dc.citation.conferencePlace |
KO |
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dc.citation.conferencePlace |
창원 |
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dc.citation.number |
2 |
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dc.citation.title |
2012년 한국고분자학회 추계총회 및 연구논문발표회 |
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dc.citation.volume |
37 |
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dc.contributor.author |
Yang, Changduk |
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dc.contributor.author |
김보람 |
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dc.contributor.author |
염혜림 |
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dc.contributor.author |
김기환 |
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dc.contributor.author |
김진영 |
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dc.date.accessioned |
2023-12-20T01:40:17Z |
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dc.date.available |
2023-12-20T01:40:17Z |
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dc.date.created |
2013-07-17 |
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dc.date.issued |
2012-10-11 |
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dc.description.abstract |
We have synthesized a selenophene analogue of PCDTBT, namely, PCDSeBT, in which diselenienylbenzothiadiazole (DSeBT) monomer alternately flanks with 2,7-carbazole unit. The intrinsic properties of PCDSeBT are not only characterized by UV-vis absorption, cyclic voltammetry (CV), and organic field-effect transistors (OFETs) but also the surface morphology, mobilities of space charge-limited current (SCLC) model, and polymer solar cells (PSCs) in its bulk-heterojunction (BHJ) active layer with PC71BM are evaluated in detail. It is found that PCDSeBT has a low-lying HOMO energy level at -5.4 eV and a low bandgap of 1.70 eV as required by the ideal polymers for BHJ PSCs. The high current of 11.7 mA/cm2 is obtained for PCDSeBT-based PSCs. The high JSC value, along with a moderate fill factor (FF) of 45% and a high open-circuit voltage (VOC) of 0.79 V, yields a power conversion efficiency (PCE) of 4.12%, which is about 37% increase in PCE from a PCDTBT-based reference device. |
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dc.identifier.bibliographicCitation |
2012년 한국고분자학회 추계총회 및 연구논문발표회, v.37, no.2 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/43102 |
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dc.language |
영어 |
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dc.publisher |
한국고분자학회 |
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dc.title |
Replacing thiophene with selenophene in PCDTBT to lower LUMO for efficient polymer solar cells |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2012-10-11 |
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