| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Effect of the electron-withdrawing groups on DPP-based small molecules for OPVs |
| 초록 |
Organic photovoltaic cells (OPVs) have the advantages of flexible, low cost, and bulk production. Various donor-acceptor type low-band gap small molecules and polymers have been developed showing high power conversion efficiencies upto 10%. In addition, the introduction of electron-withdrawing groups such as halogens and carbonyls into the molecular backbone of donor materials has resulted in high-performance OPV cells. We prepared a series of diketopyrrolopyrrole-thiophene-based small molecules containing various electron withdrawing substituents of cyanide, nitro, and ester groups by Suzuki coupling reaction in good yields. The physical properties including thermal, optical, and electrochemical properties varied according to the introduced substituents. OPV cells were fabricated using new small molecules as donors as well as acceptors in active layers. |
| 저자 |
엄윤호1, 김유정1, 조아라1, 송창은2, 고영한1, 김승연1, 이태호1, 문상진2, 임은희1
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| 소속 |
1경기대, 2한국화학(연) |
| 키워드 |
photovoltaic; OPV; organic solar cell
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| E-Mail |
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