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A fused-ring based electron acceptor for efficient non-fullerene polymer solar cells with small HOMO offset
Soochow University, Peoples R China; Chinese Academic Science, Peoples R China.
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, Faculty of Science & Engineering.
Chinese Academic Science, Peoples R China; University of Chinese Academic Science, Peoples R China.
Soochow University, Peoples R China.
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2016 (English)In: NANO ENERGY, ISSN 2211-2855, Vol. 27, 430-438 p.Article in journal (Refereed) Published
Abstract [en]

A non-fullerene electron acceptor bearing a novel backbone with fused 10-heterocyclic ring (in-dacenodithiopheno-indacenodiselenophene), denoted by IDTIDSe-IC is developed for fullerene free polymer solar cells. IDTIDSe-IC exhibits a low band gap (E-g=1.52 eV) and strong absorption in the 600850 nm region. Combining with a large band gap polymer J51 (E-g=1.91 eV) as donor, broad absorption coverage from 300 nm to 800 nm is obtained due to complementary absorption of J51 and IDTIDSe-IC, which enables a high PCE of 8.02% with a V-oc of 0.91 V, a J(SC) of 15.16 mA/cm(2) and a FF of 58.0% in the corresponding PSCs. Moreover, the EQE of 50-65% is achieved in the absorption range of IDTIDSe-IC with only about 0.1 eV HOMO difference between J51 and IDTIDSe-IC. (C) 2016 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2016. Vol. 27, 430-438 p.
Keyword [en]
Non-fullerene acceptor; Indacenodithiophene; Polymer solar cells
National Category
Condensed Matter Physics
URN: urn:nbn:se:liu:diva-132487DOI: 10.1016/j.nanoen.2016.07.019ISI: 000384910500047OAI: diva2:1046260

Funding Agencies|National Natural Science Foundation of China [21504062, 21572152]; China Postdoctoral Science Foundation [2015M581853]; Jiangsu Province Postdoctoral Science Foundation [1501024B]; Vinnova [2015-04751]; China Scholarship Council (CSC) [201306730002]; Swedish Research Council (VR) [621-2013-5561]; Swedish Energy Agency [EM 42033-1]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009 00971]; Collaborative Innovation Center of Suzhou Nano Science and Technology; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

Available from: 2016-11-13 Created: 2016-11-12 Last updated: 2016-11-13

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Qian, DepingZhang, Fengling
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