ICCAS OpenIR
Trihydrazine Dihydriodide-Assisted Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells
Li, Fengzhu; Fan, Haochen; Zhang, Jie; Huang, Jin-Hua; Wang, Pengcheng; Gao, Caiyan; Yang, Lian-Ming; Zhu, Zonglong; Jen, Alex K-Y; Song, Yanlin; Jiang, Ke-Jian
2019-09-01
Source PublicationSOLAR RRL
ISSN2367-198X
Volume3Issue:9
AbstractThe deposition of a uniform and dense tin-based perovskite layer with low defect-caused background carrier density is crucial for achieving efficient tin perovskite solar cells (PSCs). These defects are mainly caused by the rapid oxidation of Sn2+ to Sn4+ in tin perovskite during device fabrication. Herein, trihydrazine dihydriodide ((N2H4)(3)(HI)(2)) is used as an additive for solution deposition of a formamidinium tin iodide (FASnI(3)) perovskite layer. The resultant FASnI(3) layer is homogeneous with full surface coverage; moreover, the content of Sn4+ is significantly reduced in the film from the SnI2 precursor owing to the reductive property of (N2H4)(3)(HI)(2). With the high-quality FASnI(3) layer as a light absorber, planar-heterojunction perovskite solar cells are fabricated, exhibiting a maximum power conversion efficiency of 8.48% and good reproducibility. This work opens new possibilities for achieving efficient lead-free tin-based perovskite solar cells.
DOI10.1002/solr.201900285
Indexed BySCI
Language英语
WOS IDWOS:000478424500001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82727
Collection中国科学院化学研究所
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Fengzhu,Fan, Haochen,Zhang, Jie,et al. Trihydrazine Dihydriodide-Assisted Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells[J]. SOLAR RRL,2019,3(9).
APA Li, Fengzhu.,Fan, Haochen.,Zhang, Jie.,Huang, Jin-Hua.,Wang, Pengcheng.,...&Jiang, Ke-Jian.(2019).Trihydrazine Dihydriodide-Assisted Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells.SOLAR RRL,3(9).
MLA Li, Fengzhu,et al."Trihydrazine Dihydriodide-Assisted Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells".SOLAR RRL 3.9(2019).
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