Efficient and stable wide bandgap perovskite solar cells through surface passivation with long alkyl chain organic cations
Duong, The; Pham, Huyen T.; Yin, Yanting; Peng, Jun; Mahmud, Md Arafat; Wu, Yiliang; Shen, Heping; Zheng, Jianghui; Tran, Phu Thanh; Lu, Teng; Li, Li; Kumar, Anand; Andersson, Gunther; Ho-Baillie, Anita; Liu, Yun; White, Thomas; Weber, Klaus; Catchpole, Kylie
Defects on perovskite surfaces acting as charge-carrier-traps are a key factor limiting the performance of perovskite solar cells (PSCs). Here we studied the defect passivation effect of three bromide-containing alkylammonium organic cations with increasing alkyl-chain-length: n-butylammonium bromide, n-octylammonium bromide and n-dodecylammonium bromide on a perovskite composition with 1.72 eV bandgap. Long-alkyl-chain organic cations were found to have a greater passivation effect compared to...[Show more]
|Collections||ANU Research Publications|
|Source:||Journal of Materials Chemistry A|
|Access Rights:||Open Access|
|Manuscript_JMCA.pdf||Main article - accepted manuscript||1.56 MB||Adobe PDF|
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