Sequential Introduction of Cations Deriving Large-Grain CsxFA1-xPbI3 Thin Film for Planar Hybrid Solar Cells: Insight into Phase-Segregation and Thermal-Healing Behavior

被引:68
作者
Huang, Jiahao [1 ]
Xu, Pan [1 ]
Liu, Jian [1 ]
You, Xiao-Zeng [1 ]
机构
[1] Nanjing Univ, Sch Chem & Chem Engn, Nanjing Natl Lab Microstruct, Collaborat Innovat Ctr Adv Microstruct,State Key, Nanjing 210023, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
HALIDE PEROVSKITES; CRYSTAL-GROWTH; EFFICIENT; ELECTRON; FORMAMIDINIUM; LENGTHS; CRYSTALLIZATION; TEMPERATURE; EXTRACTION; DEPOSITION;
D O I
10.1002/smll.201603225
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Composition engineering of perovskite materials has been demonstrated to be important for high-performance solar cells. Recently, the energy favorable hybridization of formamidinium (FA) and cesium (Cs) in three dimension lead halide perovskites has been attracting increasing attention due to its potential benefit on durability. Herein, we reported a simple and effective method to produce phase-pure CsxFA1-xPbI3 thin film via sequential introduction of cations, in which the FA cation was introduced by interdiffusion annealing in the presence of N-methylimidazole (NMI). NMI was employed as an additive to slow down the crystallization and thus drive the formation of CsxFA1-xPbI3 with micrometer grain size, which probably facilitate the charge dissociation and transportation in photovoltaic devices. More importantly, composition dependent phase-segregation has been revealed and investigated for the first time during the phase-pure mixed-cation perovskites CsxFA1xPbI3. The present findings demonstrated that suppressing phase-segregation of mixed-cation perovskites by meticulous composition engineering is significant for further development of efficient photovoltaics. It also suggested that phase-pure Cs0.15FA0.85PbI3 may be a promising candidate with superior phase-durability, which performed an efficiency over 16% in planar perovskite solar cells.
引用
收藏
页数:9
相关论文
共 68 条
[1]   Highly Reproducible Perovskite Solar Cells with Average Efficiency of 18.3% and Best Efficiency of 19.7% Fabricated via Lewis Base Adduct of Lead(II) Iodide [J].
Ahn, Namyoung ;
Son, Dae-Yong ;
Jang, In-Hyuk ;
Kang, Seong Min ;
Choi, Mansoo ;
Park, Nam-Gyu .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (27) :8696-8699
[2]  
[Anonymous], 2015, APPL PHYS LETT, DOI DOI 10.1063/1.4934633
[3]  
Bi DQ, 2016, NAT ENERGY, V1, DOI [10.1038/NENERGY.2016.142, 10.1038/nenergy.2016.142]
[4]   Sequential deposition as a route to high-performance perovskite-sensitized solar cells [J].
Burschka, Julian ;
Pellet, Norman ;
Moon, Soo-Jin ;
Humphry-Baker, Robin ;
Gao, Peng ;
Nazeeruddin, Mohammad K. ;
Graetzel, Michael .
NATURE, 2013, 499 (7458) :316-+
[5]   Planar Heterojunction Perovskite Solar Cells via Vapor-Assisted Solution Process [J].
Chen, Qi ;
Zhou, Huanping ;
Hong, Ziruo ;
Luo, Song ;
Duan, Hsin-Sheng ;
Wang, Hsin-Hua ;
Liu, Yongsheng ;
Li, Gang ;
Yang, Yang .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2014, 136 (02) :622-625
[6]   Efficient and stable large-area perovskite solar cells with inorganic charge extraction layers [J].
Chen, Wei ;
Wu, Yongzhen ;
Yue, Youfeng ;
Liu, Jian ;
Zhang, Wenjun ;
Yang, Xudong ;
Chen, Han ;
Bi, Enbing ;
Ashraful, Islam ;
Graetzel, Michael ;
Han, Liyuan .
SCIENCE, 2015, 350 (6263) :944-948
[7]   Layer-by-Layer Growth of CH3NH3PbI3-xClx for Highly Efficient Planar Heterojunction Perovskite Solar Cells [J].
Chen, Yonghua ;
Chen, Tao ;
Dai, Liming .
ADVANCED MATERIALS, 2015, 27 (06) :1053-1059
[8]  
Chiang CH, 2016, NAT PHOTONICS, V10, P196, DOI [10.1038/nphoton.2016.3, 10.1038/NPHOTON.2016.3]
[9]   Intrinsic Thermal Instability of Methylammonium Lead Trihalide Perovskite [J].
Conings, Bert ;
Drijkoningen, Jeroen ;
Gauquelin, Nicolas ;
Babayigit, Aslihan ;
D'Haen, Jan ;
D'Olieslaeger, Lien ;
Ethirajan, Anitha ;
Verbeeck, Jo ;
Manca, Jean ;
Mosconi, Edoardo ;
De Angelis, Filippo ;
Boyen, Hans-Gerd .
ADVANCED ENERGY MATERIALS, 2015, 5 (15)
[10]   Impact of microstructure on local carrier lifetime in perovskite solar cells [J].
deQuilettes, Dane W. ;
Vorpahl, Sarah M. ;
Stranks, Samuel D. ;
Nagaoka, Hirokazu ;
Eperon, Giles E. ;
Ziffer, Mark E. ;
Snaith, Henry J. ;
Ginger, David S. .
SCIENCE, 2015, 348 (6235) :683-686