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Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs


Synthesis of the novel 2,2-bithiophene-3,3-dicarboximide-based conjugated copolymers for OPVs

DC Field Value Language Song, Suhee ko Kim, Taehyo ko Bang, Su Yeon ko Heo, Mihee ko Kim, Jinwoo ko Jin, Youngeup ko Kim, Ii ko Kim, Jin Young ko Suh, Hongsuk ko 2014-04-10T02:34:56Z - 2013-08-28 ko 2013-08 -
dc.identifier.citation SYNTHETIC METALS, v.177, no., pp.65 - 71 ko
dc.identifier.issn 0379-6779 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract A new accepter unit, 4H-dithieno[3,2-c:2′,3′-e]azepine-4,6(5H)- dione, was prepared and utilized for the synthesis of the conjugated polymers containing electron donor-acceptor pair for OPVs. The dithienoazepinedione, bithiophene imide (BTI) group, is an attractive electron deficient unit since it demonstrates strong electron-withdrawing character, a planar architecture, and good solubility. The polymer with linear dodecyl-BTI unit and benzodithiophene unit substituted with bulky 2-octyldodecyl side chain was synthesized using Stille polymerization to generate P1. The new polymer, P2, was also synthesized by Suzuki polymerization of carbazole, thiophene and linear octyl BTI unit to increase conjugation length. The spectra of P1 and P2 solid films show absorption bands with maximum peaks at 395, 538 and 380, 491 nm, and the absorption onsets at 652 and 634 nm, corresponding to band gaps of 1.90 and 1.96 eV, respectively. The best device with P1: PC71BM in ODCB with 2% DIO showed a VOC of 0.97 V, a JSC of 3.06 mA/cm2, and a FF of 0.49, which yielded PCE of 1.49%. The highest PCE of P2:PC71PM (1:2) solar cells reaches 0.76% with a VOC of 0.84 V, a JSC of 2.48 mA/cm2, and a FF of 0.36. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ELSEVIER SCIENCE SA ko
dc.subject Conjugated copolymers ko
dc.subject Dithienoazepinedione ko
dc.subject Electron donor acceptors ko
dc.subject Electron-deficient units ko
dc.subject Electronwithdrawing ko
dc.subject Photovoltaics ko
dc.subject Planar architecture ko
dc.subject Suzuki polymerization ko
dc.title Synthesis of the novel 2,2-bithiophene-3,3-dicarboximide-based conjugated copolymers for OPVs ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84880080637 ko
dc.identifier.wosid 000323592600005 ko
dc.type.rims ART ko
dc.description.wostc 2 *
dc.description.scopustc 2 * 2014-10-18 * 2014-07-12 *
dc.identifier.doi 10.1016/j.synthmet.2013.06.012 ko
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