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Wang Y, Wang Y, Lan C, Zhou L, Kang J, Zheng W, Xue T, Li Y, Yuan X, Xiao S, Li H, He J. Interfacial Charge Transfer for Enhancing Nonlinear Saturable Absorption in WS 2/graphene Heterostructure. Adv Sci (Weinh) 2024; 11:e2306096. [PMID: 38225721 DOI: 10.1002/advs.202306096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 12/14/2023] [Indexed: 01/17/2024]
Abstract
Interlayer charge-transfer (CT) in 2D atomically thin vertical stacks heterostructures offers an unparalleled new approach to regulation of device performance in optoelectronic and photonics applications. Despite the fact that the saturable absorption (SA) in 2D heterostructures involves highly efficient optical modulation in the space and time domain, the lack of explicit SA regulation mechanism at the nanoscale prevents this feature from realizing nanophotonic modulation. Here, the enhancement of SA response via CT in WS2/graphene vertical heterostructure is proposed and the related mechanism is demonstrated through simulations and experiments. Leveraging this mechanism, CT-induced SA enhancement can be expanded to a wide range of nonlinear optical modulation applications for 2D materials. The results suggest that CT between 2D heterostructures enables efficient nonlinear optical response regulation.
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Affiliation(s)
- Yiduo Wang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Yingwei Wang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Changyong Lan
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Li Zhou
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Jianlong Kang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Wanxin Zheng
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Tianyu Xue
- Center for High-Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
| | - Yejun Li
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Xiaoming Yuan
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Si Xiao
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Heping Li
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Jun He
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China
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2
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Hayat A, Sohail M, Anwar U, Taha TA, Qazi HIA, Amina, Ajmal Z, Al-Sehemi AG, Algarni H, Al-Ghamdi AA, Amin MA, Palamanit A, Nawawi WI, Newair EF, Orooji Y. A Targeted Review of Current Progress, Challenges and Future Perspective of g-C 3 N 4 based Hybrid Photocatalyst Toward Multidimensional Applications. CHEM REC 2023; 23:e202200143. [PMID: 36285706 DOI: 10.1002/tcr.202200143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 09/12/2022] [Indexed: 01/21/2023]
Abstract
The increasing demand for searching highly efficient and robust technologies in the context of sustainable energy production totally rely onto the cost-effective energy efficient production technologies. Solar power technology in this regard will perceived to be extensively employed in a variety of ways in the future ahead, in terms of the combustion of petroleum-based pollutants, CO2 reduction, heterogeneous photocatalysis, as well as the formation of unlimited and sustainable hydrogen gas production. Semiconductor-based photocatalysis is regarded as potentially sustainable solution in this context. g-C3 N4 is classified as non-metallic semiconductor to overcome this energy demand and enviromental challenges, because of its superior electronic configuration, which has a median band energy of around 2.7 eV, strong photocatalytic stability, and higher light performance. The photocatalytic performance of g-C3 N4 is perceived to be inadequate, owing to its small surface area along with high rate of charge recombination. However, various synthetic strategies were applied in order to incorporate g-C3 N4 with different guest materials to increase photocatalytic performance. After these fabrication approaches, the photocatalytic activity was enhanced owing to generation of photoinduced electrons and holes, by improving light absorption ability, and boosting surface area, which provides more space for photocatalytic reaction. In this review, various metals, non-metals, metals oxide, sulfides, and ferrites have been integrated with g-C3 N4 to form mono, bimetallic, heterojunction, Z-scheme, and S-scheme-based materials for boosting performance. Also, different varieties of g-C3 N4 were utilized for different aspects of photocatalytic application i. e., water reduction, water oxidation, CO2 reduction, and photodegradation of dye pollutants, etc. As a consequence, we have assembled a summary of the latest g-C3 N4 based materials, their uses in solar energy adaption, and proper management of the environment. This research will further well explain the detail of the mechanism of all these photocatalytic processes for the next steps, as well as the age number of new insights in order to overcome the current challenges.
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Affiliation(s)
- Asif Hayat
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR, China.,College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Muhammad Sohail
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, P.R. China
| | - Usama Anwar
- Soochow Institute for Energy and Materials Innovations, College of Energy, Soochow University, Suzhou, 215006, China
| | - T A Taha
- Physics Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia.,Physics and Engineering Mathematics Department, Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt
| | - H I A Qazi
- College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
| | - Amina
- Department of Physics, Bacha Khan University Charsadda, Pakistan
| | - Zeeshan Ajmal
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, 710072, Xian, PR China
| | - Abdullah G Al-Sehemi
- Research Center for Adv. Mater. Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.,Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Hamed Algarni
- Research Center for Adv. Mater. Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.,Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Ahmed A Al-Ghamdi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mohammed A Amin
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Arkom Palamanit
- Energy Technol. Program, Department of Specialized Engineering, Faculty of Engineering, Prince of Songkla University, 15 Karnjanavanich Rd., Hat Yai, Songkhla 90110, Thailand
| | - W I Nawawi
- Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Perlis, 02600, Arau Perlis, Malaysia
| | - Emad F Newair
- Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Yasin Orooji
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
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Zhang W, Shen Z, Wu Y, Zhang W, Zhang T, Yu BY, Zheng X, Tian J. Renal-clearable and biodegradable black phosphorus quantum dots for photoacoustic imaging of kidney dysfunction. Anal Chim Acta 2022; 1204:339737. [PMID: 35397900 DOI: 10.1016/j.aca.2022.339737] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/07/2022] [Accepted: 03/16/2022] [Indexed: 11/29/2022]
Abstract
The kidney is a vital organ and susceptible to various diseases. Photoacoustic (PA) imaging provides a powerful technique for studying kidney dysfunction, for which many smart photoacoustic imaging agents have been developed. But the complete clearance of the introduced contrast agents after imaging remains to be challenging, leading to long-term toxicity concerns. In this study, we synthesized black phosphorous quantum dots (BPQDs) with ultra-small size (1.74 ± 0.23 nm after surface modification) and strong PA signal for imaging kidney dysfunction. Importantly, the renal-clearance property and biodegradability of the developed BPQDs help circumvent the long-term toxicity issue for in vivo studies. Based on these BPQDs, both acute kidney injury and chronic kidney disease were successfully detected in the living mice by PA imaging, with higher detection sensitivity than the clinical serum indices examination method. This BPQDs-based PA imaging method should have a promising potential for the early diagnosis of kidney dysfunction in clinic.
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Affiliation(s)
- Wangning Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Zhuoxia Shen
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yan Wu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Wenze Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Tiange Zhang
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
| | - Bo-Yang Yu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Xianchuang Zheng
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China.
| | - Jiangwei Tian
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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4
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Wei H, Wang Y, Wang Y, Fan W, Zhou L, Long M, Xiao S, He J. Giant two-photon absorption in MXene quantum dots. Opt Express 2022; 30:8482-8493. [PMID: 35299300 DOI: 10.1364/oe.450617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
Looking for materials with compelling nonlinear optical (NLO) response is of great importance for next-generation nonlinear nanophotonics. We demonstrate an escalated two-photon absorption (TPA) in ultrasmall niobium carbide quantum dots (Nb2C QDs) that is induced by a two-even-parity states transition. The TPA response of Nb2C QDs was observed in the near-infrared band of 1064-1550 nm. Surprisingly, at 1064 nm, Nb2C QDs shows an enhanced TPA response than other wavelengths with a nonlinear absorption coefficient up to a value of 0.52 ± 0.05 cm/GW. Additionally, the nonlinear optical response of Nb2C changes to saturable absorption when the incident wavelength is between 400-800 nm wavelength. Density functional theory (DFT) validates that TPA, induced by two even-parity states transition, breaks the forbidden single-photon transition, enabling a tremendous TPA response in Nb2C QDs at 1064 nm. It offers the possibility of manipulating the NLO response of Nb2C via morphology or surface termination.
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Fan X, Zhang S, Guan R, Shao X, Jiang S, Hu Y, Wang S, Yue Q. Black phosphorus quantum dots as photocatalyst for dye degradation with a high efficiency and rate constant. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Rajabpour S, Vera A, He W, Katz BN, Koch RJ, Lassaunière M, Chen X, Li C, Nisi K, El-Sherif H, Wetherington MT, Dong C, Bostwick A, Jozwiak C, van Duin ACT, Bassim N, Zhu J, Wang GC, Wurstbauer U, Rotenberg E, Crespi V, Quek SY, Robinson JA. Tunable 2D Group-III Metal Alloys. Adv Mater 2021; 33:e2104265. [PMID: 34480500 DOI: 10.1002/adma.202104265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/14/2021] [Indexed: 06/13/2023]
Abstract
Chemically stable quantum-confined 2D metals are of interest in next-generation nanoscale quantum devices. Bottom-up design and synthesis of such metals could enable the creation of materials with tailored, on-demand, electronic and optical properties for applications that utilize tunable plasmonic coupling, optical nonlinearity, epsilon-near-zero behavior, or wavelength-specific light trapping. In this work, it is demonstrated that the electronic, superconducting, and optical properties of air-stable 2D metals can be controllably tuned by the formation of alloys. Environmentally robust large-area 2D-Inx Ga1- x alloys are synthesized byConfinement Heteroepitaxy (CHet). Near-complete solid solubility is achieved with no evidence of phase segregation, and the composition is tunable over the full range of x by changing the relative elemental composition of the precursor. The optical and electronic properties directly correlate with alloy composition, wherein the dielectric function, band structure, superconductivity, and charge transfer from the metal to graphene are all controlled by the indium/gallium ratio in the 2D metal layer.
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Affiliation(s)
- Siavash Rajabpour
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Alexander Vera
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Wen He
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive, Singapore, 117575, Singapore
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore
| | - Benjamin N Katz
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Physics, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Roland J Koch
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Margaux Lassaunière
- Institute of Physics, University of Münster, Münster, 48149, Germany
- Center for Soft Nanoscience, University of Münster, Münster, 48149, Germany
| | - Xuegang Chen
- Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Cequn Li
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Physics, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Katharina Nisi
- Institute of Physics, University of Münster, Münster, 48149, Germany
- Physics Department, Technical University of Munich, Garching, 85748, Germany
| | - Hesham El-Sherif
- Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, L8S 4L8, Canada
| | - Maxwell T Wetherington
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Chengye Dong
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- 2-Dimensional Crystal Consortium, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Aaron Bostwick
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Chris Jozwiak
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Adri C T van Duin
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- 2-Dimensional Crystal Consortium, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Chemistry, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Nabil Bassim
- Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario, L8S 4L8, Canada
- Canadian Centre for Electron Microscopy, Hamilton, Ontario, L8S 4L8, Canada
| | - Jun Zhu
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Physics, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Gwo-Ching Wang
- Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Ursula Wurstbauer
- Institute of Physics, University of Münster, Münster, 48149, Germany
- Center for Soft Nanoscience, University of Münster, Münster, 48149, Germany
| | - Eli Rotenberg
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Vincent Crespi
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Physics, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- 2-Dimensional Crystal Consortium, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Chemistry, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
| | - Su Ying Quek
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive, Singapore, 117575, Singapore
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore
- Department of Physics, National University of Singapore, Singapore, 117551, Singapore
- NUS Graduate School Integrative Sciences and Engineering Programme, National University of Singapore, Singapore, 117456, Singapore
| | - Joshua A Robinson
- Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
- 2-Dimensional Crystal Consortium, The Pennsylvania State University, University Park, Berkeley, PA, 16802, USA
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Yu Q, Guo K, Dai Y, Deng H, Wang T, Wu H, Xu Y, Shi X, Wu J, Zhang K, Zhou P. Black phosphorus for near-infrared ultrafast lasers in the spatial/temporal domain. J Phys Condens Matter 2021; 33:503001. [PMID: 34544055 DOI: 10.1088/1361-648x/ac2862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Two-dimensional (2D) materials have attracted extensive interests due to their wide range of electronic and optical properties. After continuous and extensive research, black phosphorus (BP), a novel member of 2D layered semiconductor material, benefit for the unique in-plane anisotropic structure, controllable direct bandgap characteristic, and high charge carrier mobility, has attracted tremendous attention and successfully applied in ultrafast pulse generation. This article, which focuses on near-infrared ultrafast laser demonstration of BP, present discussion of preparation methods for high quality BP nanosheet, various BP based ultrafast lasers in the spatial/temporal domain, and the future research needs.
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Affiliation(s)
- Qiang Yu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People's Republic of China
- I-Lab & Key Laboratory of Nanophotonic Materials and Devices, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, People's Republic of China
| | - Kun Guo
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People's Republic of China
| | - Yongping Dai
- I-Lab & Key Laboratory of Nanophotonic Materials and Devices, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, People's Republic of China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, People's Republic of China
| | - Haiqin Deng
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People's Republic of China
| | - Tao Wang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People's Republic of China
| | - Hanshuo Wu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People's Republic of China
| | - Yijun Xu
- I-Lab & Key Laboratory of Nanophotonic Materials and Devices, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, People's Republic of China
| | - Xinyao Shi
- Institute of Quantum Sensing of Wuxi, Wuxi, People's Republic of China
| | - Jian Wu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People's Republic of China
| | - Kai Zhang
- I-Lab & Key Laboratory of Nanophotonic Materials and Devices, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, People's Republic of China
| | - Pu Zhou
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People's Republic of China
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Wang G, Mei S, Liao J, Wang W, Tang Y, Zhang Q, Tang Z, Wu B, Xing G. Advances of Nonlinear Photonics in Low-Dimensional Halide Perovskites. Small 2021; 17:e2100809. [PMID: 34121324 DOI: 10.1002/smll.202100809] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Hybrid halide perovskites emerging as a highly promising class of functional materials for semiconductor optoelectronic applications have drawn great attention from worldwide researchers. In the past few years, prominent nonlinear optical properties have been demonstrated in perovskite bulk structures indicating their bright prospect in the field of nonlinear optics (NLO). Following the surge of 3D perovskites, more recently, the low-dimensional perovskites (LDPs) materials ranging from two-, one-, to zero-dimension such as quantum-wells or colloidal nanostructures have displayed unexpectedly attractive NLO response due to the strong quantum confinement, remarkable exciton effect, and structural diversity. In this perspective, the current state of the art is reviewed in the field of NLO for LDP materials. The relationship between confinement effect and NLO is analyzed systematically to give a comprehensive understanding of the function of dimension reduction. Furthermore, future directions and challenges toward the improvement of the NLO in LDP materials are discussed to provide an outlook in this rapidly developing field.
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Affiliation(s)
- Gang Wang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao SAR, 999078, P. R. China
| | - Shiliang Mei
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao SAR, 999078, P. R. China
| | - Jinfeng Liao
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao SAR, 999078, P. R. China
| | - Wei Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yuxin Tang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Qing Zhang
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zikang Tang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao SAR, 999078, P. R. China
| | - Bo Wu
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Guichuan Xing
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao SAR, 999078, P. R. China
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Wang Y, Wang Y, Dong Y, Zhou L, Wei H, Long M, Xiao S, He J. The nonlinear optical transition bleaching in tellurene. Nanoscale 2021; 13:15882-15890. [PMID: 34519753 DOI: 10.1039/d1nr03639d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To date, outstanding linear and nonlinear optical properties of tellurene, caused by multiple two-dimensional (2D) phases and optical anisotropy, have attracted considerable interest for potential nanophotonics applications. In this work, the ultrafast nonlinear optical (NLO) properties of α-tellurene have been studied via Z-scan and pump-probe techniques at a broadband spectral region. Typical saturable absorption and band filling effects are observed in tellurene due to the Pauli exclusion principle. Analysis using density functional theory (DFT) computation shows the enhancements in NLO response within the ultraviolet-visible absorption spectral region are owing to the increased optical intraband transition in tellurene. Moreover, the effects of varying the photon energy of the probe pulse were explored. Our results indicated that probe pulses with higher photon energies can make smaller differential transmission signal, this effect is found to be negatively correlated with calculated joint density of states (JDOS). These results offer insights into the intrinsic photophysics of 2D tellurene, driving its applications in photonic and optoelectronic fields.
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Affiliation(s)
- Yiduo Wang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, P. R. China.
| | - Yingwei Wang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, P. R. China.
| | - Yulan Dong
- Key Laboratory of Hunan Province for Statistical Learning and Intelligent Computation, Mathematics and Statistics, Hunan University of Technology and Business, Changsha, Hunan 410205, China.
| | - Li Zhou
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, P. R. China.
| | - Hao Wei
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, P. R. China.
| | - Mengqiu Long
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, P. R. China.
| | - Si Xiao
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, P. R. China.
| | - Jun He
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, P. R. China.
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10
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Abstract
Using the tight-binding approach, we investigate the electronic and magneto-optical properties of bilayer phosphorene quantum dots (BLPQDs) in the presence of perpendicular electric and magnetic fields. The magneto-energy spectra of the BLPQDs exhibit Aharonov-Bohm oscillations. The period and the amplitude of the oscillation decrease with the size of the BLPQDs. An oscillatory behavior of the local density of states (LDOS) versus the magnetic field is observed, as well as the appearance of the spatial Aharonov-Bohm oscillations in the LDOS. In the absence of the electric field, there exists an s-fold degeneracy (s absolutely flat bands at exactly zero energy) arising from the edge-mode states, where s is the smaller value between M and N, where M and N are the number of phosphorus atoms along the x and y axis, respectively, in a rectangular BLBPQD. The absorption spectra of the BLPQDs are obtained for both in-plane and out-of-plane polarizations. Compared with the absorption spectra of graphene dots, the absorption of an out-of-plane polarization of the incident light is high compared to that of in-plane polarizations. On the other hand, the absorption spectra due to in-plane polarizations are almost the same in the case of graphene, whereas they are considerably different in BLBPQDs. Importantly, the appearance of several sharp and high absorption peaks in the near-infrared (NIR) range dictates the BLBPQDs for application and development of bioimaging, biomedicine and drug delivery technology. More importantly, both the location and intensity of these NIR peaks depend characteristically on the orientation of the polarization of the incident light, which can be desirably tuned by the simultaneous engineering of magnetic and electric fields. Such unique advantage of the anisotropic optical feature enables a new degree of freedom for achieving novel polarization-dependent photonic devices. The dual magnetic and electric field tunable optical and electrical features of the BLPQDs are expected to have important consequences for the development of multifunctional magneto-optoelectronic devices and provide insight into the applicability of quantum photopic technologies based on BLBPQDs.
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Affiliation(s)
- Moslem Zare
- Department of Physics, Yasouj University, Yasouj, Iran 75914-353, Iran.
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11
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Zhong M, Meng H, Ren Z, Huang L, Yang J, Li B, Xia Q, Wang X, Wei Z, He J. Gate-controlled ambipolar transport in b-AsP crystals and their VIS-NIF photodetection. Nanoscale 2021; 13:10579-10586. [PMID: 34100510 DOI: 10.1039/d1nr01715b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As a new two-dimensional elemental layered semiconductor, black phosphorus (b-P) has received tremendous attention due to its excellent physical and chemical properties and has potential applications in the fields of catalysis, energy, and micro/nano-optoelectronic devices. However, studies have found that b-P is very unstable and will decompose within a few minutes under humid air conditions. Element doping is an effective method for adjusting the physical and chemical properties of crystals. Theoretical and experimental studies have confirmed that the stability of b-P crystals is significantly improved after arsenic doping, and the crystals also exhibit excellent photoresponse and electrical transport performances. In this work, we investigate the physical properties of a component of black arsenic phosphorus crystals (b-As0.084P0.916) and the potential applications in field effect transistors (FETs) and broadband photodetectors. An obvious ambipolar behavior is observed in the transfer characteristics of b-As0.084P0.916 based FETs, with drain current modulation on the order of 105 and the highest charge-carrier mobility of up to 147 cm2 V-1 s-1. The physisorption of atmospheric species on the surface of the FETs is the main factor for the formation of Schottky contacts between the Au electrodes and the b-As0.084P0.916 crystal. Temperature-dependent electrical characteristics show that the Fermi level shifts from the valence band to the middle level between the conduction band and valence band as the temperature decreases. In addition, the FETs also exhibit excellent photoresponse properties from the visible to near-infrared region (450-2200 nm), with a responsivity of 37 A W-1, a specific detectivity of 7.18 × 1010 Jones, and a fast response speed (τrise ≈ 0.04 s and τdecay ≈ 0.14 s). These results suggest that b-As0.084P0.916 crystals are a promising candidate for future electronic and optoelectronic devices.
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Affiliation(s)
- Mianzeng Zhong
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Haotong Meng
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Zhihui Ren
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100083, China.
| | - Le Huang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Juehan Yang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100083, China.
| | - Bo Li
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, Hunan, China
| | - Qinglin Xia
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Xiaoting Wang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100083, China.
| | - Zhongming Wei
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100083, China.
| | - Jun He
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
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12
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Guo X, Liu S, Wang W, Li C, Yang Y, Tian Q, Liu Y. Plasmon-induced ultrafast charge transfer in single-particulate Cu 1.94S-ZnS nanoheterostructures. Nanoscale Adv 2021; 3:3481-3490. [PMID: 36133727 PMCID: PMC9418435 DOI: 10.1039/d1na00037c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/22/2021] [Indexed: 06/16/2023]
Abstract
Recombination centers generated from structural and interfacial defects in nanoheterostructures (NHs) prevent effective photo-induced charge transfer and have blocked the advance of many photoresponsive applications. Strategies to construct high-quality interfaces in NHs are emerging but are limited in the release of interfacial strain and the integrality of the sublattice. Herein, we synthesize single-particulate Cu1.94S-ZnS NHs with a continuous sublattice using a nanoscale cation exchange reaction (CE). Under near-infrared (NIR) radiation (λ = 1500 nm), femtosecond open-aperture (OA) Z-scan measurements are applied to investigate the nonlinear optical features of samples and verify the existence of plasma-induced charge transfer in the Cu1.94S-ZnS NHs system. The resulting charge transfer time (τ CT) of ∼0.091 picoseconds (ps) was confirmed by the femtosecond time-resolved pump-probe technique. Such an ultrafast charge transfer process has been rarely reported in semiconductor-semiconductor NHs. The results suggest that CE can be used as a promising tool to construct well-ordered interfacial structures, which are significant for the performance enhancement of NHs for photon utilization.
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Affiliation(s)
- Xueyi Guo
- School of Metallurgy and Environment, Central South University Changsha 410083 China
- Research Institute of Resource Recycling, Central South University Changsha 410083 China
| | - Sheng Liu
- School of Metallurgy and Environment, Central South University Changsha 410083 China
- Research Institute of Resource Recycling, Central South University Changsha 410083 China
| | - Weijia Wang
- State Key Laboratory for Powder Metallurgy, Powder Metallurgy Research Institute, Central South University Changsha 410083 China
- Research Institute of Resource Recycling, Central South University Changsha 410083 China
| | - Chongyao Li
- School of Metallurgy and Environment, Central South University Changsha 410083 China
- Research Institute of Resource Recycling, Central South University Changsha 410083 China
| | - Ying Yang
- School of Metallurgy and Environment, Central South University Changsha 410083 China
- Research Institute of Resource Recycling, Central South University Changsha 410083 China
| | - Qinghua Tian
- School of Metallurgy and Environment, Central South University Changsha 410083 China
- Research Institute of Resource Recycling, Central South University Changsha 410083 China
| | - Yong Liu
- State Key Laboratory for Powder Metallurgy, Powder Metallurgy Research Institute, Central South University Changsha 410083 China
- Research Institute of Resource Recycling, Central South University Changsha 410083 China
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13
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Liu X, Gaihre B, George MN, Li Y, Tilton M, Yaszemski MJ, Lu L. 2D phosphorene nanosheets, quantum dots, nanoribbons: synthesis and biomedical applications. Biomater Sci 2021; 9:2768-2803. [PMID: 33620047 PMCID: PMC9009269 DOI: 10.1039/d0bm01972k] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Phosphorene, also known as black phosphorus (BP), is a two-dimensional (2D) material that has gained significant attention in several areas of current research. Its unique properties such as outstanding surface activity, an adjustable bandgap width, favorable on/off current ratios, infrared-light responsiveness, good biocompatibility, and fast biodegradation differentiate this material from other two-dimensional materials. The application of BP in the biomedical field has been rapidly emerging over the past few years. This article aimed to provide a comprehensive review of the recent progress on the unique properties and extensive medical applications for BP in bone, nerve, skin, kidney, cancer, and biosensing related treatment. The details of applications of BP in these fields were summarized and discussed.
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Affiliation(s)
- Xifeng Liu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA. and Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Bipin Gaihre
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA. and Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Matthew N George
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA. and Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Yong Li
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA. and Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Maryam Tilton
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA. and Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Michael J Yaszemski
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA. and Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA. and Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55905, USA
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14
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Song T, Hou L, Long B, Ali A, Deng GJ. Ultrathin MXene “bridge” to accelerate charge transfer in ultrathin metal-free 0D/2D black phosphorus/g-C3N4 heterojunction toward photocatalytic hydrogen production. J Colloid Interface Sci 2021; 584:474-483. [DOI: 10.1016/j.jcis.2020.09.103] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/23/2020] [Accepted: 09/27/2020] [Indexed: 01/17/2023]
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15
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Chen K, Wang C, Peng Z, Qi K, Guo Z, Zhang Y, Zhang H. The chemistry of colloidal semiconductor nanocrystals: From metal-chalcogenides to emerging perovskite. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213333] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Gong X, Guan L, Li Q, Li Y, Zhang T, Pan H, Sun Q, Shen Y, Grätzel C, Zakeeruddin SM, Grätzel M, Wang M. Black phosphorus quantum dots in inorganic perovskite thin films for efficient photovoltaic application. Sci Adv 2020; 6:eaay5661. [PMID: 32300650 PMCID: PMC7148097 DOI: 10.1126/sciadv.aay5661] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 01/17/2020] [Indexed: 05/29/2023]
Abstract
Black phosphorus quantum dots (BPQDs) are proposed as effective seed-like sites to modulate the nucleation and growth of CsPbI2Br perovskite crystalline thin layers, allowing an enhanced crystallization and remarkable morphological improvement. We reveal that the lone-pair electrons of BPQDs can induce strong binding between molecules of the CsPbI2Br precursor solution and phosphorus atoms stemming from the concomitant reduction in coulombic repulsion. The four-phase transition during the annealing process yields an α-phase CsPbI2Br stabilized by BPQDs. The BPQDS/CsPbI2Br core-shell structure concomitantly reinforces a stable CsPbI2Br crystallite and suppresses the oxidation of BPQDs. Consequently, a power conversion efficiency of 15.47% can be achieved for 0.7 wt % BPQDs embedded in CsPbI2Br film-based devices, with an enhanced cell stability, under ambient conditions. Our finding is a decisive step in the exploration of crystallization and phase stability that can lead to the realization of efficient and stable inorganic perovskite solar cells.
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Affiliation(s)
- Xiu Gong
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Li Guan
- College of Physics Science and Technology, Hebei University, 180 Wusi E Road, Baoding 071000, P.R. China
| | - Qingwei Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Yan Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Tao Zhang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Han Pan
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Qiang Sun
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Yan Shen
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Carole Grätzel
- Laboratory for Photonics and Interfaces, Swiss Federal Institute of Technology, CH 1015 Lausanne, Switzerland
| | - Shaik M. Zakeeruddin
- Laboratory for Photonics and Interfaces, Swiss Federal Institute of Technology, CH 1015 Lausanne, Switzerland
| | - Michael Grätzel
- Laboratory for Photonics and Interfaces, Swiss Federal Institute of Technology, CH 1015 Lausanne, Switzerland
| | - Mingkui Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
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17
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Affiliation(s)
- Ziyu Lv
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yan Wang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China
| | - Jingrui Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, P. R. China
| | - Junjie Wang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China
| | - Ye Zhou
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, P. R. China
| | - Su-Ting Han
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China
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18
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Abstract
Since the year 2014, when scientists first obtained black phosphorus using a sticky tape to peel the layers off, it has attracted tremendous interest as a novel two-dimensional material. After it was successfully produced, its outstanding optical properties have been unveiled. Various applications based on these properties have been reported. This study mainly reviews the unique optical properties and potential applications of black phosphorus. The optical performances of black phosphorus mainly include linear optical properties and nonlinear optical properties. Some examples include the anisotropic optical response, saturable absorption effect and Kerr effect. The researchers found that the nonlinear saturable absorption coefficients of black phosphorus are better than that of MoS2 and WS2 from the visible region to the near-infrared region. Compared with graphene, black phosphorus has a better nonlinear saturable absorption performance. After passivation or surface modification, black phosphorus is stable when exposed to oxygen and water. Herein, black phosphorus has the potential to be used in detector/sensors, solar energy harvesting, photocatalysts, optical saturable absorbers in ultrafast lasers, all optical switches, optical modulation, nanomedicine and some others in the near future.
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Affiliation(s)
- Xing Chen
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, P.R. China.
| | | | - Dianyuan Fan
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, P.R. China.
| | - Han Zhang
- Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen 518060, P.R. China.
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19
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Chen J, Wang Q, Liu X, Chen X, Wang L, Yang W. Black phosphorus quantum dots as novel electrogenerated chemiluminescence emitters for the detection of Cu2+. Chem Commun (Camb) 2020; 56:4680-4683. [DOI: 10.1039/d0cc00661k] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Black phosphorus quantum dots with surface states and bandgap luminescence under NMP passivation are used for the detection of Cu2+.
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Affiliation(s)
- Jun Chen
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Qiaoe Wang
- Key Laboratory of Cosmetic
- Beijing Technology and Business University
- China National Light Industry
- Beijing 100048
- China
| | - Xuejiao Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Xu Chen
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Lianying Wang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Wensheng Yang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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20
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Zhang Q, Zhang J, Zhang L, Yang F, Li L, Dai WL. Black phosphorus quantum dots facilitate carrier separation for enhancing hydrogen production over hierarchical Cu7S4/ZnIn2S4 composites. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02278c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient charge separation of Cu7S4/ZnIn2S4 and the carrier transfer facilitator of BPQDs are responsible for the enhanced H2 production, resulting in the H2 evolution rate of 885 μmol g−1 h−1, 6.8 times higher than that of pristine ZnIn2S4.
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Affiliation(s)
- Quan Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai
- China
| | - Juhua Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai
- China
| | - Lu Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai
- China
| | - Fengli Yang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai
- China
| | - Lingfeng Li
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai
- China
| | - Wei-Lin Dai
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Fudan University
- Shanghai
- China
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21
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Wang T, Jin X, Yang J, Wu J, Yu Q, Pan Z, Shi X, Xu Y, Wu H, Wang J, He T, Zhang K, Zhou P. Oxidation-Resistant Black Phosphorus Enable Highly Ambient-Stable Ultrafast Pulse Generation at a 2 μm Tm/Ho-Doped Fiber Laser. ACS Appl Mater Interfaces 2019; 11:36854-36862. [PMID: 31535548 DOI: 10.1021/acsami.9b12415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Black phosphorus (BP) ranks among the most promising saturable absorber materials for ultrafast pulse generations at 2 μm. However, the easy-to-degrade characteristic of BP seriously limits the long-term operation of ultrafast fiber lasers and hence becomes a bottleneck for its relevant practical applications. In this paper, a modified electrochemical delamination exfoliation process was explored to produce high-performance, large-size, and oxidation-resistant BP nanosheets, where BP nanosheets in high yield with evenly coated tetra-n-butyl-ammonium organics by precisely controlling the intercalation chemistry can be obtained. A mode-locked Tm/Ho co-doped fiber laser with high temporal stability and long-term operation capability was demonstrated based on the innovatively fabricated BP saturable absorber. The self-starting mode-locking operation featuring a high signal-to-noise ratio of 58 dB and long-term stability has been verified for at least 3 weeks, which indicates the successful passivation of the employed synthesis method. These results fully indicated that passivated BP is an efficient candidate in a 2 μm range ultrafast photonic field, which will promote the ultrafast optical application of BP and also other infrared photonic and photoelectronic devices.
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Affiliation(s)
- Tao Wang
- College of Advanced Interdisciplinary Studies , National University of Defense Technology , Changsha 410073 , China
| | - Xiaoxi Jin
- College of Advanced Interdisciplinary Studies , National University of Defense Technology , Changsha 410073 , China
| | | | - Jian Wu
- College of Advanced Interdisciplinary Studies , National University of Defense Technology , Changsha 410073 , China
| | | | - Zhenghui Pan
- Department of Materials Science and Engineering , National University of Singapore , Singapore 117574 , Singapore
| | - Xinyao Shi
- School of Nano Technology and Nano Bionics , University of Science and Technology of China , Hefei 230026 , China
| | | | - Hanshuo Wu
- College of Advanced Interdisciplinary Studies , National University of Defense Technology , Changsha 410073 , China
| | - Jin Wang
- College of Advanced Interdisciplinary Studies , National University of Defense Technology , Changsha 410073 , China
| | - Tingchao He
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | | | - Pu Zhou
- College of Advanced Interdisciplinary Studies , National University of Defense Technology , Changsha 410073 , China
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Chen K, Wang Y, Liu J, Kang J, Ge Y, Huang W, Lin Z, Guo Z, Zhang Y, Zhang H. In situ preparation of a CsPbBr 3/black phosphorus heterostructure with an optimized interface and photodetector application. Nanoscale 2019; 11:16852-16859. [PMID: 31478547 DOI: 10.1039/c9nr06488e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Zero-dimensional (0D)-2D nanostructures, which combine the efficient light-harvesting properties of 0D nanocrystals (NCs) and the ultrafast carrier transfer of 2D materials, have been widely used in optoelectronic devices. Although the most common way to fabricate 0D-2D nanostructures consists of a mixing process, the limited loading efficiency of NCs and the poor 0D-2D interface hinder the efficient photo-carrier generation and fast carrier separation/transfer in such systems. Herein, the in situ synthesis of CsPbBr3/BP heterostructures via a hot-injection method was presented, revealing that both the formation process of CsPbBr3 NCs and the CsPbBr3/black phosphorous (BP) interfaces presented pronounced changes. This led to a larger CsPbBr3 NC size, higher CsPbBr3 NC loading efficiency, optimized combination of CsPbBr3 and BP at the interface, and enhanced carrier transfer properties. In addition, the in situ synthesized CsPbBr3/BP heterostructure was used as a photoactive material for the fabrication of photodetectors, which showed high detectivity (D*) of 2.6 × 1011 Jones. This work highlights a novel strategy to optimize the 0D-2D heterostructure interface and to promote its carrier transfer efficiency, broadening the field of the applications of mixed-dimensional nanostructures.
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Affiliation(s)
- Keqiang Chen
- Collaborative Innovation Centre for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
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Liu J, Li X, Xu Y, Ge Y, Wang Y, Zhang F, Wang Y, Fang Y, Yang F, Wang C, Song Y, Xu S, Fan D, Zhang H. NiPS 3 nanoflakes: a nonlinear optical material for ultrafast photonics. Nanoscale 2019; 11:14383-14391. [PMID: 31334535 DOI: 10.1039/c9nr03964c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ultrafast photonics based on two-dimensional (2D) materials has been used to investigate light-matter interactions and laser generation, as well as light propagation, modulation, and detection. Here, 2D metal-phosphorus trichalcogenides, which are known for applications in catalysis and electrochemical storage, also exhibit advantageous photonic properties as nanoflakes that are only a few layers thick. By using an open-aperture Z-scan system, few-layer NiPS3 nanoflakes exhibited a large modulation depth of 56% and a low saturable intensity of 16 GW cm-2 at 800 nm. When NiPS3 nanoflakes were used as a saturable absorber at 1066 nm, highly stable mode-locked pulses were generated. Thus, these results revealed the nonlinear optical properties of NiPS3 nanoflakes which have potential photonics applications, such as modulators, switches, and thresholding devices.
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Affiliation(s)
- Jiefeng Liu
- Collaborative Innovation Centre for Optoelectronic Science & Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
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Ye X, Liang X, Chen Q, Miao Q, Chen X, Zhang X, Mei L. Surgical Tumor-Derived Personalized Photothermal Vaccine Formulation for Cancer Immunotherapy. ACS Nano 2019; 13:2956-2968. [PMID: 30789699 DOI: 10.1021/acsnano.8b07371] [Citation(s) in RCA: 163] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Personalized cancer vaccines show great potential in cancer immunotherapy by inducing an effective and durable antitumor response. However, the limitation of neoantigen identification, low immunogenicity, and weak immune response hamper the development of personalized cancer vaccines. The surgically removed tumor contains tumor antigens specific to the patient, which provides a promising source for personalized cancer vaccines. Here, we utilized the surgically removed tumor to prepare a personalized photothermal vaccine combined with the PD-1 checkpoint blockade antibody to prevent tumor relapse and metastasis. Black phosphorus quantum dot nanovesicles (BPQD-CCNVs) coated with surgically removed tumor cell membrane were prepared and loaded into a thermosensitive hydrogel containing GM-CSF and LPS. The sustained release of GM-CSF from the hypodermic injection of Gel-BPQD-CCNVs effectively recruited dendritic cells to capture tumor antigen. NIR irradiation and LPS stimulated the expansion and activation of DCs, which then traveled to the lymph nodes to present antigen to CD8+ T cells. Moreover, the combination with PD-1 antibody significantly enhanced tumor-specific CD8+ T cell elimination of the surgical residual and lung metastatic tumor. Hence, our work may provide a promising strategy for the clinical development of a personalized cancer vaccine.
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Affiliation(s)
- Xinyu Ye
- School of Pharmaceutical Sciences (Shenzhen) , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
- School of Life Sciences , Tsinghua University , Beijing 100084 , P. R. China
- Graduate School at Shenzhen , Tsinghua University , Shenzhen 518055 , P. R. China
| | - Xin Liang
- School of Pharmaceutical Sciences (Shenzhen) , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
| | - Qian Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices , Soochow University , Suzhou , 215123 , P. R. China
| | - Qianwei Miao
- School of Life Science , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Xiuli Chen
- School of Life Sciences , Tsinghua University , Beijing 100084 , P. R. China
- Graduate School at Shenzhen , Tsinghua University , Shenzhen 518055 , P. R. China
| | - Xudong Zhang
- School of Pharmaceutical Sciences (Shenzhen) , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
- School of Medicine (Shenzhen) , Sun Yat-sen University , Guangzhou 510080 , China
| | - Lin Mei
- School of Pharmaceutical Sciences (Shenzhen) , Sun Yat-Sen University , Guangzhou 510275 , P. R. China
- Graduate School at Shenzhen , Tsinghua University , Shenzhen 518055 , P. R. China
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25
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Jia Y, Liao Y, Wu L, Shan Y, Dai X, Cai H, Xiang Y, Fan D. Nonlinear optical response, all optical switching, and all optical information conversion in NbSe 2 nanosheets based on spatial self-phase modulation. Nanoscale 2019; 11:4515-4522. [PMID: 30806401 DOI: 10.1039/c8nr08966c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An efficient liquid phase exfoliation method has been developed for the preparation of high quality NbSe2 nanosheets. The pure nonlinear optical properties of these nanosheets have been investigated using three different wavelength continuous wave (CW) lasers. The spatial self-phase modulation (SSPM) effect can be observed clearly in solution dispersions of (NbSe2). The experimental data show that the diffraction is caused by the third-order optical nonlinearity of NbSe2. The third-order nonlinearity susceptibility χ(3) of NbSe2 is about 10-9 e.s.u. by analyzing the experimental results. The relaxation time in the dynamic relaxation is about 1.38 s, 1.58 s, and 1.15 s for 532 nm, 671 nm, and 457 nm, respectively. In addition, the realization of all-optical switching based on SSPM, particularly two-color intrachromatic coherence, indicates that the generation of electron coherence is a universal characteristic of layered quantum materials. All optical information conversion based on the SSPM is also confirmed experimentally. Our experimental results have simple potential application prospects for NbSe2 based on its nonlinear optical response.
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Affiliation(s)
- Yue Jia
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
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Cao Y, Zhang B, Tian X, Gu M, Chen Y. Direct covalent modification of black phosphorus quantum dots with conjugated polymers for information storage. Nanoscale 2019; 11:3527-3533. [PMID: 30747199 DOI: 10.1039/c8nr09711a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It has long been recognized that a small switching bias window, which is defined as the difference between the switch-on and switch-off voltages (Δ|VON - VOFF|), and a high ON/OFF current ratio would be greatly favorable to reduce the power consumption of memory devices and to decrease the information misreading rate in digital memory devices. In contrast to two-dimensional BP nanosheets, zero dimensional BP quantum dots (BPQDs) show more exciting physical and chemical properties. By using newly synthesized poly[(9,9-dioctyl-9H-fluorene)-alt-(4-(9H-carbazol-9-yl)aniline)] (PFCz-NH2) as the synthetic precursor, a highly soluble diazotated polymer, PFCz-N2+BF4-, was successfully synthesized and used to react with BPQDs under aqueous conditions to give the first conjugated polymer covalently functionalized BPQDs (PFCz-g-BPQDs). The as-prepared Al/PFCz-g-BPQDs/ITO device exhibits excellent nonvolatile rewritable memory performance, with a large ON/OFF current ratio (>107) and low switch-on/off voltages (-0.89/+1.95 V). In contrast, the Al/PFCz-NH2 : BPQDs blend/ITO device also shows a rewritable memory effect, but its ON/OFF current ratio and Δ|VON - VOFF| value are found to be 3 × 103 and 5.47 (Δ|+2.53-2.94|), respectively. This work, which offers an easy one-step strategy for direct covalent functionalization of BPQDs, opens a way to explore more applications of BPQDs.
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Affiliation(s)
- Yaming Cao
- Key Laboratory for Advanced Materials, Institute of Applied Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
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Abstract
The Nobel Prize in Physics 2018, “For groundbreaking inventions in the field of laser physics”, went to Arthur Ashkin and Gérard Mourou and Donna Strickland. Their inventions have revolutionized laser physics and greatly promoted the development of laser instruments, which have penetrated into many aspects of people’s daily lives. However, for the purpose of protecting human eyes or optical instruments from being damaged by both pulsed and continuous wave laser radiation, the research on laser protective materials is of particular significance. Due to the intriguing and outstanding physical, chemical, and structural properties, two-dimensional (2D) nanomaterials have been extensively studied as optical limiting (OL) materials owing to their broadband nonlinear optical (NLO) response and fast carrier relaxation dynamics that are important for reducing the laser intensity. This review systematically describes the OL mechanisms and the recent progress in 2D nanomaterials for laser protection.
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Xue T, Liang W, Li Y, Sun Y, Xiang Y, Zhang Y, Dai Z, Duo Y, Wu L, Qi K, Shivananju BN, Zhang L, Cui X, Zhang H, Bao Q. Ultrasensitive detection of miRNA with an antimonene-based surface plasmon resonance sensor. Nat Commun 2019; 10:28. [PMID: 30604756 DOI: 10.1038/s41467-018-07947-8] [Citation(s) in RCA: 267] [Impact Index Per Article: 53.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 12/04/2018] [Indexed: 02/07/2023] Open
Abstract
MicroRNA exhibits differential expression levels in cancer and can affect cellular transformation, carcinogenesis and metastasis. Although fluorescence techniques using dye molecule labels have been studied, label-free molecular-level quantification of miRNA is extremely challenging. We developed a surface plasmon resonance sensor based on two-dimensional nanomaterial of antimonene for the specific label-free detection of clinically relevant biomarkers such as miRNA-21 and miRNA-155. First-principles energetic calculations reveal that antimonene has substantially stronger interaction with ssDNA than the graphene that has been previously used in DNA molecule sensing, due to thanking for more delocalized 5s/5p orbitals in antimonene. The detection limit can reach 10 aM, which is 2.3–10,000 times higher than those of existing miRNA sensors. The combination of not-attempted-before exotic sensing material and SPR architecture represents an approach to unlocking the ultrasensitive detection of miRNA and DNA and provides a promising avenue for the early diagnosis, staging, and monitoring of cancer. Label-free molecular-level quantification of MicroRNA (miRNA) remains challenging. Here, the authors develop a new surface plasmon resonance sensor based on two-dimensional nanomaterial of antimonene for the specific label-free detection of clinically relevant biomarkers such as miRNA-21 and miRNA-155.
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Abstract
Ultrathin vanadium-doped MoS2 nanosheets are achieved via a simple thermolytic method, which exhibit enhanced catalytic ability for ORR catalysis.
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Affiliation(s)
- Tianyu He
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University
- Xi’an 710062
- P. R. China
| | - Ling Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University
- Xi’an 710062
- P. R. China
| | - Ying Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Hao Huang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University
- Xi'an 710062
- P. R. China
| | - Huan Jiao
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University
- Xi’an 710062
- P. R. China
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Wang G, Xiao S, Peng Y, Wang Y, Yuan C, He J. Two-photon and three-photon absorption in ZnO nanocrystals embedded in Al 2O 3 matrix influenced by defect states. Opt Lett 2019; 44:179-182. [PMID: 30645579 DOI: 10.1364/ol.44.000179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
The broadband nonlinear absorption in ZnO nanocrystals embedded in Al2O3 matrix was investigated by Z-scan and pump-probe techniques from 400 nm to 800 nm. The effective two-photon absorption and three-photon absorption coefficients were determined to be ∼1.1×103 cm/GW at 400 nm and ∼1.1×10-1 cm3/GW2 at 800 nm, respectively, which are at least two orders of magnitude greater than that in ZnO bulk crystal. It may be attributed to the defect-states-mediated multiphoton absorption process, which was proofed by comparison experiments with different densities of interfacial defect states. The corresponding lifetimes for the intraband relaxation, defect-states trapping, and interband recombination processes were measured by femtosecond transient absorption measurements as τ1 ∼ 1 ps, τ2 ∼ 13 ps, and τ3 ∼ 350 ps, respectively.
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Long L, Niu X, Yan K, Zhou G, Wang J, Wu X, Chu PK. Highly Fluorescent and Stable Black Phosphorus Quantum Dots in Water. Small 2018; 14:e1803132. [PMID: 30307702 DOI: 10.1002/smll.201803132] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/10/2018] [Indexed: 05/16/2023]
Abstract
Although 2D black phosphorus (BP) shows excellent optical and electronic properties, there are few reports on the photoluminescence (PL) properties of BP nanostructures because of the low yield of mechanical exfoliation, instability in water, and relatively weak emission. Herein, liquid exfoliation is combined with surface passivation to produce fluorescent BP quantum dots (BPQDs) with a high yield. The BPQDs exhibit strong PL in both ethanol and water and the absolute fluorescent quantum yield in water reaches 70%. Moreover, the BPQD solution exhibits stable PL for 150 d under ambient conditions and better photostability than conventional organic dyes and heavy-metal semiconducting nanostructures with intense fluorescence. The experiments and theoretical calculation reveal that the intense and stable PL originates from the intrinsic band-to-band excitation states and two surface states related to the POH and POCH2 CH3 bonding structures introduced by passivation. The polar water molecules remove many nonradiative centers and simultaneously increase the P-related fluorescent groups on the surface of BPQDs. Therefore, PL from the BPQDs in water is enhanced largely. The excellent fluorescent properties of BPQDs in an aqueous solution bode well for bioimaging and the negligible biotoxicity and distinct cell images suggest large potential in the biomedical and display fields.
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Affiliation(s)
- Liyuan Long
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P. R. China
| | - Xianghong Niu
- School of Physics, Southeast University, Nanjing, 211189, P. R. China
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210046, P. R. China
| | - Kun Yan
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P. R. China
| | - Gang Zhou
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P. R. China
| | - Jinlan Wang
- School of Physics, Southeast University, Nanjing, 211189, P. R. China
| | - Xinglong Wu
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P. R. China
| | - Paul K Chu
- Department of Physics and Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, 999077, Hong Kong, China
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Wilma K, Shu CC, Scherf U, Hildner R. Visualizing Hidden Ultrafast Processes in Individual Molecules by Single-Pulse Coherent Control. J Am Chem Soc 2018; 140:15329-15335. [DOI: 10.1021/jacs.8b08674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kevin Wilma
- Soft Matter Spectroscopy, University of Bayreuth, 95440 Bayreuth, Germany
| | - Chuan-Cun Shu
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China
- School of Engineering and Information Technology, University of New South Wales, Canberra, Australian Capital Territory 2600, Australia
| | - Ullrich Scherf
- Fachbereich C − Mathematik und Naturwissenschaften and Institut für Polymertechnologie, Universität Wuppertal, 42097 Wuppertal, Germany
| | - Richard Hildner
- Soft Matter Spectroscopy, University of Bayreuth, 95440 Bayreuth, Germany
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Liu B, Long M, Cai MQ, Yang J. Two-Dimensional van der Waals Heterostructures Constructed via Perovskite (C 4H 9NH 3) 2XBr 4 and Black Phosphorus. J Phys Chem Lett 2018; 9:4822-4827. [PMID: 30091614 DOI: 10.1021/acs.jpclett.8b02078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Heterogeneous stacking of two-dimensional (2D) perovskites with other 2D materials is a very effective strategy for designing low-cost and high-performance photovoltaic and optoelectronic devices. The structural, electronic, and optical properties of distinctive all-2D M2XBr4-black phosphorus (BP) [M = (C4H9NH3)+; X = Pb2+, Sn2+, Ge2+] van der Waals (vdW) heterostructures have been studied by first-principle calculations. The M2SnBr4-BP and M2GeBr4-BP heterostructures show type-II band arrangement; however, the M2PbBr4-BP heterostructure exhibits type-I band arrangement. The energy level shift is ascribed to the difference of work function between M2XBr4 monolayer and BP monolayer, driving the movement of carriers spontaneously. Furthermore, the BP layers can enhance the light absorption of the total heterostructures, especially the M2GeBr4-BP heterostructure. These results indicate the all-2D perovskite and BP vdW heterostructures are competitive candidates for low-dimensional photovoltaic and optoelectronic applications.
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Affiliation(s)
- Biao Liu
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics , Central South University , Changsha 410083 , Hunan , China
| | - Mengqiu Long
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics , Central South University , Changsha 410083 , Hunan , China
| | - Meng-Qiu Cai
- School of Physics and Electronics Science , Hunan University , Changsha 410082 , Hunan , China
- Synergetic Innovation Center for Quantum Effects and Applications (SICQEA) , Hunan Normal University , Changsha 410081 , Hunan , China
| | - Junliang Yang
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics , Central South University , Changsha 410083 , Hunan , China
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Tang X, Chen H, Ponraj JS, Dhanabalan SC, Xiao Q, Fan D, Zhang H. Fluorination-Enhanced Ambient Stability and Electronic Tolerance of Black Phosphorus Quantum Dots. Adv Sci (Weinh) 2018; 5:1800420. [PMID: 30250790 PMCID: PMC6145272 DOI: 10.1002/advs.201800420] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/21/2018] [Indexed: 05/21/2023]
Abstract
The environmental instability and uneliminable electronic trap states in black phosphorus quantum dots (BPQDs) limit the optoelectronics and related applications of BPQDs. Here, fluorinated BPQDs (F-BPQDs) are successfully synthesized by using a facile electrochemical exfoliation and synchronous fluorination method. The F-BPQDs exhibit robust ambient stability and limited fluorination capability, showing a nonstoichiometric fluorination degree (DF) maximum of ≈0.68. Density functional theory calculations confirm that due to the edge etching effect of fluorine adatoms, the simulated F-BPQDs become structurally unstable when DF surpasses the limit. Furthermore, the trap states of BPQDs can be effectively eliminated via fluorination to obtain a coordination number of 3 or 5 for fluorinated and unfluorinated phosphorus atoms. The results reveal that the air-stable F-BPQDs exhibit fluorine defect-enhanced electronic tolerance, which is crucial for nanophotonics and nanoelectronics applications.
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Affiliation(s)
- Xian Tang
- Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsCollaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhen518060China
- School of Materials Science and Energy EngineeringFoshan UniversityFoshan528000China
| | - Hong Chen
- School of Materials Science and Energy EngineeringFoshan UniversityFoshan528000China
| | - Joice Sophia Ponraj
- Department of Nanoscience and TechnologyBharathiar UniversityCoimbatore641046India
| | - Sathish Chander Dhanabalan
- Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsCollaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhen518060China
| | - Quanlan Xiao
- Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsCollaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhen518060China
| | - Dianyuan Fan
- Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsCollaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhen518060China
| | - Han Zhang
- Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsCollaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhen518060China
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35
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Zhang M, Wang W, Wu F, Graveran K, Zhang J, Wu C. Black Phosphorus Quantum Dots Gated, Carbon-Coated Fe3
O4
Nanocapsules (BPQDs@ss-Fe3
O4
@C) with Low Premature Release Could Enable Imaging-Guided Cancer Combination Therapy. Chemistry 2018; 24:12890-12901. [DOI: 10.1002/chem.201801085] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/17/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Ming Zhang
- Danish Institute for Advanced Study and; Department of Physics, Chemistry and Pharmacy; University of Southern Denmark; Odense 5230 Denmark
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials; Jiangsu Key Laboratory of Bio-functional Materials; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 China
- Department of Biological Sciences; Florida International University; Miami FL 33199 USA
| | - Wentao Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing, Jiangsu 210023 China
| | - Fan Wu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials; Jiangsu Key Laboratory of Bio-functional Materials; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 China
| | - Kathleen Graveran
- Department of Biological Sciences; Florida International University; Miami FL 33199 USA
| | - Jun Zhang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials; Jiangsu Key Laboratory of Bio-functional Materials; School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 China
| | - Changzhu Wu
- Danish Institute for Advanced Study and; Department of Physics, Chemistry and Pharmacy; University of Southern Denmark; Odense 5230 Denmark
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36
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Jiang Y, Ma Y, Fan Z, Wang P, Li X, Wang Y, Zhang Y, Shen J, Wang G, Yang ZJ, Xiao S, Gao Y, He J. Abnormal nonlinear optical properties of hybrid graphene-TiO 2 nanostructures. Opt Lett 2018; 43:523-526. [PMID: 29400831 DOI: 10.1364/ol.43.000523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 12/27/2017] [Indexed: 06/07/2023]
Abstract
The nonlinear optical (NLO) properties of graphene-TiO2 nanoparticle (GNP) composite and graphene-TiO2 nanowire composite (GNW) are investigated by spatial self-phase modulation (SSPM) and Z-scan. The SSPM results of the GNP and GNW show that they possess strong self-diffraction effects at 1100 nm and no signal at 700 nm, which is different from all previous reports of other two-dimensional materials. A possible mechanism is that NLO behaviors are dominated by TiO2 at the visible wavelength, while by graphene at a near-infrared wavelength. The Z-scan results of the GNP and GNW show reverse saturable absorption (RSA) at 700 nm, but saturable absorption (SA) at 1100 nm. Our results demonstrate that, by choosing appropriate coupling, we could design two-dimensional materials that have specific NLO properties at particular wavelengths.
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37
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Abstract
This review critically summarizes recent progress in the categories, synthetic routes, properties, functionalization and applications of 2D materials-based quantum dots (QDs).
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Affiliation(s)
- Yuanhong Xu
- College of Life Sciences
- Laboratory of Fiber Materials and Modern Textiles
- the Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Xiaoxia Wang
- College of Life Sciences
- Laboratory of Fiber Materials and Modern Textiles
- the Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Wen Ling Zhang
- College of Life Sciences
- Laboratory of Fiber Materials and Modern Textiles
- the Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Fan Lv
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- China
| | - Shaojun Guo
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- China
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38
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Abstract
This review article provides the first systematic summary of zero-dimensional black phosphorus quantum dots, from their synthetic methods, properties, and functionalized modification to their applications.
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Affiliation(s)
- Rijun Gui
- College of Chemistry and Chemical Engineering
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- Laboratory of Fiber Materials and Modern Textile
- The Growing Base for State Key Laboratory
- Qingdao University
| | - Hui Jin
- College of Chemistry and Chemical Engineering
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- Laboratory of Fiber Materials and Modern Textile
- The Growing Base for State Key Laboratory
- Qingdao University
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- Laboratory of Fiber Materials and Modern Textile
- The Growing Base for State Key Laboratory
- Qingdao University
| | - Jinghong Li
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology
- Tsinghua University
- Beijing 100084
- China
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39
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Yuan YJ, Yang S, Wang P, Yang Y, Li Z, Chen D, Yu ZT, Zou ZG. Bandgap-tunable black phosphorus quantum dots: visible-light-active photocatalysts. Chem Commun (Camb) 2018; 54:960-963. [DOI: 10.1039/c7cc08211h] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Bandgap-tunable black phosphorus quantum dots were prepared by a liquid exfoliation method for the photocatalytic degradation of rhodamine B.
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Affiliation(s)
- Yong-Jun Yuan
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- People's Republic of China
| | - Shuhui Yang
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- People's Republic of China
| | - Pei Wang
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- People's Republic of China
| | - Yan Yang
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- People's Republic of China
| | - Zijian Li
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- People's Republic of China
| | - Daqin Chen
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- People's Republic of China
| | - Zhen-Tao Yu
- National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory for Nano Technology
- College of Engineering and Applied Science
- Nanjing University
- Nanjing 210093
| | - Zhi-Gang Zou
- National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures
- Jiangsu Key Laboratory for Nano Technology
- College of Engineering and Applied Science
- Nanjing University
- Nanjing 210093
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40
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Wang M, Liang Y, Liu Y, Ren G, Zhang Z, Wu S, Shen J. Ultrasmall black phosphorus quantum dots: synthesis, characterization, and application in cancer treatment. Analyst 2018; 143:5822-5833. [DOI: 10.1039/c8an01612g] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We synthesized black phosphorus quantum dots with good fluorescence performance and excellent biocompatibility, and highlighted their great potential in the photothermal therapy of cancer.
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Affiliation(s)
- Mingqian Wang
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Ying Liang
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Yajun Liu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Guohong Ren
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Zhicheng Zhang
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Shishan Wu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Jian Shen
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
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41
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Yin K, Du H, Dong X, Wang C, Duan JA, He J. A simple way to achieve bioinspired hybrid wettability surface with micro/nanopatterns for efficient fog collection. Nanoscale 2017; 9:14620-14626. [PMID: 28936519 DOI: 10.1039/c7nr05683d] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Fog collection is receiving increasing attention for providing water in semi-arid deserts and inland areas. Inspired by the fog harvesting ability of the hydrophobic-hydrophilic surface of Namib desert beetles, we present a simple, low-cost method to prepare a hybrid superhydrophobic-hydrophilic surface. The surface contains micro/nanopatterns, and is prepared by incorporating femtosecond-laser fabricated polytetrafluoroethylene nanoparticles deposited on superhydrophobic copper mesh with a pristine hydrophilic copper sheet. The as-prepared surface exhibits enhanced fog collection efficiency compared with uniform (super)hydrophobic or (super)hydrophilic surfaces. This enhancement can be tuned by controlling the mesh number, inclination angle, and fabrication structure. Moreover, the surface shows excellent anti-corrosion ability after immersing in 1 M HCl, 1 M NaOH, and 10 wt% NaCl solutions for 2 hours. This work may provide insight into fabricating hybrid superhydrophobic-hydrophilic surfaces for efficient atmospheric water collection.
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Affiliation(s)
- Kai Yin
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China.
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42
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Miao X, Xuan N, Liu Q, Wu W, Liu H, Sun Z, Ji M. Optimizing Nonlinear Optical Visibility of Two-Dimensional Materials. ACS Appl Mater Interfaces 2017; 9:34448-34455. [PMID: 28905621 DOI: 10.1021/acsami.7b09807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two-dimensional (2D) materials have attracted broad research interests across various nonlinear optical (NLO) studies, including nonlinear photoluminescence (NPL), second harmonic generation (SHG), transient absorption (TA), and so forth. These studies have unveiled important features and information of 2D materials, such as in grain boundaries, defects, and crystal orientations. However, as most research studies focused on the intrinsic NLO processes, little attention has been paid to the substrates underneath. Here, we discovered that the NLO signal depends significantly on the thickness of SiO2 in SiO2/Si substrates. A 40-fold enhancement of the NPL signal of graphene was observed when the SiO2 thickness was varied from 270 to 125 nm under 800 nm excitation. We systematically studied the NPL intensity of graphene on three different SiO2 thicknesses within a pump wavelength range of 800-1100 nm. The results agreed with a numerical model based on back reflection and interference. Furthermore, we have extended our measurements to include TA and SHG of graphene and MoS2, confirming that SiO2 thickness has similar effects on all of the three major types of NLO signals. Our results will serve as an important guidance for choosing the optimum substrates to conduct NLO research studies on 2D materials.
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Affiliation(s)
- Xianchong Miao
- Collaborative Innovation Center of Advanced Microstructure , Nanjing 210093, China
| | | | - Qi Liu
- Collaborative Innovation Center of Advanced Microstructure , Nanjing 210093, China
| | - Weishu Wu
- Collaborative Innovation Center of Advanced Microstructure , Nanjing 210093, China
| | | | | | - Minbiao Ji
- Collaborative Innovation Center of Advanced Microstructure , Nanjing 210093, China
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43
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Yin K, Chu D, Dong X, Wang C, Duan JA, He J. Femtosecond laser induced robust periodic nanoripple structured mesh for highly efficient oil-water separation. Nanoscale 2017; 9:14229-14235. [PMID: 28914319 DOI: 10.1039/c7nr04582d] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Marine oil spills have induced severe water pollution and threatened sea ecosystems, which also result in a loss of energy resources. To deal with this problem, much work has been done for using superhydrophobic or superhydrophilic mesh for oil-water separation. Nevertheless, there are still great challenges in the rapid fabrication of extremely durable mesh with superwetting properties, particularly considering the highly efficient oil-water separation. In this study, we present a simple, efficient method to fabricate superhydrophilic and underwater superoleophobic stainless steel mesh surfaces with one-step femtosecond laser induced periodic nanoripple structures. The as-prepared mesh shows high separation efficiency, which is higher than 99% for various oil-water mixtures. More importantly, the wettability and the separation efficiency of the fabricated mesh show no obvious change after the abrasion tests and corrosion tests, indicating that the as-prepared samples possess robust stability. This study provides an efficient route for constructing durable and highly efficient separation mesh, which can be applied in the cleanup of large-scale oil spills in the near future.
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Affiliation(s)
- Kai Yin
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, 410083, China.
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44
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Jiang J, Guo J, Wan X, Yang Y, Xie H, Niu D, Yang J, He J, Gao Y, Wan Q. 2D MoS 2 Neuromorphic Devices for Brain-Like Computational Systems. Small 2017; 13:1700933. [PMID: 28561996 DOI: 10.1002/smll.201700933] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 04/18/2017] [Indexed: 06/07/2023]
Abstract
Hardware implementation of artificial synapses/neurons with 2D solid-state devices is of great significance for nanoscale brain-like computational systems. Here, 2D MoS2 synaptic/neuronal transistors are fabricated by using poly(vinyl alcohol) as the laterally coupled, proton-conducting electrolytes. Fundamental synaptic functions, such as an excitatory postsynaptic current, paired-pulse facilitation, and a dynamic filter for information transmission of biological synapse, are successfully emulated. Most importantly, with multiple input gates and one modulatory gate, spiking-dependent logic operation/modulation, multiplicative neural coding, and neuronal gain modulation are also experimentally demonstrated. The results indicate that the intriguing 2D MoS2 transistors are also very promising for the next-generation of nanoscale neuromorphic device applications.
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Affiliation(s)
- Jie Jiang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China
| | - Junjie Guo
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China
| | - Xiang Wan
- School of Electronic Science and Engineering and Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Yi Yang
- School of Electronic Science and Engineering and Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Haipeng Xie
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China
| | - Dongmei Niu
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China
| | - Junliang Yang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China
| | - Jun He
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China
| | - Yongli Gao
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, China
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, 14627, USA
| | - Qing Wan
- School of Electronic Science and Engineering and Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
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45
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Li X, Liu R, Xie H, Zhang Y, Lyu B, Wang P, Wang J, Fan Q, Ma Y, Tao S, Xiao S, Yu X, Gao Y, He J. Tri-phase all-optical switching and broadband nonlinear optical response in Bi 2Se 3 nanosheets. Opt Express 2017; 25:18346-18354. [PMID: 28789321 DOI: 10.1364/oe.25.018346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
This paper describes the tri-phase all-optical switching and broadband nonlinear optical response in Bi2Se3 nanosheets. Using Bi2Se3 nanosheets dispersion solution as the sample, the spatial phase of controlled light can be modulated as three phases (unchanging, focusing, diffraction) by changing the incident intensity of controlling light. The mechanism is conjectured that the controlling light changes the phase distribution of overlapping region and then modulates the phase distribution of the controlled light. Based on Gerchberg-Saxton algorithm, the phase distribution of the controlling light and controlled light is retrieved from the transmitted patterns. In dynamic spatial self-phase modulation (SSPM) experiment, the three processes including self-focusing, self-diffraction ring formation, and self-diffraction ring deformation can also be observed. In addition, the SSPM of controlling light is measured at the typical wavelengths from 350 nm to 1160 nm, which demonstrates that this all-optical switching is available in broadband. These results provide the great potential of Bi2Se3 as an all-optical switching for various optoelectronic applications.
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46
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Zhang Y, Zheng Y, Rui K, Hng HH, Hippalgaonkar K, Xu J, Sun W, Zhu J, Yan Q, Huang W. 2D Black Phosphorus for Energy Storage and Thermoelectric Applications. Small 2017; 13:1700661. [PMID: 28594444 DOI: 10.1002/smll.201700661] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 03/20/2017] [Indexed: 05/21/2023]
Abstract
Recent progress in the currently available methods of producing black phosphorus bulk and phosphorene are presented. The effective passivation approaches toward improving the air stability of phosphorene are also discussed. Furthermore, the research efforts on the phosphorene and phosphorene-based materials for potential applications in lithium ion batteries, sodium ion batteries, and thermoelectric devices are summarized and highlighted. Finally, the outlook including challenges and opportunities in these research fields are discussed.
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Affiliation(s)
- Yu Zhang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- Energy Research Institute (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Yun Zheng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Kun Rui
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 2100, Nanjing, China
| | - Huey Hoon Hng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Kedar Hippalgaonkar
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore
| | - Jianwei Xu
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore
| | - Wenping Sun
- Institute for Superconducting and Electronic Materials, Australian Institute for, Innovative Materials, University of Wollongong, NSW, 2522, Australia
| | - Jixin Zhu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 2100, Nanjing, China
| | - Qingyu Yan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- Energy Research Institute (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 2100, Nanjing, China
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