| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
고분자 |
| 제목 |
Low-Band Gap Polymers with Novel Electron Acceptor for Efficient Solar Cells (OPVs) |
| 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 alkyl group substituted with dialkoxybenzodithiophene(BDT) polymer (PEBDTPD) shows high short circuit current (~13.6 mA/cm2), 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, two polymers showed strong absorption from 400 to 800 nm. Also, PEBDTPD and POBDTPD has low band gap 1.40 eV and 1.34 eV respectively. OPV based on polymers were evaluated with configuration of ITO/PEDOT:PSS/Active layer/TiO2/Al. PCE of up to 5% were achieved under AM 1.5G simulated solar light (100 mW/cm2). Our research suggest that DTPD presenting suitable electron-withdrawing groups are promising photovoltaic materials. |
| 저자 |
윤희준1, 김슬옹1, 김유헌1, 성민재1, 김봉수2, 김경곤2, 김윤희1, 권순기1
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| 소속 |
1경상대, 2이화여자대 |
| 키워드 |
OPV; D-A polymer; Low-bandgap polymer
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| E-Mail |
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