Author
Listed:
- Rui Su
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University)
- Zhaojian Xu
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University
Princeton University)
- Jiang Wu
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University)
- Deying Luo
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University
School of Microelectronics, Southern University of Science and Technology)
- Qin Hu
(Polymer Science and Engineering Department, University of Massachusetts
Materials Sciences Division, Lawrence Berkeley National Laboratory)
- Wenqiang Yang
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University)
- Xiaoyu Yang
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University)
- Ruopeng Zhang
(National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory)
- Hongyu Yu
(School of Microelectronics, Southern University of Science and Technology)
- Thomas P. Russell
(Polymer Science and Engineering Department, University of Massachusetts
Materials Sciences Division, Lawrence Berkeley National Laboratory)
- Qihuang Gong
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University
Collaborative Innovation Center of Extreme Optics, Shanxi University
Peking University Yangtze Delta Institute of Optoelectronics)
- Wei Zhang
(Advanced Technology Institute, University of Surrey
State Centre for International Cooperation on Designer Low-Carbon and Environmental Material (SCICDLCEM), School of Materials Science and Engineering, Zhengzhou University)
- Rui Zhu
(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University
Collaborative Innovation Center of Extreme Optics, Shanxi University
Peking University Yangtze Delta Institute of Optoelectronics)
Abstract
The performance of perovskite photovoltaics is fundamentally impeded by the presence of undesirable defects that contribute to non-radiative losses within the devices. Although mitigating these losses has been extensively reported by numerous passivation strategies, a detailed understanding of loss origins within the devices remains elusive. Here, we demonstrate that the defect capturing probability estimated by the capture cross-section is decreased by varying the dielectric response, producing the dielectric screening effect in the perovskite. The resulting perovskites also show reduced surface recombination and a weaker electron-phonon coupling. All of these boost the power conversion efficiency to 22.3% for an inverted perovskite photovoltaic device with a high open-circuit voltage of 1.25 V and a low voltage deficit of 0.37 V (a bandgap ~1.62 eV). Our results provide not only an in-depth understanding of the carrier capture processes in perovskites, but also a promising pathway for realizing highly efficient devices via dielectric regulation.
Suggested Citation
Rui Su & Zhaojian Xu & Jiang Wu & Deying Luo & Qin Hu & Wenqiang Yang & Xiaoyu Yang & Ruopeng Zhang & Hongyu Yu & Thomas P. Russell & Qihuang Gong & Wei Zhang & Rui Zhu, 2021.
"Dielectric screening in perovskite photovoltaics,"
Nature Communications, Nature, vol. 12(1), pages 1-11, December.
Handle:
RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22783-z
DOI: 10.1038/s41467-021-22783-z
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Citations
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Cited by:
- Al-Raeei, Marwan, 2021.
"Applying fractional quantum mechanics to systems with electrical screening effects,"
Chaos, Solitons & Fractals, Elsevier, vol. 150(C).
- Riga Wu & Yuan Yu & Shuo Jia & Chongjian Zhou & Oana Cojocaru-Mirédin & Matthias Wuttig, 2023.
"Strong charge carrier scattering at grain boundaries of PbTe caused by the collapse of metavalent bonding,"
Nature Communications, Nature, vol. 14(1), pages 1-8, December.
- Xinjun He & Feng Qi & Xinhui Zou & Yanxun Li & Heng Liu & Xinhui Lu & Kam Sing Wong & Alex K.-Y. Jen & Wallace C. H. Choy, 2024.
"Selenium substitution for dielectric constant improvement and hole-transfer acceleration in non-fullerene organic solar cells,"
Nature Communications, Nature, vol. 15(1), pages 1-9, December.
- Hobeom Kim & So-Min Yoo & Bin Ding & Hiroyuki Kanda & Naoyuki Shibayama & Maria A. Syzgantseva & Farzaneh Fadaei Tirani & Pascal Schouwink & Hyung Joong Yun & Byoungchul Son & Yong Ding & Beom-Soo Kim, 2024.
"Shallow-level defect passivation by 6H perovskite polytype for highly efficient and stable perovskite solar cells,"
Nature Communications, Nature, vol. 15(1), pages 1-11, December.
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