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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


An Indacenodithiophene-Quinoxaline Polymer Prepared by Direct Arylation Polymerization for Organic Photovoltaics

DC Field Value Language Chen, Shanshan ko Lee, Kyu Cheol ko Zhang, Zhi-Guo ko Kim, Dong Suk ko Li, Yongfang ko Yang, Changduk ko 2016-01-12T05:54:32Z - 2016-01-05 ko 2016-01 ko
dc.identifier.citation MACROMOLECULES, v.49, no.2, pp.527 - 536 ko
dc.identifier.issn 0024-9297 ko
dc.identifier.uri -
dc.description.abstract Seeking preparation of high-performance donor-acceptor (D-A) polymers based on bare thiophene units in a more environmentally friendly and faster way, we have carried out a direct arylation polymerization (DAP) of two starting beta-unprotected thiophene-containing monomers (indacenodithiophene (IDT) and thiophene-quinoxaline-thiophene (TQ)). Through modulating DAP time and heating method, the resulting IDT-TQpolymer shows a relatively well-defined structure with low content of structural defects, as demonstrated by high temperature H-1 NMR, MALDI-TOF-MS, and elemental analysis. Integrating this polymer into bulk-heterojunction solar cells with PC71BM can induce an enhanced OPV performance compared to the other structural analogues that retain a certain amount of unwanted structural defects. However, the film morphology and crystallinity are negligibly influenced by the degree of the structural defects. Through a combination of detailed electrical measurements using light intensity dependence and net photocurrent, we are able to correlate the different photovoltaic performances in structure-function relationships with the extent of the structural defects. Our study indicates that DAP is a promising asset for environmental production of many valuable thiophene-containing polymers for electroactive and photoactive applications. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title An Indacenodithiophene-Quinoxaline Polymer Prepared by Direct Arylation Polymerization for Organic Photovoltaics ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84962323644 ko
dc.identifier.wosid 000368950900011 ko
dc.type.rims ART ko
dc.identifier.doi 10.1021/acs.macromol.5b02324 ko
dc.identifier.url ko
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