| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Low-Bandgap Conjugated Polymers with Novel Electron Acceptor for Efficient Photovoltaic Applications |
| 초록 |
Novel electron acceptor such as N-alkyl-2,7-dithia-5-aza-cyclopenta[a]pentalene-4,6-dione(DTPD) based polymer was designed by stille coupling reaction. Ethylhexyl group substituted with BDT polymer (PEBDTPD) shows high short circuit current (~13.6 mA/cm^2), octyl group substituted with BDT polymer (POBDTPD) shows high fill factor. Moreover, we studied optical, electochemical properties. New electron acceptor as DTPD unit has strong electron accepting property lead to low band gap (LBG), two polymers showed strong absorption from 400 to 800 nm. Also, PEBDTPD and POBDTPD has narrow band gap 1.40 eV and 1.34 eV respectively. Organic photovoltaic performance based on polymers were evaluated with configuration of ITO/PEDOT:PSS/Active layer/TiO2/Al. Power conversion efficiency(PCE) of up to 5% were achieved under AM 1.5G simulated solar light (100 mW cm^-2). Our research suggest that DTPD presenting suitable electron-withdrawing groups are promising photovoltaic materials. |
| 저자 |
김슬옹1, 김윤희1, 김연수2, 윤희준1, 강일1, 윤영운2, 김홍곤2, 고민재2, 김봉수2, 김경곤3, 권순기1
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| 소속 |
1경상대, 2KIST, 3이화여자대 |
| 키워드 |
유기태양전지; 고분자태양전지; 활성층재료; 장파장흡수; Electron Donor Polymer
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| E-Mail |
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