Water-Soluble 2D Transition Metal Dichalcogenides as the Hole-Transport Layer for Highly Efficient and Stable p-i-n Perovskite Solar Cells

	Water-Soluble 2D Transition Metal Dichalcogenides as the Hole-Transport Layer for Highly Efficient and Stable p-i-n Perovskite Solar Cells
	Huang, Peng 1; Wang, Zhaowei 1; Liu, Yanfeng 1; Zhang, Kaicheng 1; Yuan, Ligang 1; Zhou, Yi 1; Song, Bo 1; Li, Yongfang 1,2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017-08-02
卷号	9 期号:30 页码:25323-25331
关键词	P-i-n Perovskite Solar Cells 2d Transition Metal Dichalcogenides Hole-transport Layer 1t Phase Improved Stability
英文摘要	As a hole-transport layer (HTL) material, poly(3,4-ethylenediox-ythiophene):polystyrene-sulfonate (PEDOT:PSS) was often criticized for its intrinsic acidity and hygroscopic effect that would in the long run affect the stability of perovskite solar cells (Pero-SCs). As alternatives, herein water-soluble two-dimensional (2D) transition metal dichalcogenides (TMDs), such as MoS2 and WS2 were used as HTLs in p-i-n Pero-SCs. It was found that the content of 1T phase in 2D TMDs HTLs is centrally important to the power conversion efficiencies (PCEs) of Pero-SCs, and the 1T-rich TMDs (as achieved from exfoliation and without postheating) lead to much higher PCEs. More importantly, as PEDOT:PSS was replaced by 2D TMDs, both the PCEs and stability of Pero-SCs were significantly improved. The highest PCEs of 14.35 and 15.00% were obtained for the Pero-SCs with MoS2 and WS2, respectively, whereas the Pero-SCs with PEDOT:PSS showed a highest PCE of only 12.44%. These are up to date the highest PCEs using 2D TMDs as HTLs. After, being stored in a glovebox for 56 days, PCEs of the Pero-SCs using MoS2 and WS2 HTLs remained 78 and 72%, respectively, whereas, the PCEs of Pero-SCs with PEDOT:PSS almost dropped to 0 over 35 days. This study demonstrates that water-soluble 2D TMDs have great potential for application as new generation of HTLs aiming at high performance and long-term stable Pero-SCs.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/39239]
专题	化学研究所_有机固体实验室
作者单位	1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Lab Adv Optoelect Mat, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Huang, Peng,Wang, Zhaowei,Liu, Yanfeng,et al. Water-Soluble 2D Transition Metal Dichalcogenides as the Hole-Transport Layer for Highly Efficient and Stable p-i-n Perovskite Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(30):25323-25331.
APA	Huang, Peng.,Wang, Zhaowei.,Liu, Yanfeng.,Zhang, Kaicheng.,Yuan, Ligang.,...&Li, Yongfang.(2017).Water-Soluble 2D Transition Metal Dichalcogenides as the Hole-Transport Layer for Highly Efficient and Stable p-i-n Perovskite Solar Cells.ACS APPLIED MATERIALS & INTERFACES,9(30),25323-25331.
MLA	Huang, Peng,et al."Water-Soluble 2D Transition Metal Dichalcogenides as the Hole-Transport Layer for Highly Efficient and Stable p-i-n Perovskite Solar Cells".ACS APPLIED MATERIALS & INTERFACES 9.30(2017):25323-25331.