DataVXACS Energy LettersPaper
journal article·2022-08-12

A Two-Step Solution-Processed Wide-Bandgap Perovskite for Monolithic Silicon-Based Tandem Solar Cells with >27% Efficiency

Bingbing Chen, Pengyang Wang, Renjie Li, Ningyu Ren, Wei Han, Zhao Zhu, Jin Wang, Sanlong Wang, Biao Shi, Jingjing Liu, Pengfei Liu, Qian Huang, Shengzhi Xu, Ying Zhao, Xiaodan Zhang

ACS Energy Letters· Volume 7· Issue 8
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Source abstract

Abstract

A two-step solution sequential deposition has been successfully applied to narrow-bandgap (below 1.60 eV) perovskite solar cells (PSCs), while it has not been widely used in wide-bandgap PSCs and monolithic tandem solar cells (TSCs). Here, a lead halide complex is formed by introducing a formamidinium iodide (FAI) and rubidium acetate (RbAc) into the first step. The results show that the lead halide complex alters the crystallization kinetics and promotes a prominent orientation (100) growth of the perovskite film, resulting in an efficiency of 27.64% for monolithic perovskite/silicon TSCs. Additionally, an enlarged-scaled tandem device with an efficiency of 22.81% (active area of 11.879 cm2) is also achieved, which is one of the most efficient devices with an area greater than 10 cm2. This work provides an effective strategy to fabricate perovskite/silicon TSCs with high performance, reproducibility, and large area via the two-step solution method, which will accelerate the industrialization of perovskite/silicon tandem technique.
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Research context

Electronic materialsMaterials processing

OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties

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 Research Center, Nankai University, Tianjin 300350, People’s Republic of China

Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin 300350, People’s Republic of China

Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, People’s Republic of China

Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Tianjin 300350, People’s Republic of China

Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China

School of Physical Science and Technology, Inner Mongolia University, Key Laboratory of Semiconductor, Hohhot 010021, People’s Republic of China

Photovoltaic Technology at Universities of Inner Mongolia Autonomous Region, Hohhot 010021, People’s Republic of China

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