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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry


High electron mobility fluorinated indacenodithiophene small molecule acceptors for organic solar cells

DC Field Value Language Pan, Fei ko Li, Xiaojun ko Bai, Song ko Liu, Tianhao ko Wei, Xian ko Li, Yingfen ko Chen, Shanshan ko Yang, Changduk ko Chen, Xiwen ko Lv, Menglan ko Li, Yongfang ko 2021-06-10T07:53:52Z - 2021-06-07 ko 2021-03 ko
dc.identifier.citation CHINESE CHEMICAL LETTERS, v.32, no.3, pp.1257 - 1262 ko
dc.identifier.issn 1001-8417 ko
dc.identifier.uri -
dc.description.abstract Indacenodithiophene (IDT) derivatives are kinds of the most representative and widely used cores of small molecule acceptors (SMAs) in organic solar cells (OSCs). Here we systematically investigate the influence of end-group fluorination density and position on the photovoltaic properties of the IDT-based SMAs IDIC-nF (n = 0, 2, 4). The absorption edge of IDIC-nF red-shifts with the pi-pi stacking and crystallinity improvement, and their electronic energy levels downshift with increasing n. Due to the advantages of J(sc) and FF as well as acceptable V-oc, the difluorinated IDIC-2F acceptor based OSCs achieve the highest power conversion efficiency (PCE) of 13%, better than the OSC devices based on IDIC and IDIC-4F as acceptors. And the photovoltaic performance of the PTQ10: IDIC-2F OSCs is insensitive to the active layer thickness: PCE still keep high values of 12.00% and 11.46% for the devices with active layer thickness of 80 and 354 nm, respectively. This work verifies that fine and delicate modulation of the SMAs molecular structure could optimize photovoltaic performance of the corresponding OSCs. Meanwhile, the thickness-insensitivity property of the OSCs has potential for large-scale and printable fabrication technology. (C) 2020 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved. ko
dc.language 영어 ko
dc.publisher ELSEVIER SCIENCE INC ko
dc.title High electron mobility fluorinated indacenodithiophene small molecule acceptors for organic solar cells ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85092611338 ko
dc.identifier.wosid 000642400700009 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.cclet.2020.08.051 ko
dc.identifier.url ko
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