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Promoting perovskite crystal growth to achieve highly efficient and stable solar cells by introducing acetamide as an additive
Zheng, Haiying1,2; Zhu, Liangzheng1,2; Hu, Linhua1; Yang, Shangfeng2; Chen, Shuanghong1; Alsaedi, Ahmed3; Hayat, Tasawar3,5; Huang, Yang1; Pan, Xu1; Dai, Songyuan1,3,4
2018-06-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume6Issue:21Pages:9930-9937
Abstract

To date, perovskite solar cells (PSCs) have achieved superior photovoltaic performance with a high power conversion efficiency (PCE) of over 22%. However, there are very few devices which have a high PCE and high stability simultaneously. In this study, we fabricated PSCs made from (FAPbI(3))(0.85)(MAPbBr(3))(0.15) using the non-volatile Lewis base acetamide (CH3CONH2) as an additive. Compared to a reference device, the device containing 5mg mL(-1) CH3CONH2 displayed a markedly improved PCE of 19.01% and less hysteresis, due to its high-quality film with a better crystal structure, evidently larger grain size and greater thickness. In addition, the device with CH3CONH2 exhibited better humidity and heat stability. The unsealed device could maintain about 70% and 50% of its starting PCE under around 50% and 80% relative humidity (RH) for 1000 h and 700 h, respectively. Meanwhile, the unsealed device with CH3CONH2 could retain about 80% and 60% of its starting PCE at 60 degrees C and 85 degrees C for 200 h and 150 h, respectively. These results clearly show that using CH3CONH2 as an additive can promote crystal growth and enhance the grain size of perovskite thin films and introducing a suitable additive can realize the simultaneous improvement of the PCE and stability of PSCs.

DOI10.1039/c8ta02121j
WOS KeywordENHANCED CRYSTALLIZATION ; THIN-FILMS ; CH3NH3PBI3 ; PERFORMANCE ; STABILITY ; IODIDE ; AIR ; FULLERENE ; LAYER
Indexed BySCI
Language英语
Funding ProjectMajor/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology[2016FXZY003] ; National High Technology Research and Development Program of China[2015AA050602] ; STS project of Chinese Academy of Sciences[KFJ-SW-STS-152] ; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (NCEPU)[LAPS17009]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000434241800019
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/36871
Collection应用技术研究所
Corresponding AuthorHuang, Yang; Pan, Xu; Dai, Songyuan
Affiliation1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.King Abdulaziz Univ, Fac Sci, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia
4.North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China
5.Quaid I Azam Univ, Dept Math, Islamabad 44000, Pakistan
Recommended Citation
GB/T 7714
Zheng, Haiying,Zhu, Liangzheng,Hu, Linhua,et al. Promoting perovskite crystal growth to achieve highly efficient and stable solar cells by introducing acetamide as an additive[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(21):9930-9937.
APA Zheng, Haiying.,Zhu, Liangzheng.,Hu, Linhua.,Yang, Shangfeng.,Chen, Shuanghong.,...&Dai, Songyuan.(2018).Promoting perovskite crystal growth to achieve highly efficient and stable solar cells by introducing acetamide as an additive.JOURNAL OF MATERIALS CHEMISTRY A,6(21),9930-9937.
MLA Zheng, Haiying,et al."Promoting perovskite crystal growth to achieve highly efficient and stable solar cells by introducing acetamide as an additive".JOURNAL OF MATERIALS CHEMISTRY A 6.21(2018):9930-9937.
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