CsPbI2Br Perovskite Solar Cells Based on Carbon Black-Containing Counter Electrodes

doi:10.1021/acsami.0c08006

SIC OpenIR

	CsPbI2Br Perovskite Solar Cells Based on Carbon Black-Containing Counter Electrodes
	Gong, SP; Li, HY; Chen, ZQ; Shou, CH; Huang, MJ; Yang, SW
	2020-08-05
Source Publication	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
Issue	31 Pages:34882
Subtype	Article
Abstract	CsPbI2Br perovskite solar cells (PSCs) based on carbon electrodes (CEs) are considered to be low-cost and thermally stable devices. Nevertheless, the insufficient contact and energy level mismatch between the CsPbI2Br layer and CE hinder the further enhancement of the cell efficiency. Herein, a carbon black (CB) interlayer was introduced between the perovskite layer and CE. The hole extraction was facilitated due to the larger contact area and suitable energy band alignment in the CsPbI2Br/CB interface. Further investigation indicated the diffusion of CB nanoparticles from the CE or CB layer to the CsPbI2Br film after a certain period of time. We disclosed the formation of a CsPbI2Br bulk heterojunction structure due to the carbon diffusion, which resulted in an efficiency enhancement. As a result, a record efficiency of 13.13% is achieved for carbon-based inorganic PSCs. This work also reveals that the diffusion of CB nanoparticles in CB-containing PSCs is universal and inevitable, although this kind of diffusion results in the enhancement of cell efficiency.
DOI	10.1021/acsami.0c08006
WOS Keyword	INDUCED DEGRADATION ; SURFACE-CHEMISTRY ; HIGH-EFFICIENCY ; NANOPARTICLES ; DEPOSITION ; FILMS
Language	英语
WOS Research Area	Science & Technology - Other Topics ; Materials Science
Publisher	AMER CHEMICAL SOC
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27849
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Gong, SP,Li, HY,Chen, ZQ,et al. CsPbI2Br Perovskite Solar Cells Based on Carbon Black-Containing Counter Electrodes[J]. ACS APPLIED MATERIALS & INTERFACES,2020(31):34882.
APA	Gong, SP,Li, HY,Chen, ZQ,Shou, CH,Huang, MJ,&Yang, SW.(2020).CsPbI2Br Perovskite Solar Cells Based on Carbon Black-Containing Counter Electrodes.ACS APPLIED MATERIALS & INTERFACES(31),34882.
MLA	Gong, SP,et al."CsPbI2Br Perovskite Solar Cells Based on Carbon Black-Containing Counter Electrodes".ACS APPLIED MATERIALS & INTERFACES .31(2020):34882.

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