| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis and characterization of a low band gap organic semiconducting polymer for organic solar cells |
| 초록 |
A novel organic semiconducting polymer for photovoltaic cells was synthesized and characterized. Low band gap (LBG) materials have been synthesized through Pd(0) catalyzed Suzuki coupling polymerization by controlling the monomer ratios. The synthesized polymers were readily soluble in common organic solvents such as chlorobenzene, toluene, etc and formed uniform thin films after spin coating. The ratio of LBG material in copolymers made the peak and onset absorption of the copolymers moved to longer wavelength region so that energy band gaps of the copolymers became smaller. The maximum UV absorption of the polymer films ranged at 600~650 nm and the optical band gap energies are 1.77~1.65 eV. Energy levels of the highest occupied molecular orbital (HOMO) were also determined by cyclic voltammetry (CV). Photovoltaic devices were fabricated using the copolymers as the p-type donor and C60-PCBM or C70-PCBM as the electron acceptors. |
| 저자 |
김지훈1, 김미리1, 김홍일1, 강인남2, 신원석3, 윤성철3, 문상진3, 이창진3, 황도훈1
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| 소속 |
1금오공과대, 2서울카톨릭대, 3한국화학(연) |
| 키워드 |
semiconducting copolymer; photovoltaic device
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| E-Mail |
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