| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Efficient Conventional- and Inverted-type Photovoltaic Cells Using a Planar Alternating Polythiophene Copolymer |
| 초록 |
A low band gap alternating copolymer, poly{5,6-bis(octyloxy)-4-(thiophen-2-yl)benzo[c][1,2,5]thiadiazole} (PTBT), has been prepared and investigated for photovoltaic applications. PTBT shows a minimized torsional angle in the main backbone due to the introduction of solubilizing octyloxy groups on the electron-poor benzothiadiazole unit. By blending PTBT with PC61BM, highly promising performance is achieved with PCEs of 5.9% and 5.3% for conventional and inverted devices. Ideal film morphology with bicontinuous percolation pathways is expected from AFM images, SCLC mobility and SAED measurements. This study suggests an important molecular design strategy how to achieve a simple, processible and planar D-A type low band gap polymer. |
| 저자 |
이원호1, 최효성2, 황승구1, 김진영2, 우한영1
|
| 소속 |
1부산대, 2UNIST |
| 키워드 |
polymer solar cells; low band gap polymer
|
| E-Mail |
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