| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.543 |
| 발표분야 |
에너지 환경(Energy and Environment) |
| 제목 |
Benzothiadiazole with π-spacer as efficient chromophore for bulk heterojunction organic solar cells |
| 초록 |
This work illustrates the synthesis of donor-π-acceptor-π-donor (D-π-A-π-D) type chromophore (4,7-Bis[2-(3,5-dimethoxyphenyl) ethenyl]-2,1,3-benzothiadiazole, containing 2,1,3-benzothiadiazole as the electron-withdrawing core and dimethoxyphenyl as electron-donating terminal groups via Suzuki cross-coupling reaction. The presence of the ethylene moiety as a polyvalent spacer to expand the π-electron system in BTz(OMe)2 chromophore improved the optical and structural properties. The synthesized BTz(OMe)2 exhibited suitable HOMO and LUMO values of -5.39 eV and -3.56 eV, respectively according to cyclic voltammetry and the optical absorption onset. With BTz(OMe)2:PC61BM (1:4, w/w) blend thin film, a highest power conversion efficiency (PCE) of ~1.98 %, the short circuit current (Jsc) of ~10.46 mA/cm² with an open-circuit voltage (Voc) of ~ 0.622 V were achieved. The obtained results favored BTz(OMe)2 chromophore as a promising donor material for the performance BHJ-OSCs. |
| 저자 |
피자히라미아, 신형식, 사디아 아민, 압둘라, 김은비, 장광수, 알람샤바즈
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| 소속 |
전북대 |
| 키워드 |
에너지 환경 |
| E-Mail |
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| 원문파일 |
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