| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Effect of lithium ions captured by thiophene-based block copolymers on Photovoltaic performance |
| 초록 |
Self-assembly of poly(3-hexylthiophene) (P3HT) driven by π-π stacking, combined with “Host-Guest chemistry” of ethylene glycol oligomer and lithium ion is demonstrated using a thiophene-based all conjugated amphiphilic block copolymer, containing 93 mol% of P3HT and 7 mol % of poly(3-(2-(2-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxy}-ethyl))thiophene), P3EGT blocks. An ion chelating ability of ethylene glycol oligomers with lithium ions in the P3EGT block is confirmed using 1H-NMR spectrometry. This method could allow positioning lithium ions at the interface between P3HT domains and PC61BM clusters, confirmed using XRD and photoluminescence quenching experiments. The compact lamellar P3HT domains by side repulsion driven self-assembly of amphiphilic block copolymer and the molecular engineering of the interface with an optimized lithium contents are resulted in the high improvement of photovoltaic performance in an organic solar cell. |
| 저자 |
손성윤1, 임민정2, 문병준3, 박태호1
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| 소속 |
1포항공과대, 2LG생활건강, 3한국과학기술(연) |
| 키워드 |
Lithium ions; Host-guest chemistry; All-conjugated amphiphilic block copolymer
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| E-Mail |
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