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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
Source PublicationRSC ADVANCES
Volume5Issue:74Pages:60562-60569
AbstractOrganometal 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5ra09110a
WOS Subject ExtendedChemistry
WOS KeywordORGANOMETAL HALIDE PEROVSKITES ; TRIHALIDE PEROVSKITES ; EFFICIENT ; PERFORMANCE ; CRYSTALLIZATION ; HYSTERESIS ; CH3NH3PBI3 ; MOBILITIES ; CHEMISTRY ; ELECTRON
Indexed BySCI
Language英语
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000358230400089
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10531
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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