Non-fullerene acceptor with low energy loss and high external quantum efficiency: towards high performance polymer solar cells
2016 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488, Vol. 4, no 16, 5890-5897 p.Article in journal (Refereed) PublishedText
A non-fullerene electron acceptor bearing a fused 10-heterocyclic ring (indacenodithiophenoindacenodithiophene) with a narrow band gap (similar to 1.5 eV) was designed and synthesized. It possesses excellent planarity and enhanced effective conjugation length compared to previously reported fused-ring electron acceptors. When this acceptor was paired with PTB7-Th and applied in polymer solar cells, a power conversion efficiency of 6.5% was achieved with a high open circuit voltage of 0.94 V. More significantly, an energy loss as low as 0.59 eV and an external quantum efficiency as high as 63% were obtained simultaneously.
Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016. Vol. 4, no 16, 5890-5897 p.
IdentifiersURN: urn:nbn:se:liu:diva-128773DOI: 10.1039/c6ta00612dISI: 000374790700016OAI: oai:DiVA.org:liu-128773DiVA: diva2:931771
Funding Agencies|National Natural Science Foundation of China [21504062, 21202114, 21204054, 51303118, 91333204]; Natural Science Foundation of Jiangsu Province [BK20130289]; China Postdoctoral Science Foundation Funded Project [2015M581853]; Jiangsu Province Postdoctoral Science Foundation Funded Project [1501024B]; Priority Academic Program Development of Jiangsu Higher Education Institutions; Programs Foundation of the Ministry of Education of China ; Beijing National Laboratory for Molecular Sciences ; State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; CSC; Open Research Fund of State Key Lab of Silicon Materials (Zhejiang University); Knut and Alice Wallenberg foundation; Science Council, Sweden2016-05-302016-05-302016-05-30