Temperature-assisted crystallization for inorganic CsPbI2Br perovskite solar cells to attain high stabilized efficiency 14.81%

doi:10.1016/j.nanoen.2018.08.012

	Temperature-assisted crystallization for inorganic CsPbI2Br perovskite solar cells to attain high stabilized efficiency 14.81%
	Wang, Haoran 2; Bai, Dongliang 2; Bian, Hui 2; Jin, Zhiwen 2; Meng, Lina 2; Wang, Qian 2; Liu, Shengzhong (Frank)1,2
刊名	NANO ENERGY
	2018-10-01
卷号	52 页码:408-415
关键词	Crystallization CsPbI2Br Perovskite Solar cells Nucleation Solubility
ISSN号	2211-2855
DOI	10.1016/j.nanoen.2018.08.012
通讯作者	Jin, Zhiwen(jinzhiwen@snnu.edu.cn) ; Wang, Qian(wangqian16@snnu.edu.cn) ; Liu, Shengzhong (Frank)(szliu@dicp.ac.cn)
英文摘要	Due to its super thermal stability, inorganic CsPbI2Br perovskite has attracted more and more attention in the field of photovoltaic application. However, its device performance, as reported to date, is greatly challenged in preparing CsPbI2Br films with both sufficient absorbance and high quality. Herein, crystallization engineering is applied in producing solution-processed CsPbI2Br film to guarantee sufficient light harvesting and effective carrier extraction. Further study proves that the precursor solution temperature would largely affect the crystallization progress: (1) the nucleation step is highly related to the solubility of precursor in a specific solvent or solvents at elevated temperatures; (2) the crystal growth rate is highly related to the solvent evaporation rate. To obtain thick film with larger crystalline grain size, the precursor solution temperature should be carefully adjusted for both suppressing the formation of too many nuclei and increasing the crystallization rate at the same time. Finally, the optimized CsPbI2Br would be obtained when the precursor solution is maintained at 100 degrees C, the corresponding device shows a stabilized efficiency as high as 14.81%. As far as we know, this is the highest PCE for the CsPbBrI2 perovskite based solar cells.
资助项目	National Key Research and Development Program of China MOST[2017YFA0204800] ; Fundamental Research Funds for the Central Universities[GK201703026] ; National Natural Science Foundation of China[61704099/91733301] ; Natural Science Foundation of Shaanxi Province[2018JQ6072] ; 111 Project[B14041]
WOS关键词	LEAD HALIDE PEROVSKITES ; ELECTRON-TRANSPORT LAYER ; FORMAMIDINIUM ; PERFORMANCE ; HYBRID ; PHASE ; ENHANCEMENT ; ABSORBER ; CRYSTALS ; GROWTH
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000444859700044
资助机构	National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167026]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Jin, Zhiwen; Wang, Qian; Liu, Shengzhong (Frank)
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, iChEM, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Shaanxi Normal Univ, Shaanxi Key Lab Adv Energy Devices, Key Lab Appl Surface & Colloid Chem, Shaanxi Key Lab Adv Energy Devices,Minist Educ,Sh, Xian 710119, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Haoran,Bai, Dongliang,Bian, Hui,et al. Temperature-assisted crystallization for inorganic CsPbI2Br perovskite solar cells to attain high stabilized efficiency 14.81%[J]. NANO ENERGY,2018,52:408-415.
APA	Wang, Haoran.,Bai, Dongliang.,Bian, Hui.,Jin, Zhiwen.,Meng, Lina.,...&Liu, Shengzhong .(2018).Temperature-assisted crystallization for inorganic CsPbI2Br perovskite solar cells to attain high stabilized efficiency 14.81%.NANO ENERGY,52,408-415.
MLA	Wang, Haoran,et al."Temperature-assisted crystallization for inorganic CsPbI2Br perovskite solar cells to attain high stabilized efficiency 14.81%".NANO ENERGY 52(2018):408-415.