title: 2D/3D perovskite hybrids as moisture-tolerant and efficient light absorbers for solar cells.
abstract: The lifetime and power conversion efficiency are the key issues for the commercialization of perovskite solar cells (PSCs). In this paper, the development of 2D/3D perovskite hybrids (CA2PbI4/MAPbIxCl3-x) was firstly demonstrated to be a reliable method to combine their advantages, and provided a new concept for achieving both stable and efficient PSCs through the hybridization of perovskites. 2D/3D perovskite hybrids afforded significantly-improved moisture stability of films and devices without encapsulation in a high humidity of 63 ± 5%, as compared with the 3D perovskite (MAPbIxCl3-x). The 2D/3D perovskite-hybrid film did not undergo any degradation after 40 days, while the 3D perovskite decomposed completely under the same conditions after 8 days. The 2D/3D perovskite-hybrid device maintained 54% of the original efficiency after 220 hours, whereas the 3D perovskite device lost all the efficiency within only 50 hours. Moreover, the 2D/3D perovskite hybrid achieved comparable device performances (PCE: 13.86%) to the 3D perovskite (PCE: 13.12%) after the optimization of device fabrication conditions.
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Chaoyan
authors.initials: C
authors.lastname: Ma
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Chongqian
authors.initials: C
authors.lastname: Leng
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Yixiong
authors.initials: Y
authors.lastname: Ji
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Xingzhan
authors.initials: X
authors.lastname: Wei
authors.affiliation: Key Laboratory of Low-grade Energy Utilization Technologies and Systems of the Ministry of Education of China, Chongqing, 400044, China and School of Power Engineering, Chongqing University, Chongqing, 400044, China.
authors.forename: Kuan
authors.initials: K
authors.lastname: Sun
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Linlong
authors.initials: L
authors.lastname: Tang
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Luo
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Chaolong
authors.initials: C
authors.lastname: Li
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Yunsheng
authors.initials: Y
authors.lastname: Deng
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Shuanglong
authors.initials: S
authors.lastname: Feng
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Shen
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Shirong
authors.initials: S
authors.lastname: Lu
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Chunlei
authors.initials: C
authors.lastname: Du
authors.affiliation: Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Fang Zheng Road 266, Beipei District, Chongqing city, 400714, China. lushirong@cigit.ac.cn cldu@cigit.ac.cn shi@cigit.ac.cn.
authors.forename: Haofei
authors.initials: H
authors.lastname: Shi