| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션) |
| 권호 |
20권 1호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Synthesis of Random and Alternating Copolymers Using Fluorene and Difluoro-Quinoxaline for Photovoltaics |
| 초록 |
Synthesis of new random and alternating copolymers using difluro-quinoxaline and fluorene was carried out by Stille and Suzuki coupling reaction. In these polymers, difluro-quinoxaline was used as electorn-deficient unit and fluorene was used as electron-rich unit. The polymers showed good solubility in organic solvents such as chloroform, toluene, chlorobenzene and o-dichlorobenzene (ODCB). These polymers showed an optical bandgap of 1.98 to 2.16 eV, with highest occupied molecular orbital (HOMO) energy of -5.60 to -5.72eV. The decomposition temperatures (Td) at 5% of the polymers were measured at approximately 415℃. All the polymers displayed absorption spectra in the range of 400 – 580 nm in chloroform solution state and 400 – 650 nm in film state. Under optimized conditions, the best efficiency among the polymers was achieved in random copolymer (ratio of 3:2) with 3.55% of maximum power conversion efficiencies (PCE), Voc of 0.91 V, Jsc of 6.05 mA/cm2, FF of 0.64%. |
| 저자 |
이원문, 이지훈, 이근대, 박성수, 박성흠, 진영읍
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| 소속 |
부경대 |
| 키워드 |
OPVs; PSCs
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| E-Mail |
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