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Ivanova A, Luchnikov L, Muratov DS, Golikova M, Saranin D, Khanina A, Gostishchev P, Khovaylo V. Stabilization of lead-free bulk CsSnI 3 perovskite thermoelectrics via incorporation of TiS 3 nanoribbon clusters. Dalton Trans 2025; 54:7325-7332. [PMID: 40208223 DOI: 10.1039/d5dt00326a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2025]
Abstract
The intense research for efficient low-temperature thermoelectric materials drives the exploration of innovative compounds and composite systems. This study investigates the effects of integrating low-dimensional titanium trisulfide (TiS3) into bulk tin-based halide perovskites (CsSnI3) for thermoelectric applications. The incorporation of small amounts of two-dimensional titanium trisulfide (TiS3) into CsSnI3 not only significantly enhanced the structural stability of the composite material and suppressed oxidation processes but also ensured that its initial electrical properties, including conductivity and the Seebeck coefficient, remained stable for at least 24 hours-unlike the pristine CsSnI3 sample. These findings emphasize the potential of low-dimensional TiS3 as an effective additive for stabilizing the thermoelectric performance of CsSnI3-based materials over time.
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Affiliation(s)
- Alexandra Ivanova
- National University of Science and Technology MISIS (NUST MISIS), Leninsky Av. 4, Moscow, 119049, Russia.
| | - Lev Luchnikov
- National University of Science and Technology MISIS (NUST MISIS), Leninsky Av. 4, Moscow, 119049, Russia.
| | - Dmitry S Muratov
- Chemistry Department, University of Turin, 10125, via Pietro Giuria 5, Turin, Italy
| | - Margarita Golikova
- National University of Science and Technology MISIS (NUST MISIS), Leninsky Av. 4, Moscow, 119049, Russia.
| | - Danila Saranin
- National University of Science and Technology MISIS (NUST MISIS), Leninsky Av. 4, Moscow, 119049, Russia.
| | - Aleksandra Khanina
- National University of Science and Technology MISIS (NUST MISIS), Leninsky Av. 4, Moscow, 119049, Russia.
| | - Pavel Gostishchev
- National University of Science and Technology MISIS (NUST MISIS), Leninsky Av. 4, Moscow, 119049, Russia.
| | - Vladimir Khovaylo
- National University of Science and Technology MISIS (NUST MISIS), Leninsky Av. 4, Moscow, 119049, Russia.
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Kirsch C, Naujoks T, Haizmann P, Frech P, Peisert H, Chassé T, Brütting W, Scheele M. Zwitterionic Carbazole Ligands Enhance the Stability and Performance of Perovskite Nanocrystals in Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37367642 DOI: 10.1021/acsami.3c05756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
We introduce a new carbazole-based zwitterionic ligand (DCzGPC) synthesized via Yamaguchi esterification which enhances the efficiency of lead halide perovskite (LHP) nanocrystals (NCs) in light-emitting diodes (LED). A facile ligand exchange of the native ligand shell, monitored by nuclear magnetic resonance (NMR), ultraviolet-visible (UV-vis), and photoluminescence (PL) spectroscopy, enables more stable and efficient LHP NCs. The improved stability is demonstrated in solution and solid-state LEDs, where the NCs exhibit prolonged luminescence lifetimes and improved luminance, respectively. These results represent a promising strategy to enhance the stability of LHP NCs and to tune their optoelectronic properties for further application in LEDs or solar cells.
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Affiliation(s)
- Christopher Kirsch
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen, 72076 Tübingen, Germany
| | - Tassilo Naujoks
- Institut für Physik, Universität Augsburg, Augsburg 86135, Germany
| | - Philipp Haizmann
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen, 72076 Tübingen, Germany
| | - Philipp Frech
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen, 72076 Tübingen, Germany
| | - Heiko Peisert
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen, 72076 Tübingen, Germany
| | - Thomas Chassé
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen, 72076 Tübingen, Germany
| | | | - Marcus Scheele
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen, 72076 Tübingen, Germany
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Zheng Y, Fang Z, Shang M, Sun Q, Hou X, Yang W. Are formation and adsorption energies enough to evaluate the stability of surface-passivated tin-based halide perovskites? MATERIALS HORIZONS 2023. [PMID: 37144424 DOI: 10.1039/d3mh00221g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Surface passivation is one of the effective and widely-used strategies to enhance the stability of halide perovskites with reduced surface defects and suppressed hysteresis. Among all existing reports, the formation and adsorption energies are popularly used as the decisive descriptors for screening passivators. Here, we propose that the often-ignored local surface structure should be another critically important factor governing the stability of tin-based perovskites after surface passivation, but has no detrimental effect on the stability of lead-based perovskites. It is verified that poor surface structure stability and deformation of the chemical bonding framework of Sn-I caused by surface passivation are ascribed to the weakened Sn-I bond strength and facilitated formation of surface iodine vacancy (VI). Therefore, the surface structure stability represented by the formation energy of VI and Sn-I bond strength should be used to accurately screen preferred surface passivators of tin-based perovskites.
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Affiliation(s)
- Yapeng Zheng
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo City, 315211, P. R. China.
- Innovation Research Institute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
| | - Zhi Fang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo City, 315211, P. R. China.
| | - Minghui Shang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo City, 315211, P. R. China.
| | - Qian Sun
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo City, 315211, P. R. China.
- Innovation Research Institute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
| | - Xinmei Hou
- Innovation Research Institute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
| | - Weiyou Yang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo City, 315211, P. R. China.
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Chen F, Li C, Shang C, Wang K, Huang Q, Zhao Q, Zhu H, Ding J. Ultrafast Response of Centimeter Scale Thin CsPbBr 3 Single Crystal Film Photodetector for Optical Communication. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203565. [PMID: 36156855 DOI: 10.1002/smll.202203565] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/01/2022] [Indexed: 06/16/2023]
Abstract
The photodetector (PD) is the key component to realize efficient optoelectronic conversion signal in the visible light communication (VLC) system. The response speed directly determines the bandwidth of the whole system. Metal halide perovskite is a neotype of low-cost solution processing semiconductor, with strong optical absorption, low trap density, and high carrier mobility, thus has been widely explored in photoelectric detection applications. However, previously reported perovskite polycrystalline photodetectors exhibit limited response speed due to the existence of grain boundaries. Here, an improved confined space method is developed through adjusting the heating area to control nucleation, resulting in centimeter scale fully inorganic perovskite CsPbBr3 thin single crystal films (SCFs) (<40 µm). The smooth surface and high crystallinity of CsPbBr3 SCFs render admirable exciton lifetime. The planar metal-semiconductor-metal photodetector using CsPbBr3 SCF as the photosensitive layer demonstrates a limit response time of 200/300 ns and a VLC within 100-500 kHz frequency for both 365 nm and white light, which is superior to previously reported CsPbBr3 polycrystalline film and single crystal photodetectors.
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Affiliation(s)
- Feitong Chen
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Changqian Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Chenyu Shang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Kaiyu Wang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Qi Huang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Qiqi Zhao
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Huiling Zhu
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
| | - Jianxu Ding
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, P. R. China
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Hu W, Si F, Yang Y, Xue H, Li W, Hu J, Tang F. Unveiling passivation roles of PEA+ in CsPbI2Br surface. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Li M, Li J, Zhang X, Wu D, Li M, Long M. Effects of conjugated structure on electronic and transport properties in organic-inorganic hybrid superlattices Cd 2Se 2(C 2H 4N 2) 1/2. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:295501. [PMID: 35504273 DOI: 10.1088/1361-648x/ac6c6a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 05/03/2022] [Indexed: 06/14/2023]
Abstract
By inducingπ-conjugated organic molecule C2H4N2in group II-VI based CdSe network structure materials, the band structures and carrier transport of organic-inorganic hybrid superlattices Cd2Se2(C2H4N2)1/2were investigated via first-principles calculations based on the density functional theory. With different stacking patterns, it is found that the carrier mobility can be modulated by 5-6 orders of magnitude. The physical mechanism of the high carrier mobility in the hybrid structures has been revealed, which means dipole organic layers realize electron delocalization via electrostatic potential difference and build-in electric field. Our calculations shown that the dipole organic layers originate from asymmetricπ-conjugated organic molecules and the charges movement between molecules, while symmetric organic molecules tend to electrostatic balance. And although the electronic transport properties were highly restrained by the flat bands of organic layers around Fermi energy in most structures, we found that the collective electrostatic effect can lead to very high electron mobility in AA1 and AA2 stacking systems, which might be attributed to the superposition of molecule electrostatic potential along with electrons transfer between molecules. Furthermore, it is also found that the anisotropy of electron mobility can be modulated via the difference directions of dipole layers.
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Affiliation(s)
- Mingming Li
- Hunan Key laboratory of Super Micro-Structure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, People's Republic of China
| | - Jialin Li
- Hunan Key laboratory of Super Micro-Structure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, People's Republic of China
| | - Xiaojiao Zhang
- Department of Applied Physics, School of Microelectronics and Physics, Hunan University of Technology and Business, Changsha 410205, People's Republic of China
| | - Di Wu
- Hunan Key laboratory of Super Micro-Structure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, People's Republic of China
| | - Mingjun Li
- Hunan Key laboratory of Super Micro-Structure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, People's Republic of China
| | - Mengqiu Long
- Hunan Key laboratory of Super Micro-Structure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, People's Republic of China
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Jiang J, Liu F, Shen Q, Tao S. The role of sodium in stabilizing tin-lead (Sn-Pb) alloyed perovskite quantum dots. JOURNAL OF MATERIALS CHEMISTRY. A 2021; 9:12087-12098. [PMID: 34123383 PMCID: PMC8148221 DOI: 10.1039/d1ta00955a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/19/2021] [Indexed: 05/04/2023]
Abstract
Narrow-bandgap CsSn x Pb1-x I3 perovskite quantum dots (QDs) show great promise for optoelectronic applications owing to their reduced use of toxic Pb, improved phase stability, and tunable band gaps in the visible and near-infrared range. The use of small ions has been proven beneficial in enhancing the stability and photoluminescence quantum yield (PLQY) of perovskite QDs. The introduction of sodium (Na) has succeeded in boosting the PLQY of CsSn0.6Pb0.4I3 QDs. Unfortunately, the initial PLQY of the Na-doped QDs undergoes a fast degradation after one-day storage in solution, hindering their practical applications. Using density functional theory (DFT) calculations and ab initio molecular dynamics (AIMD) simulations, we study the effect of Na ions on the strength of surface bonds, defect formation energies, and the interactions between surface ligands and perovskite QDs. Our results suggest that Na ions enhance the covalent bonding of surface tin-iodine bonds and form strong ionic bonding with the neighboring iodine anions, thus suppressing the formation of I and Sn vacancies. Furthermore, Na ions also enhance the binding strength of the surface ligands with the perovskite QD surface. However, according to our AIMD simulations, the enhanced surface ligand binding is only effective on a selected surface configuration. While the position of Na ions remains intact on a CsI-terminated surface, they diffuse vigorously on an MI2-terminated surface. As a result, the positive effect of Na vanishes with time, explaining the relatively short lifetime of the experimentally obtained high PLQYs. Our results indicate that engineering the surface termination of the QDs could be the next step in maintaining the favorable effect of Na doping for a high and stable PLQY of Sn-Pb QDs.
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Affiliation(s)
- Junke Jiang
- Materials Simulation and Modelling, Department of Applied Physics, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands
- Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology Eindhoven 5600 MB The Netherlands
| | - Feng Liu
- Institute of Frontier and Interdisciplinary Science, Shandong University Qingdao 266237 P. R. China
| | - Qing Shen
- Faculty of Informatics and Engineering, The University of Electro-Communications 1-5-1 Chofugaoka Tokyo 182-8585 Japan
| | - Shuxia Tao
- Materials Simulation and Modelling, Department of Applied Physics, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands
- Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology Eindhoven 5600 MB The Netherlands
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