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Flexible Perovskite Solar Cells onto Plastic Substrate Exceeding 13% Efficiency Owing to the Optimization of CH3NH3PbI3-xClx Film via H2O Additive
Du, Yangyang1; Cai, Hongkun1; Bao, Xichang2; Xing, Zhixue1; Wu, Yunhao1; Xu, Jian1; Huang, Like1; Ni, Jian1; Li, Juan1; Zhang, Jianjun1
2018
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume6Issue:1Pages:1083-1090
AbstractIn this work, flexible perovskite solar cells (F-PSCs) are fabricated utilizing the device polyethylene terephthalate (PET) substrate/ITO/PEDOT:PSS/CH3NH3PbI3-xClx/PCBM/Ag, which exhibits the optimal power conversion efficiency (PCE) reaching 13.27%, superb stability against bending deformation, and advantageous stability in ambient atmosphere without encapsulation. Meanwhile, we herein confirm a fact that incorporating suitable H2O additive into the perovskite precursor solution leads to an enhanced CH3NH3PbI3-xClx perovskite quality for F-PSCs application, including the improvement of morphology and electrical properties. To better summarize the mechanism concerning how H2O additive affects the perovskite film quality, CH3NH3PbI3-xClx films are prepared by a simple one-step spinning method from a solution containing CH3NH3I, PbI2, and PbCI2 in a mixed solvent of H2O and dimethylformamide (DMF) with solely various volume ratio ranging from 0.1% to 0.9%. Through a comparative analysis, it is proposed that H2O additive prolongs the CH3NH3PbI3-xClx recrystallization process contributing to slower crystallization rate. Additionally, it can merge adjacent perovskite grain together by accelerating the diffusion of ions within the predeposited films toward the grain boundary, thereby yielding large and densely packed perovskite grain size.
SubtypeArticle
KeywordFlexible Perovskite Solar Cells (F-pscs) H2o Additive Pet Substrate Crystallization Stability
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/acssuschemeng.7b03382
WOS KeywordCONTROLLED HUMIDITY ; LAYER ; HYSTERESIS ; GROWTH ; AIR
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
Funding OrganizationNational Natural Science Foundation of China(61504068) ; Natural Science Foundation of Tianjin(16JCYBJC16800)
WOS SubjectChemistry, Multidisciplinary ; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Engineering, Chemical
WOS IDWOS:000419536800114
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/10540
Collection先进有机功能材料研究组
Corresponding AuthorCai, Hongkun; Bao, Xichang
Affiliation1.Nankai Univ, Coll Elect Informat & Opt Engn, Tianjin 300071, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
Recommended Citation
GB/T 7714
Du, Yangyang,Cai, Hongkun,Bao, Xichang,et al. Flexible Perovskite Solar Cells onto Plastic Substrate Exceeding 13% Efficiency Owing to the Optimization of CH3NH3PbI3-xClx Film via H2O Additive[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(1):1083-1090.
APA Du, Yangyang.,Cai, Hongkun.,Bao, Xichang.,Xing, Zhixue.,Wu, Yunhao.,...&Zhang, Jianjun.(2018).Flexible Perovskite Solar Cells onto Plastic Substrate Exceeding 13% Efficiency Owing to the Optimization of CH3NH3PbI3-xClx Film via H2O Additive.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(1),1083-1090.
MLA Du, Yangyang,et al."Flexible Perovskite Solar Cells onto Plastic Substrate Exceeding 13% Efficiency Owing to the Optimization of CH3NH3PbI3-xClx Film via H2O Additive".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.1(2018):1083-1090.
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