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Articles
Tailoring molecular termination for thermally stable perovskite solar cells
Xiao Zhang
1,2
Sai Ma
1,2
Jingbi You
3,4
Yang Bai
1,2
Qi Chen
1,2
Author Affiliations
Abstract
1
Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
2
Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
3
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
4
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100081, China
Interfacial engineering has made an outstanding contribution to the development of high-efficiency perovskite solar cells (PSCs). Here, we introduce an effective interface passivation strategy via methoxysilane molecules with different terminal groups. The power conversion efficiency (PCE) has increased from 20.97% to 21.97% after introducing a 3-isocyanatopropyltrimethoxy silane (IPTMS) molecule with carbonyl group, while a trimethoxy[3-(phenylamino)propyl] silane (PAPMS) molecule containing aniline group deteriorates the photovoltaic performance as a consequence of decreased open circuit voltage. The improved performance after IPTMS treatment is ascribed to the suppression of non-radiative recombination and enhancement of carrier transportation. In addition, the devices with carbonyl group modification exhibit outstanding thermal stability, which maintain 90% of its initial PCE after 1500 h exposure. This work provides a guideline for the design of passivation molecules aiming to deliver the efficiency and thermal stability simultaneously.
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Journal of Semiconductors
2021, 42(11): 112201
Editorial
Preface to the Special Issue on Perovskite Semiconductor Optoelectronic Materials and Devices
Jingbi You
1
Jiang Tang
2
Haibo Zeng
3
Jianpu Wang
4
Author Affiliations
Abstract
1
Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
2
Huazhong University of Science and Technology, Wuhan, 430074, China
3
Nanjing University of Science and Technology, Nanjing, 210094, China
4
Nanjing Tech University, Nanjing, 210009, China
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Journal of Semiconductors
2020, 41(5): 050101
RESEARCH ARTICLE
Polymer hole-transport material improving thermal stability of inorganic perovskite solar cells
Shaiqiang MU
1,2
Qiufeng YE
2,3
Xingwang ZHANG
2,3
Shihua HUANG
1,*
Jingbi YOU
2,3
作者单位
摘要
1
Physics Department, Zhejiang Normal University, Jinhua 321004, China
2
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
3
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
inorganic perovskite solar cell (PSC)
holetransport material (HTM)
stability
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Frontiers of Optoelectronics
2020, 13(3): 265
PEROVSKITE PHOTONICS
Research progress in large-area perovskite solar cells
Download:913次
Yang Zhao
1,2
Fei Ma
1,2
Feng Gao
1,2
Zhigang Yin
1,2
[ ... ]
Jingbi You
1,2,*
Author Affiliations
Abstract
1
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2
College of Materials Science and Opto-electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
The record power conversion efficiency of small-area perovskite solar cells has impressively exceeded 25%. For commercial application, a large-area device is the necessary next step. Recently, significant progress has been achieved in fabricating efficient large-area perovskite solar cells. In this review, we will summarize recent achievements in large-area perovskite solar cells including the deposition methods as well as growth control of the large-area, high-quality perovskite layer and also the charge transport layer. Finally, we will give our insight into large-area perovskite solar cells.
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Photonics Research
2020, 8(7): 070000A1
Articles
Improved efficiency and photo-stability of methylamine-free perovskite solar cells via cadmium doping
Yong Chen
1,2
Yang Zhao
1,2
Qiufeng Ye
1,2
Zema Chu
1,2
[ ... ]
Jingbi You
1,2
Author Affiliations
Abstract
1
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Although perovskite solar cells containing methylamine cation can show high power conversion efficiency, stability is a concern. Here, methylamine-free perovskite material Cs
x
FA
1–
x
PbI
3
was synthesized by a one-step method. In addition, we incorporated smaller cadmium ions into mixed perovskite lattice to partially replace Pb ions to address the excessive internal strain in perovskite structure. We have found that the introduction of Cd can improve the crystallinity and the charge carrier lifetime of perovskite films. Consequently, a power conversion efficiency as high as 20.59% was achieved. More importantly, the devices retained 94% of their initial efficiency under 1200 h of continuous illumination.
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Journal of Semiconductors
2019, 40(12): 122201
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