the critical unsolved problem for practical applications. To address this issue, we propose a facile and environmentally friendly ligand-free approach to design and synthesize rod-like CsPb2Br5-embedded Pb(OH)Br with excellent stability under various harsh environments such as soaking in water, heating, and ultraviolet (UV) illumination. Plate-like CsPbBr3- and Cs4PbBr6-embedded Pb(OH)Br powders are first formed by evaporating the solvent in a dispersion of ethanol (or methanol, isopropanol), Cs2CO3, and PbBr2. Upon soaking in water, the plate-like sample undergoes phase transformation from CsPbBr3 and Cs4PbBr6 to CsPb2Br5 and shape conversion from nanoplate to a microrod, leading to the formation of rod-like CsPb2Br5-embedded Pb(OH)Br. The stable Pb(OH)Br coating effectively prevents the luminescent CsPb2Br5 nanocrystals from reacting with water, leading to extremely high aqueous stability of the CsPb2Br5-embedded Pb(OH)Br. The photoluminescence (PL) intensity of the representative CsPb2Br5-embedded Pb(OH)Br sample can maintain 92.2% of the initial PL intensity value even after soaking in room-temperature water for 165 days; in the meantime, the phase and shape are preserved. The typical sample also shows outstanding stability under hot water, UV illumination, and annealing conditions. The ultrahigh aqueous stability, thermal stability, and photostability of the CsPb2Br5-embedded Pb(OH)Br nanomaterials suggest an effective, facile, and environmentally friendly technique to grow perovskite-based nanomaterials for promising practical applications in the optoelectronic field.
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Affiliation(s)
- Hao Dong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P. R. China
| | - Shefiu Kareem
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P. R. China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P. R. China
| | - Jian Ruan
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P. R. China
| | - Peng Gao
- Laboratory of Advanced Functional Materials, Xiamen Institute of Rare-earth Materials, Chinese Academy of Science, No 1300 Jimei Road, Jimei District, 361021 Xiamen, Fujian, P. R. China
| | - Xuedong Zhou
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P. R. China
| | - Xiaoqing Liu
- Center for Materials Research & Testing, Wuhan University of Technology, Wuhan, Hubei 430070, P. R. China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P. R. China
| | - Yi Xie
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan 430070, P. R. China
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Chen M, Zhang X, Luo C, Qi R, Peng H, Lin H. Highly Stable Waterborne Luminescent Inks Based on MAPbBr 3@PbBr(OH) Nanocrystals for LEDs and Anticounterfeit Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20622-20632. [PMID: 33886265 DOI: 10.1021/acsami.1c01905] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Waterborne polymers are advantageous in terms of cost, convenience, sustainability, and environmental friendliness. As lead halide perovskite (LHP) nanocrystals suffer from fast degradation in the presence of water, it is challenging to encapsulate LHP nanocrystals in waterborne polymers. In this work, luminescent MAPbBr3@PbBr(OH) nanocrystals were synthesized via the aqueous grinding process in the presence of 2-methyl-imidazole (2-MIM) and oleylamime (OAm). 2-MIM triggers the formation of the PbBr(OH) matrix, and OAm acts as a size-control ligand to control the size of MAPbBr3@PbBrOH particles in the nanoscale range. Highly stable waterborne luminescent inks were successfully prepared by blending MAPbBr3@PbBr(OH) nanocrystals with waterborne polymers, including poly(vinylpyrrolidone), poly(vinyl acetate), and acrylate resins. Owning to the dual protection of the polymer matrix and PbBr(OH) to LHP quantum dots (QDs), the luminescent films exhibit excellent stability to the environment under thermal and light irradiation. The ink can be used as a phosphor to fabricate down-converting green and white light-emitting diodes (LEDs). Waterborne anticounterfeiting inks suitable for screen printing were prepared via formula tuning for the anticounterfeit purpose. The anticounterfeiting luminescent patterns can be screen printed on paper, cloth, and poly(ethylene terephthalate) (PET), with encryption and decryption of information being accurately and conveniently realized by switching UV irradiation.
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Affiliation(s)
- Maosheng Chen
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics, East China Normal University, Dongchuan Road 500, Shanghai 200241, P. R. China
| | - Xu Zhang
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics, East China Normal University, Dongchuan Road 500, Shanghai 200241, P. R. China
| | - Chunhua Luo
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics, East China Normal University, Dongchuan Road 500, Shanghai 200241, P. R. China
| | - Ruijuan Qi
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics, East China Normal University, Dongchuan Road 500, Shanghai 200241, P. R. China
| | - Hui Peng
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics, East China Normal University, Dongchuan Road 500, Shanghai 200241, P. R. China
| | - Hechun Lin
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronics, East China Normal University, Dongchuan Road 500, Shanghai 200241, P. R. China
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37
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Li P, Duan Y, Lu Y, Xu S, Zhang J. Broadband absorption mechanism based on quantum dot glass for filtering field. OPTICS LETTERS 2021; 46:1213-1216. [PMID: 33720150 DOI: 10.1364/ol.420229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Traditional filters are faced with the problems of high price and complex preparation process. It is necessary to find a new method or material to make up for these shortcomings. In this Letter, CsPbBr3 nanocrystals with controllable size were prepared in a tellurite glass matrix by a simple and effective heat treatment process. The absorption wavelength of CsPbBr3 quantum dots gradually shifted to red due to the quantum confinement effect. In addition, the intrinsic photoluminescence intensity of CsPbBr3 quantum dots was reduced by Ce4+-doped quantum dot CsPbBr3 glass, which could shield a short wavelength of 200-530 nm. The uniformly distributed quantum dots ensure high transmittance (>80%) of a long wavelength (560-800 nm), demonstrating that the quantum dot glass material has a broad application prospect as a shortwave shielding material.
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38
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Qin Y, Lu J, Meng F, Lin X, Feng Y, Yan Y, Meng M. Rationally constructing of a novel 2D/2D WO3/Pt/g-C3N4 Schottky-Ohmic junction towards efficient visible-light-driven photocatalytic hydrogen evolution and mechanism insight. J Colloid Interface Sci 2021; 586:576-587. [DOI: 10.1016/j.jcis.2020.10.123] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/16/2020] [Accepted: 10/27/2020] [Indexed: 02/01/2023]
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39
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Chang T, Wei Q, Zeng R, Cao S, Zhao J, Zou B. Efficient Energy Transfer in Te 4+-Doped Cs 2ZrCl 6 Vacancy-Ordered Perovskites and Ultrahigh Moisture Stability via A-Site Rb-Alloying Strategy. J Phys Chem Lett 2021; 12:1829-1837. [PMID: 33577319 DOI: 10.1021/acs.jpclett.1c00255] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As an effective method to improve the optical properties and stability of perovskite matrix, doped halide perovskites have attracted extensive attention in the field of optoelectronic applications. Herein, a series of all inorganic lead-free Te4+-doped Cs2ZrCl6 vacancy-ordered perovskites were successfully synthesized with different Te-doping concentrations by a solvothermal method, and deliberate Te4+-doping results in green-yellow triplet self-trapped exciton (STE) emission with a high photoluminescence quantum yield (PLQY) of 49.0%. The efficient energy transfer was observed from singlet to triplet emission. Further, the effects of A-site Rb alloying on the optical properties and stability were investigated. We found that A-site Rb alloying and C-site cohalogenation did not change the luminescence properties of Te4+, but the addition of a small amount of Rb+ can improve the PL intensity and moisture stability. Our results provide physical insights into the nS2 Te4+-ion-doping-induced emissive mechanism and shed light on improving the environmental stability for further applications.
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Affiliation(s)
- Tong Chang
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Qilin Wei
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Ruosheng Zeng
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Sheng Cao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Jialong Zhao
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Bingsuo Zou
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
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40
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Cheng H, Yin Y, Tang J, Fan D, Huang JJ, Jin S. Water-assisted synthesis of highly stable CsPbX 3 perovskite quantum dots embedded in zeolite-Y. RSC Adv 2021; 11:2866-2871. [PMID: 35424236 PMCID: PMC8693835 DOI: 10.1039/d0ra08311a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/25/2020] [Indexed: 11/25/2022] Open
Abstract
All-inorganic perovskite materials have emerged as highly promising materials for solar cells and photoelectronic applications. However, the poor stability of perovskites in ambient conditions significantly hampers their practical applications. In this work, we report a three-step synthesis of size tunable CsPbX3 (X = Br, Cl, or I) quantum dots (QDs) embedded in zeolite-Y (CsPbX3-Y), which involves efficient chemical transformation of non-luminescent Cs4PbX6 to highly luminescent CsPbX3 by stripping CsX through an interfacial reaction with water. We show that the size and the emission of CsPbX3 in CsPbX3-Y can be tuned by the amount of water added as well as the halide composition. More importantly, the as-prepared CsPbX3-Y show significantly enhanced stability against moisture upon protection by zeolite-Y. This work not only reports a new pathway for the preparation of highly luminescent CsPbX3 but also provided new insights into the chemical transformation behavior and stabilization mechanism of these emerging perovskites. Embedding CsPbX3 in zeolite-Y results in significantly enhanced stability and tunable emission upon exposure to water.![]()
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Affiliation(s)
- Hui Cheng
- School of Applied Physics and Materials, Wuyi University Jiangmen 529020 China.,National Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian China 116023
| | - Yanfeng Yin
- National Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian China 116023
| | - Jianbo Tang
- National Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian China 116023
| | - Donghua Fan
- School of Applied Physics and Materials, Wuyi University Jiangmen 529020 China
| | - Jan J Huang
- School of Applied Physics and Materials, Wuyi University Jiangmen 529020 China
| | - Shengye Jin
- National Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian China 116023
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41
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Li C, Li J, Li Z, Zhang H, Dang Y, Kong F. Highly emissive halide perovskite nanocrystals: from lead to lead-free. CrystEngComm 2021. [DOI: 10.1039/d1ce00344e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly emissive halide perovskite nanocrystals with tunable emission spectra covering the entire visible spectra.
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Affiliation(s)
- Chunlong Li
- State Key Laboratory of Biobased Material and Green Papermaking
- Qilu University of Technology, Shandong Academy of Sciences
- P. R. China
| | - Jie Li
- International College of Optoelectronic Engineering
- Qilu University of Technology, Shandong Academy of Sciences
- P. R. China
| | - Zhengping Li
- State Key Laboratory of Biobased Material and Green Papermaking
- Qilu University of Technology, Shandong Academy of Sciences
- P. R. China
| | - Huayong Zhang
- State Key Laboratory of Biobased Material and Green Papermaking
- Qilu University of Technology, Shandong Academy of Sciences
- P. R. China
| | - Yangyang Dang
- School of Physics and Physical Engineering
- Shandong Provincial Key Laboratory of Laser Polarization and Information Technology
- Qufu Normal University
- Qufu
- P. R. China
| | - Fangong Kong
- State Key Laboratory of Biobased Material and Green Papermaking
- Qilu University of Technology, Shandong Academy of Sciences
- P. R. China
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42
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Xu W, Ji R, Liu P, Cheng L, Zhu L, Zhang J, Chen H, Tong Y, Zhang C, Kuang Z, Zhang H, Lai J, Wen K, Yang P, Wang N, Huang W, Wang J. In Situ-Fabricated Perovskite Nanocrystals for Deep-Blue Light-Emitting Diodes. J Phys Chem Lett 2020; 11:10348-10353. [PMID: 33232157 DOI: 10.1021/acs.jpclett.0c03120] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Efficient and stable deep-blue emission from perovskite light-emitting diodes (LEDs) is required for their application in lighting and displays. However, this is difficult to achieve due to the phase segregation issue of mixed halide perovskites and the challenge of synthesizing high-quality single-halide deep-blue perovskite nanocrystals through a traditional method. Here, we show that an antisolvent treatment can facilitate the in situ formation of perovskite nanocrystals using a facile spin-coating method. We find that the dropping time of the antisolvent can significantly affect the constitution of nanocrystal perovskite films. With a delay in the start time of the antisolvent treatment, small single-halide perovskite nanocrystals can be achieved, exhibiting efficient deep-blue emission. The LED device shows a stable electroluminescence (EL) peak at 465 nm, with a peak external quantum efficiency and a peak current efficiency of 2.4% and 2.5 cd A-1, respectively. This work provides a facile approach to changing the size of perovskite nanocrystals, thus effectively tuning their EL emission spectra.
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Affiliation(s)
- Wenjie Xu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Ruiqi Ji
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Pinlei Liu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lu Cheng
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lin Zhu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Ju Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Hong Chen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yunfang Tong
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Chenglong Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Zhiyuan Kuang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Hao Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Jingya Lai
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Kaichuan Wen
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Pinghui Yang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Nana Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
- Frontiers Science Center for Flexible Electronics (FSCFE) and Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China
| | - Jianpu Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
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Abstract
Halide perovskite nanocrystals (NCs) are a unique class of NCs with novel properties distinct from those of traditional semiconductor NCs. These exceptional properties of defect tolerance, large absorption coefficients, high brightness, and narrow emission linewidths stem from their atypical band structure. Their facile synthesis and broad colour tunability have attracted widespread interest for application in light emitting devices and lasers. One fledging niche area is the field of multiphoton excited emission where their giant nonlinear optical action cross-sections are highly favorable for imaging applications. This Frontier article examines the state-of-the-art in perovskite NCs for multiphoton applications from the materials science and physics perspectives that include their synthesis and nonlinear optical characterization. Opportunities and challenges of these exceptional NCs as potential fluorescent labels for multiphoton deep tissue microscopy are also highlighted.
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Affiliation(s)
- Huajun He
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
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44
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Hui LS, Munir M, Vuong A, Hilke M, Wong V, Fanchini G, Scharber MC, Sariciftci NS, Turak A. Universal Transfer Printing of Micelle-Templated Nanoparticles Using Plasma-Functionalized Graphene. ACS APPLIED MATERIALS & INTERFACES 2020; 12:46530-46538. [PMID: 32940032 PMCID: PMC7564086 DOI: 10.1021/acsami.0c12178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
Nanostructure incorporation into devices plays a key role in improving performance, yet processes for preparing two-dimensional (2D) arrays of colloidal nanoparticles tend not to be universally applicable, particularly for soft and oxygen-sensitive substrates for organic and perovskite-based electronics. Here, we show a method of transferring reverse micelle-deposited (RMD) nanoparticles (perovskite and metal oxide) on top of an organic layer, using a functionalized graphene carrier layer for transfer printing. As the technique can be applied universally to RMD nanoparticles, we used magnetic (γ-Fe2O3) and luminescent (methylammonium lead bromide (MAPbBr3)) nanoparticles to validate the transfer-printing methodology. The strong photoluminescence from the MAPbBr3 under UV illumination and high intrinsic field of the γ-Fe2O3 as measured by magnetic force microscopy (MFM), coupled with Raman measurements of the graphene layer, confirm that all components survive the transfer-printing process with little loss of properties. Such an approach to introducing uniform 2D arrays of nanoparticles onto sensitive substrates opens up new avenues to tune the device interfacial properties.
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Affiliation(s)
- Lok Shu Hui
- Department
of Engineering Physics, McMaster University, Hamilton L8S 4L7, Ontario, Canada
| | - Muhammad Munir
- Department
of Engineering Physics, McMaster University, Hamilton L8S 4L7, Ontario, Canada
| | - An Vuong
- Department
of Physics, McGill University, Montreal H3A 2T8, Quebec, Canada
| | - Michael Hilke
- Department
of Physics, McGill University, Montreal H3A 2T8, Quebec, Canada
| | - Victor Wong
- Department
of Physics and Astronomy, University of
Western Ontario, London N6A 3K7, Ontario, Canada
| | - Giovanni Fanchini
- Department
of Physics and Astronomy, University of
Western Ontario, London N6A 3K7, Ontario, Canada
| | - Markus Clark Scharber
- Linz
Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University, Linz 4040, Austria
| | - Niyazi Serdar Sariciftci
- Linz
Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University, Linz 4040, Austria
| | - Ayse Turak
- Department
of Engineering Physics, McMaster University, Hamilton L8S 4L7, Ontario, Canada
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45
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Zhou H, Park J, Lee Y, Park JM, Kim JH, Kim JS, Lee HD, Jo SH, Cai X, Li L, Sheng X, Yun HJ, Park JW, Sun JY, Lee TW. Water Passivation of Perovskite Nanocrystals Enables Air-Stable Intrinsically Stretchable Color-Conversion Layers for Stretchable Displays. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001989. [PMID: 32715525 DOI: 10.1002/adma.202001989] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/01/2020] [Indexed: 06/11/2023]
Abstract
Conventional organic light-emitting devices without an encapsulation layer are susceptible to degradation when exposed to air, so realization of air-stable intrinsically-stretchable display is a great challenge because the protection of the devices against penetration of moisture and oxygen is even more difficult under stretching. An air-stable intrinsically-stretchable display that is composed of an intrinsically-stretchable electroluminescent device (SELD) integrated with a stretchable color-conversion layer (SCCL) that contains perovskite nanocrystals (PeNCs) is proposed. PeNCs normally decay when exposed to air, but they become resistant to this decay when dispersed in a stretchable elastomer matrix; this change is a result of a compatibility between capping ligands and the elastomer matrix. Counterintuitively, the moisture can efficiently passivate surface defects of PeNCs, to yield significant increases in both photoluminescence intensity and lifetime. A display that can be stretched up to 180% is demonstrated; it is composed of an air-stable SCCL that down-converts the SELD's blue emission and reemits it as green. The work elucidates the basis of moisture-assisted surface passivation of PeNCs and provides a promising strategy to improve the quantum efficiency of PeNCs with the aid of moisture, which allows PeNCs to be applied for air-stable stretchable displays.
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Affiliation(s)
- Huanyu Zhou
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jinwoo Park
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yeongjun Lee
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jae-Man Park
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jin-Hoon Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Joo Sung Kim
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hyeon-Dong Lee
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seung Hyeon Jo
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Xue Cai
- Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China
| | - Lizhu Li
- Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China
| | - Xing Sheng
- Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China
| | - Hyung Joong Yun
- Advanced Nano Research Group, Korea Basic Science Institute (KBSI), Daejeon, 34126, Republic of Korea
| | - Jin-Woo Park
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jeong-Yun Sun
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Tae-Woo Lee
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University (SNU), Seoul, 08826, Republic of Korea
- Institute of Engineering Research, Research Institute of Advanced Materials, Nano Systems Institute (NSI), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
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46
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Assessment of Crystalline Materials for Solid State Lighting Applications: Beyond the Rare Earth Elements. CRYSTALS 2020. [DOI: 10.3390/cryst10070559] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In everyday life, we are continually exposed to different lighting systems, from the home interior to car lights and from public lighting to displays. The basic emission principles on which they are based range from the old incandescent lamps to the well-established compact fluorescent lamps (CFL) and to the more modern Light Emitting Diode (LEDs) that are dominating the actual market and also promise greater development in the coming years. In the LED technology, the key point is the electroluminescence material, but the fundamental role of proper phosphors is sometimes underestimated even when it is essential for an ideal color rendering. In this review, we analyze the main solid-state techniques for lighting applications, paying attention to the fundamental properties of phosphors to be successfully applied. Currently, the most widely used materials are based on rare-earth elements (REEs) whereas Ce:YAG represents the benchmark for white LEDs. However, there are several drawbacks to the REEs’ supply chain and several concerns from an environmental point of view. We analyze these critical issues and review alternative materials that can overcome their use. New compounds with reduced or totally REE free, quantum dots, metal–organic framework, and organic phosphors will be examined with reference to the current state-of-the-art.
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Qin Y, Li H, Lu J, Ding Y, Ma C, Liu X, Meng M, Yan Y. Fabrication of Bi2WO6/In2O3 photocatalysts with efficient photocatalytic performance for the degradation of organic pollutants: Insight into the role of oxygen vacancy and heterojunction. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.05.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Na G, Zhang L. Stable and luminescent halide perovskite fabricated in water. LIGHT, SCIENCE & APPLICATIONS 2020; 9:106. [PMID: 32577222 PMCID: PMC7305146 DOI: 10.1038/s41377-020-0340-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Lead bromide perovskite nanoparticles are fabricated in the water, which has been recognized previously as a severe source of damage to halide perovskite materials and devices. The perovskite nanoparticles exhibit a high photoluminescence quantum yield and excellent material stability.
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Affiliation(s)
- Guangren Na
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials of MOE and College of Materials Science and Engineering, Jilin University, Changchun, 130012 China
| | - Lijun Zhang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials of MOE and College of Materials Science and Engineering, Jilin University, Changchun, 130012 China
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