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A large grain size perovskite thin film with a dense structure for planar heterojunction solar cells via spray deposition under ambient conditions
Liang, Zhurong1,2; Zhang, Shaohong1; Xu, Xueqing1,2; Wang, Nan1; Wang, Junxia1; Wang, Xin1; Bi, Zhuoneng1,2; Xu, Gang1,2; Yuan, Ningyi3; Ding, Jianning3
2015
发表期刊RSC ADVANCES
卷号5期号:74页码:60562-60569
摘要Organometal halide perovskites have emerged as promising light absorbers for third-generation photovoltaics. Herein we developed a facile spray deposition process to prepare high-quality perovskite films without any post-annealing under ambient conditions with a high humidity of up to 50%. The as-prepared perovskite films exhibit large grain sizes up to micrometers and full surface coverage. These desirable features significantly enhance the light harvesting efficiency and reduce charge recombination. Furthermore, the morphology and film thickness can be easily controlled by varying the precursor concentration or scanning times during spray deposition. The as-fabricated planar heterojunction solar cells with an optimized perovskite film thickness exhibited a power conversion efficiency of similar to 7.89%, which is expected to be further improved with the increase of substrate temperature, the utilization of more compatible substrates, and the optimization of the hole-transport layer and device structure. This simple low-temperature manufacturing process provides a novel strategy for the scalable and fast fabrication of high-quality absorber layers for efficient perovskite based solar cells. The film formation mechanism regarding the nucleation and growth of perovskite films with desirable morphology is also discussed.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c5ra09110a
研究领域[WOS]Chemistry
关键词[WOS]ORGANOMETAL HALIDE PEROVSKITES ; TRIHALIDE PEROVSKITES ; EFFICIENT ; PERFORMANCE ; CRYSTALLIZATION ; HYSTERESIS ; CH3NH3PBI3 ; MOBILITIES ; CHEMISTRY ; ELECTRON
收录类别SCI
语种英语
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000358230400089
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10531
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Renewable Energy & Gas Hydrate Key Lab, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Changzhou 213164, Jiangsu, Peoples R China
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Liang, Zhurong,Zhang, Shaohong,Xu, Xueqing,et al. A large grain size perovskite thin film with a dense structure for planar heterojunction solar cells via spray deposition under ambient conditions[J]. RSC ADVANCES,2015,5(74):60562-60569.
APA Liang, Zhurong.,Zhang, Shaohong.,Xu, Xueqing.,Wang, Nan.,Wang, Junxia.,...&Ding, Jianning.(2015).A large grain size perovskite thin film with a dense structure for planar heterojunction solar cells via spray deposition under ambient conditions.RSC ADVANCES,5(74),60562-60569.
MLA Liang, Zhurong,et al."A large grain size perovskite thin film with a dense structure for planar heterojunction solar cells via spray deposition under ambient conditions".RSC ADVANCES 5.74(2015):60562-60569.
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