Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 921, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.166007
Keywords
Perovskitesolarcells(PeSCs); P-i-nstructure; Electrontransportlayer(ETL); PCBM/ZNO; C-60/BCP
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Funding
- National Research Foundation of Korea (NRF) - Korea government [NRF-2021R1A2C2010353]
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This study comprehensively investigates and compares the performance of PCBM/ZnO and C-60/BCP as electron transport layer materials in high-performance perovskite solar cells. The results show that PCBM/ZnO has higher energy conversion efficiency, while C-60/BCP exhibits better stability.
The objective of this study was to comprehensively investigate and compare PCBM/ZnO and C-60/BCP-based electron transport layers (ETLs) (well recognized as representative ETLs) between perovskite and metal electrode in perovskite solar cells (PeSCs) for high-performance p-i-n structure PeSCs. Their film char-acteristics and their effects on solar cell performances were studied. When PCBM/ZnO was used as ETL material, the PCE of PeSCs was 19.36 %, which was higher than the PCE of 17.10 % when C-60/BCP was used possibly due to more efficient charge recombination reduction and charge extraction shown in PCBM/ZnO-based devices. However, in terms of stability (air, light-soaking, and heat), C60/BCP-based devices showed higher stability than PCBM/ZnO-based devices. (c) 2022 Published by Elsevier B.V.
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