| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Vacuum Processed Diketopyrrolopyrrole (DPP) based Random Copolymer with Ratio Controlled Toluene- and Benzene- Groups:PC71BM Bulk-Heterojunction for Efficient Organic Solar cells |
| 초록 |
We synthesized diketopyrrolopyrrole (DPP) donor polymers with ratio-controlled toluene- versus benzene-chemical group and mixed with a fullerene acceptor. The random copolymeric donor materials have been known as their suitable film-forming characteristics and phase-separated nano-morphology. Moreover, we investigated to fabricate an efficient donor-acceptor with improved electrical properties through a vacuum treatment. The vacuum process leads to increased phase-separation with a low surface roughness and nanoscale-distributed crystallinity due to optimized evaporation of the residual solvent in the bulk-heterojuction active layer. Therefore, the optimized devices from vacuum process using DPP-based donor materials with toluene (T) versus benzene (B) linkers and an electron transporting layer contribute to an improvement in the electrical parameters and the power conversion efficiencies of up to 6.31% due to the efficient charge transfer and reduced series resistance at the devices. |
| 저자 |
박소연1, Xiaofeng Tan2, 장웅식1, 안선용1, 김윤희2, 권순기2, 왕동환1
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| 소속 |
1중앙대, 2경상대 |
| 키워드 |
Organic photovoltaic device; nanomorphology; diketopyrrolopyrrole; vacuum treatment; random copolymer; kink donor
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| E-Mail |
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