气候变化领域集成服务门户(CCPortal): High-performance all-small-molecule organic solar cells without interlayers

CCPortal

DOI	10.1039/d1ee00051a
	High-performance all-small-molecule organic solar cells without interlayers
	Sun R.; Wu Y.; Guo J.; Wang Y.; Qin F.; Shen B.; Li D.; Wang T.; Li Y.; Zhou Y.; Lu G.; Li Y.; Min J.
发表日期	2021
ISSN	17545692
起始页码	3174
结束页码	3183
卷号	14 期号:5
英文摘要	In this work, we report a two-step solvent treatment (TSST) strategy to construct high-performance all-small-molecule solar cells (all-SMSCs) without interfacial layers (IFLs), which only consist of an active layer (AL) sandwiched between two electrodes. The chlorinated ITO (ITO-Cl) anode exhibits down-shifted work functions and improved surface energy enabled by the presence of a large density of chloride ions caused by the surface chlorination of ITO. Moreover, the Al cathode shows elevated vacuum level and reduced interfacial trap density enabled by surface treatment of the active layer with polar methanol. The ITO-Cl/AL/Al-based devices form Ohmic contacts and boost the efficiency of the B1:BTP-eC9 system to 14.86%, which is higher than that of the control device (13.92%) with two IFLs. The use of this TSST strategy in the other two all-small-molecule systems is also confirmed, demonstrating its good generality. This strategy can significantly improve device stabilities, extend the life cycles of ITO substrates, and reduce modules' production costs. © 2021 The Royal Society of Chemistry.
英文关键词	Chlorine compounds; Electrodes; Life cycle; Molecules; Ohmic contacts; Substrates; Surface treatment; Device stability; Elevated vacuums; Interfacial layer; Interfacial trap densities; Small molecule systems; Small molecules; Small-molecule organic solar cells; Solvent treatment; Organic solar cells; detection method; electrode; equipment; fuel cell; perforation; performance assessment; surface energy
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190662
作者单位	Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China; Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi An, 710054, China; Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China; Lab. of Adv. Optoelectron. Materials College of Chemistry Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China; State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China; Beijing National Laboratory for Molecular Sciences, Beijing, 100190, China; Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, 450002, China
推荐引用方式 GB/T 7714	Sun R.,Wu Y.,Guo J.,et al. High-performance all-small-molecule organic solar cells without interlayers[J],2021,14(5).
APA	Sun R..,Wu Y..,Guo J..,Wang Y..,Qin F..,...&Min J..(2021).High-performance all-small-molecule organic solar cells without interlayers.Energy & Environmental Science,14(5).
MLA	Sun R.,et al."High-performance all-small-molecule organic solar cells without interlayers".Energy & Environmental Science 14.5(2021).