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Title: Amorphous CdO-In2O3Electrode for Perovskite-Based Bifacial and Tandem Photovoltaic Technologies with High Energy Production
Authors: Cheng, Yuanhang 
Zeng, Zixin
Wang, Ying
Rodríguez-Gallegos, Carlos D
Liu, Xixia
Thway, Maung
Khup, David
Khaing, Aung Myint
Yu, Kin Man
Tsang, Sai-Wing
Lin, F. 
Issue Date: 12-Nov-2021
Publisher: Wiley
Citation: Cheng, Yuanhang, Zeng, Zixin, LIU TIANYUAN, Wang, Ying, Rodríguez-Gallegos, Carlos D, LIU HAOHUI, Liu, Xixia, Thway, Maung, Khup, David, Khaing, Aung Myint, Yu, Kin Man, Tsang, Sai-Wing, Lin, F. (2021-11-12). Amorphous CdO-In2O3Electrode for Perovskite-Based Bifacial and Tandem Photovoltaic Technologies with High Energy Production. Solar RRL : 2100809-2100809. ScholarBank@NUS Repository.
Abstract: Energy production of perovskite-based photovoltaic (PV) technology can be increased not only by improving device efficiency of perovskite solar cells (PVSCs) but also by innovative concepts such as bifacial and tandem configurations which require low-damage and highly transparent top electrodes. Herein, an amorphous CdO-In2O3 alloy film with high transparency and low resistivity and its application in a bifacial PVSC and a perovskite/Si 4T tandem solar cell are reported. Due to the high optical transmittance, the CdO-In2O3-based PVSC shows a high bifaciality factor of 84.0%, and the CdO-In2O3-based perovskite/Si 4T tandem solar cell achieves a champion power conversion efficiency of 25.12%, much higher than the indium tin oxide based tandem cell. Finally, a yearly energy yield calculation and levelized cost of energy (LCOE) analysis for these PV technologies (together with Si single-junction solar cells as a reference) in Singapore, Australia, and Germany are conducted. The results demonstrate the potential of CdO-In2O3-based perovskite PV technologies, yet more efforts are still required to further reduce the manufacturing cost to achieve competitive LCOE values in countries with relatively low PV installation cost.
Source Title: Solar RRL
ISSN: 2367-198X
DOI: 10.1002/solr.202100809
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