Doping engineering of carrier transporting layers for ambient-air-stable lead-free rudorffite solar cells prepared by thermal-assisted doctor blade coating

Kai Chi Hsiao, Yen Fu Yu, Ching Mei Ho, Meng Huan Jao, Yu Hsiang Chang, Shih Hsuan Chen, Yin Hsuan Chang, Wei Fang Su, Kun Mu Lee*, Ming Chung Wu

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

15 引文 斯高帕斯(Scopus)

摘要

Nowadays, high-efficiency perovskite solar cells mainly comprise a lead-based light-absorber layer. Without a doubt, the unprecedented power conversion efficiency (PCE) of perovskite solar cells makes them an optimistic solution for sustainable or renewable energy sources. However, the toxic composition of lead, a notorious element for organisms, in perovskite solar cells and its stability in an ambient environment raise public concern. Therefore, resolving these two issues is urgent for developing perovskite solar cells. In this study, Ag3BiI6 rudorffite was selected as an active layer prepared by the thermal-assisted doctor blade coating method to replace the conventional lead-based perovskite active layer. To align the energy level between carrier transporting layers and the Ag3BiI6 light absorber layer, doping both carrier transporting layers improved the PCE of doctor-bladed devices from 2.06% to 2.77%. These devices can maintain 90% of their initial PCE after storing them unencapsulated in an ambient environment for over 3,000 h. This study also demonstrates a large 1.00 cm2 device with a PCE of 2.03%. The lead-free, air-stable, and mass production processible properties make it a promising selection for photovoltaic materials.

原文英語
文章編號138807
期刊Chemical Engineering Journal
451
DOIs
出版狀態已出版 - 01 01 2023

文獻附註

Publisher Copyright:
© 2022 Elsevier B.V.

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