Boosting Photovoltaic Properties and Intrinsic Stability for MA-Based Perovskite Solar Cells by Incorporating 1,1,1-Trimethylhydrazinium Cation | |
Liu, Guozhen2,3; Xu, Shendong2,3; Zheng, Haiying2,3; Xu, Xiaoxiao2,3; Xu, Huifen2; Zhang, Liying2,3; Zhang, Xianxi1; Kong, Fantai2; Pan, Xu2 | |
刊名 | ACS APPLIED MATERIALS & INTERFACES |
2019-10-23 | |
关键词 | perovskite solar cells MAPbI(3) 1,1,1-trimethylhydrazinium cation photovoltaic properties intrinsic stability |
ISSN号 | 1944-8244 |
DOI | 10.1021/acsami.9b13701 |
英文摘要 | The most critical reason for limiting the extensive study and promotion of MA-based perovskites is their intrinsic instability when compared to FA-based perovskites. Therefore, it is necessary to develop a simple and effective method to improve their intrinsic stability. Herein, the 1,1,1-trimethylhydrazinium cation (TMH+) was first introduced into MAPbI(3) to fabricate high-performance mixed-cation perovskite solar cells (PSCs) with an enhanced power conversion efficiency (PCE) of 19.86%, which benefits by the improved crystallization and morphology of films. On the one hand, the slightly large size of TMH+ is complementary to the low tolerance factor of MAPbI(3) and then enhances the structure stability. On the other hand, the presence of methyl groups in TMH+ is beneficial to promote the hydrophobicity of MA-based perovskite. More importantly, the hydrazinium group can effectively inhibit the production of Pb-0 in perovskites, which is the initial stage of degradation. As a result, the intrinsic stability of PSCs has been observably boosted. After aging at 45 +/- 5% RH for 1800 h and 85 degrees C for 200 h, the unencapsulated PSCs retained 77 and 79% of initial PCE, respectively. This work provides a new design for the selection of suitable cations with special structures and chemical groups to enhance the moisture resistance and intrinsic stability of MA-based perovskite at the source of degradation. |
资助项目 | National Key R&D Program of China[2018YFB1500101] ; National Key Research and Development Program of China[2016YFA0202401] ; Colleges and Universities in Shandong Province Science and Technology Projects[J17KA097] |
WOS关键词 | HIGHLY EFFICIENT ; CH3NH3PBI3 PEROVSKITE ; DEFECT PASSIVATION ; PERFORMANCE ; IODIDE ; LIGHT ; FILMS ; LAYERS ; GRAIN |
WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000492802100044 |
资助机构 | National Key R&D Program of China ; National Key Research and Development Program of China ; Colleges and Universities in Shandong Province Science and Technology Projects |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/73836] |
专题 | 合肥物质科学研究院_应用技术研究所 |
通讯作者 | Pan, Xu |
作者单位 | 1.Liaocheng Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Chem Energy Storage & Nove, Shandong Prov Key Lab, Liaocheng 252000, Shandong, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Guozhen,Xu, Shendong,Zheng, Haiying,et al. Boosting Photovoltaic Properties and Intrinsic Stability for MA-Based Perovskite Solar Cells by Incorporating 1,1,1-Trimethylhydrazinium Cation[J]. ACS APPLIED MATERIALS & INTERFACES,2019. |
APA | Liu, Guozhen.,Xu, Shendong.,Zheng, Haiying.,Xu, Xiaoxiao.,Xu, Huifen.,...&Pan, Xu.(2019).Boosting Photovoltaic Properties and Intrinsic Stability for MA-Based Perovskite Solar Cells by Incorporating 1,1,1-Trimethylhydrazinium Cation.ACS APPLIED MATERIALS & INTERFACES. |
MLA | Liu, Guozhen,et al."Boosting Photovoltaic Properties and Intrinsic Stability for MA-Based Perovskite Solar Cells by Incorporating 1,1,1-Trimethylhydrazinium Cation".ACS APPLIED MATERIALS & INTERFACES (2019). |
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