journal article·2024-09-02

Multifunctional Ternary Oxide for Efficient CsPbBr3 Perovskite Solar Cells on Rigid and Flexible Substrate via All-Low-Temperature Process

Bo Xiao, Zijun Yi, Yuchen Xiong, Yihuai Huang, Wenguang Zhang, Qinghui Jiang, Abdul Basit, Guibin Shen, Yubo Luo, Xin Li, Junyou Yang

ACS Materials Letters· Volume 6· Issue 9
Publisher page

Abstract

Efficient CsPbBr 3 perovskite films and the low-temperature fabrication of electron transport layers (ETLs) are crucial for the commercial viability of CsPbBr 3 perovskite solar cells (PSCs). We present a vapor-assisted solution technique that produces high-quality CsPbBr 3 perovskite films without annealing. Doping ZnO with trivalent metals such as yttrium (Y), antimony (Sb), and iron (Fe) improves the electrical properties and energy alignment with CsPbBr 3 . Our experiments show that Sb doping enhances charge extraction and reduces interface carrier recombination to achieve a power conversion efficiency (PCE) of 9.55% in the inorganic CsPbBr 3 PSCs. The optimized device maintains over 90% of its original PCE after 90 days under 65% relative humidity and 65 °C. Additionally, flexible CsPbBr 3 PSCs with an Sb-ZnO ETL achieve a record 6.06% efficiency with remarkable mechanical durability to retain 91.8% of initial PCE after 1000 bending cycles at a 3 mm curvature radius.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Conducting polymers and applications

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

Affiliations

State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China

State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Key Laboratory of Textile Fiber and Products, Ministry of Education, School of Textile Science and Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China

China-Eu Institute for Clean and Renewable Energy, Huazhong University of Science and Technology, Wuhan 430074, China

Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong

School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore

Funding

National Key Research and Development Program of China · Natural Science Foundation of Hubei Province · National Natural Science Foundation of China

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