气候变化领域集成服务门户(CCPortal): A new dialkylthio-substituted naphtho[2;3-: C] thiophene-4;9-dione based polymer donor for high-performance polymer solar cells

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DOI	10.1039/c8ee03608j
	A new dialkylthio-substituted naphtho[2;3-: C] thiophene-4;9-dione based polymer donor for high-performance polymer solar cells
	Wu Y.; Yang H.; Zou Y.; Dong Y.; Yuan J.; Cui C.; Li Y.
发表日期	2019
ISSN	1754-5692
起始页码	675
结束页码	683
卷号	12 期号:2
英文摘要	Rational molecular design towards high-performance photovoltaic materials with superior large-area capability is critical but still a challenge for the research field of polymer solar cells (PSCs). In this work, we design and synthesize a new dialkylthio-substituted conjugated polymer donor (namely PBN-S) to address this issue. PBN-S shows strong absorbance in the wavelength range of 500-700 nm and has a low-lying HOMO level of-5.48 eV, which matches that of the nonfullerene acceptor IT-4F. Optimized PSCs based on PBN-S:IT-4F demonstrate a high power conversion efficiency (PCE) of 13.10%, benefitting from the efficient charge separation, high and balanced charge mobility, ordered molecular packing and aggregation of the donor and acceptor materials in the active layer. In addition, the PCE of a PBN-S based semitransparent PSC reaches 9.83% with an average visible transmittance of 32%. What is more, remarkable PCEs of 10.21% and 10.69% were realized from spin-coated or blade-coated PSCs with an active area of 100 mm 2 , respectively, indicating the great potential of PBN-S as a donor in high-performance large-area PSC application. More importantly, the PBN-S based devices show excellent shelf-life stability, retaining over 80% of their initial PCE after 100 days storage in a nitrogen-filled glove-box or in air. These results demonstrate the promising capability of PBN-S as a donor material for future PSC applications. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Conjugated polymers; Plastic coatings; Solar cells; Solar power generation; Donor and acceptor; High performance Polymer solar cells; High power conversion; Low-lying HOMO levels; Molecular packings; Photovoltaic materials; Polymer solar cell (PSCs); Visible transmittance; Polymer solar cells; chemical compound; efficiency measurement; electrode; fuel cell; performance assessment; polymer; transmittance; wavelength
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162850
作者单位	Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China; Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, China; CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
推荐引用方式 GB/T 7714	Wu Y.,Yang H.,Zou Y.,et al. A new dialkylthio-substituted naphtho[2;3-: C] thiophene-4;9-dione based polymer donor for high-performance polymer solar cells[J],2019,12(2).
APA	Wu Y..,Yang H..,Zou Y..,Dong Y..,Yuan J..,...&Li Y..(2019).A new dialkylthio-substituted naphtho[2;3-: C] thiophene-4;9-dione based polymer donor for high-performance polymer solar cells.Energy and Environmental Science,12(2).
MLA	Wu Y.,et al."A new dialkylthio-substituted naphtho[2;3-: C] thiophene-4;9-dione based polymer donor for high-performance polymer solar cells".Energy and Environmental Science 12.2(2019).