DataVXAdvanced Energy MaterialsPaper
journal article·2022-12

Conductive Passivator for Efficient Monolithic Perovskite/Silicon Tandem Solar Cell on Commercially Textured Silicon

Qiaojing Xu, Biao Shi, Yucheng Li, Lingling Yan, Weiyuan Duan, Yuxiang Li, Renjie Li, Ningyu Ren, Wei Han, Jingjing Liu, Qian Huang, Dekun Zhang, Huizhi Ren, Shengzhi Xu, Chaohua Zhang, Huihu Zhuang, Andreas Lambertz, Kaining Ding, Ying Zhao, Xiaodan Zhang

Advanced Energy Materials· Volume 12· Issue 46
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Source abstract

Abstract

Abstract Monolithic perovskite/silicon tandem solar cells on commercially textured silicon with conformal perovskite top cells allow compatibility with standard industrial processes of silicon photovoltaic, as well as maximization of light trapping at the least cost. However, the efficiency is still limited by unsatisfactory open‐circuit voltage (VOC) and fill factor (FF), owing to the challenge of growing high‐quality perovskite film on textured substrates and the lack of particularly effective passivation at the inferior interface between perovskite and C60. Different from traditionally electricity‐insulating passivator, herein, a conductive organic amine salt is introduced into this interface to suppress nonradiative recombination loss and promote carriers transfer synchronously, significantly increasing the VOC while preserving high FF, thus improving the efficiency substantially. Finally, a champion efficiency of up to 28.51% is obtained. Furthermore, due to the favorable electrical properties of this molecule, there is a wide processing window for the passivation, which helps to achieve an efficiency of 25.13% when the active area is enlarged to 11.879 cm2.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Organic Electronics and Photovoltaics · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center Solar Energy Conversion Center Nankai University Tianjin 300350 P. R. China

Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin 300350 P. R. China

Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 P. R. China

Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin 300350 P. R. China

Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 P. R. China

IEK‐5 Photovoltaik Forschungszentrum Jülich 52425 Jülich Germany

Gold Stone (Fujian) Energy Company Ltd Quanzhou 362000 P. R. China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Tianjin City · China Postdoctoral Science Foundation

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