Probing film-depth-related light harvesting in polymer solar cells via plasma etching

	Probing film-depth-related light harvesting in polymer solar cells via plasma etching
	Gao, Shuang 1,2; Bu, Laju 1,2; Zheng, Zhong 3; Wang, Xudong 4; Wang, Weichen 4; Zhou, Ling 4; Hou, Jianhui 3; Lu, Guanghao 1,2,4
刊名	AIP ADVANCES
	2017-04-01
卷号	7 期号:4
英文摘要	Light harvesting is the first step of photovoltaic process in polymer solar cells. However, such donor: acceptor bulk junction layers are usually featured with vertical phase segregation as well as film-depth-dependent molecular aggregation, chain orientation and crystallinity, leading to a significant variation of photon absorption and exciton generation at different film-depths. We propose an experimentally and numerically accessible method to investigate the depth-dependent light harvesting behaviors in the active layer in polymer solar cells. A low-pressure oxygen plasma is utilized to etch the active layer gradually which is monitored by a light absorption spectrometer. Including the obtained sublayer absorption spectra into transfer matrix optical model yields depth-dependent optical properties and exciton generation profiles, which contribute to quantum efficiency and short-circuit current. This approach is helpful to optimize vertical material variation and provide insights into photovoltaic process. (C) 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/39041]
专题	化学研究所_高分子物理与化学实验室
作者单位	1.Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Peoples R China 2.Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 4.Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710054, Peoples R China
推荐引用方式 GB/T 7714	Gao, Shuang,Bu, Laju,Zheng, Zhong,et al. Probing film-depth-related light harvesting in polymer solar cells via plasma etching[J]. AIP ADVANCES,2017,7(4).
APA	Gao, Shuang.,Bu, Laju.,Zheng, Zhong.,Wang, Xudong.,Wang, Weichen.,...&Lu, Guanghao.(2017).Probing film-depth-related light harvesting in polymer solar cells via plasma etching.AIP ADVANCES,7(4).
MLA	Gao, Shuang,et al."Probing film-depth-related light harvesting in polymer solar cells via plasma etching".AIP ADVANCES 7.4(2017).