气候变化领域集成服务门户(CCPortal): Photogeneration and the bulk quantum efficiency of organic photovoltaics

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DOI	10.1039/d0ee03885g
	Photogeneration and the bulk quantum efficiency of organic photovoltaics
	Ding K.; Huang X.; Li Y.; Forrest S.R.
发表日期	2021
ISSN	17545692
起始页码	1584
结束页码	1593
卷号	14 期号:3
英文摘要	We introduce a method to analyze the performance of bulk heterojunction (BHJ) organic photovoltaics (OPVs) by calculating its "bulk quantum efficiency"(BQE), a quantity related to the recombination losses within the BHJ, but not in the surrounding device layers. By applying the method to both vacuum- and solution-processed OPVs with various BHJ, buffer layers and interface layer compositions, we show that measurements of the BQE isolates the properties of the BHJ from other device layers and interfaces. We use measurements of the BQE to study various mechanisms in OPV degradation and find that for solution-processed OPVs with a ZnO cathode buffer layer, the BHJ undergoes degradation due primarily to the ZnO. By inserting a self-assembled monolayer at the interface between the buffer and the BHJ, the stability of the OPV is significantly improved. © 2021 The Royal Society of Chemistry.
英文关键词	Buffer layers; Efficiency; Heterojunctions; II-VI semiconductors; Oxide minerals; Zinc oxide; Bulk heterojunction (BHJ); Cathode buffer layers; Interface layer; Measurements of; Organic photovoltaics; Photogeneration; Recombination loss; Solution-processed; Quantum efficiency; efficiency measurement; photodegradation; photovoltaic system; quantum mechanics
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/190744
作者单位	Department of Physics, University of Michigan, Ann Arbor, MI 48109, United States; Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109, United States; Departments of Material Science and Engineering, University of Michigan, Ann Arbor, MI 48109, United States
推荐引用方式 GB/T 7714	Ding K.,Huang X.,Li Y.,et al. Photogeneration and the bulk quantum efficiency of organic photovoltaics[J],2021,14(3).
APA	Ding K.,Huang X.,Li Y.,&Forrest S.R..(2021).Photogeneration and the bulk quantum efficiency of organic photovoltaics.Energy & Environmental Science,14(3).
MLA	Ding K.,et al."Photogeneration and the bulk quantum efficiency of organic photovoltaics".Energy & Environmental Science 14.3(2021).