Journal
JOURNAL OF POWER SOURCES
Volume 544, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2022.231871
Keywords
SnO2; Electron transporting layer; Tin oxalate; Perovskite solar cell
Funding
- Doctoral Scientific Research Foundation of Xinyang Normal University (XYNU)
- Nanhu Scholars Program for Young Scholars of XYNU
- Key Project of Henan Province Colleges and Universities Plan [19A430022]
- Natural Science Foundation of Henan Province [202300410334]
- NUS
- National Research Foundation Singapore (NRF)
- Energy Market Authority of Singapore (EMA)
- Singapore Economic Development Board (EDB)
Ask authors/readers for more resources
This study demonstrates that tin oxalate can serve as an alternative tin source for fabricating SnO2 electron transporting layers with fast, clean, and energy-saving characteristics. By optimizing the SnC2O4 concentration, high-quality SnO2 films can be obtained, resulting in improved power conversion efficiency and device stability for perovskite solar cells.
Solution processed SnO2 film has been demonstrated to be an efficient electron transporting layer for perovskite solar cells owning to its outstanding opto-electric properties. At the same time, SnCl2, SnCl4 and their hydrates are the most widely used tin sources for depositing SnO2 films. Herein, we demonstrate that tin oxalate (SnC2O4) can function as an alternative tin source. A fast, clean and energy-saving method is proposed to fabricate SnO2 electron transporting layer at moderate temperature of 180 C using a precursor solution of SnC2O4 dissolved in hydrogen peroxide. After optimization of the SnC2O4 concentrations, high quality SnO2 films can be obtained, which result in higher power conversion efficiency and better long-term device stability of the corresponding perovskite solar cells compared with the reference solar cells fabricated on commercial SnO2 films. Furthermore, the champion power conversion efficiency has been increased from 20.40% for the reference solar cell to 21.31% for the target solar cell.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available