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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 and photovoltaic properties of copolymers based on 2,2-(1,5-pentamethylene)-2H-benzimidazole

DC Field Value Language Song, Suhee ko Kang, Ilsoo ko Kim, Gi-hwan ko Jin, Youngeup ko Kim, Il ko Kim, Jin Young ko Suh, Flongsuk ko 2014-04-10T01:13:30Z - 2013-06-05 ko 2012-02 -
dc.identifier.citation SYNTHETIC METALS, v.162, no.1-2, pp.225 - 230 ko
dc.identifier.issn 0379-6779 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract We report synthesis and photovoltaic properties of two new conjugated copolymers with benzimidazole prepared by Stille coupling reaction. The advantage of PMBI is high solubility of the polymer while keeping the coplanarity of the backbone. The electrochemical bandgaps of PCDTPMB15 and PCBBTPMBI5, calculated from cyclic voltammetry data, are about 2.11 and 2.00 eV, respectively. The optical band gap of the synthesized PCDTPMBI5 (1.43 eV) was smaller than that of PCBBTPMBI5 (1.56 eV), caused by lower ICT effect contributed by low molecular weight of PCBBTPMBI5. The devices comprising PCDTPMBI5:PC61BM (1:2) and PCBBTPMBI5:PC61BM (1:3) with thermal treatment showed an open-circuit voltage (V-OC) of 0.27 and 0.30V, a short-circuit current density (J(SC)) of 1.09 and 1.75 mA/cm(2), and a fill factor (FF) of 0.29 and 0.38, giving an power conversion efficiency of 0.09 and 0.20%, respectively. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ELSEVIER SCIENCE SA ko
dc.subject 2,2-(1,5-Pentamethylene)-2H-benzimidazole ko
dc.subject Band gaps ko
dc.subject Benzimidazoles ko
dc.subject Conjugated copolymers ko
dc.subject Coplanarity ko
dc.subject Cyclic voltammetry data ko
dc.subject Fill factor ko
dc.subject High solubility ko
dc.subject Low molecular weight ko
dc.subject OPVs ko
dc.subject Photovoltaic property ko
dc.subject Power conversion efficiencies ko
dc.subject Stille coupling reaction ko
dc.title Synthesis and photovoltaic properties of copolymers based on 2,2-(1,5-pentamethylene)-2H-benzimidazole ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84855879280 ko
dc.identifier.wosid 000300810300034 ko
dc.type.rims ART ko
dc.description.wostc 3 *
dc.description.scopustc 3 * 2015-02-28 * 2014-07-12 *
dc.identifier.doi 10.1016/j.synthmet.2011.12.001 ko
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