| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Efficient Light Trapping with Micro-Patterned Three Dimensional Pyramidal Photoanodes in Dye-Sensitized Solar Cells |
| 초록 |
Light trapping in photovoltaic devices has attracted a great deal of attention because of the intrinsic limitation in film thickness of the charge generation layer. For dye sensitized solar cells (DSCs), which have low-cost of fabrication and high power conversion efficiency, the light trapping strategy is particularly useful to enhance the photo current generation. In the present study, we introduce a novel strategy to trap incident light effectively by three dimensionally patterned TiO2 photoanodes in DSCs. Among different geometries of the electrodes fabricated by the soft lithographic technique, pyramid-shaped TiO2 photoanodes show the highest absorbance and photocurrent-voltage performance, originating from the total reflection at the interfaces between TiO2 photoanodes and bulk electrolyte. In order to create even cheaper three dimensional pattern masters, randomized pyramid structures were prepared by the texturing of crystalline silicon substrates with anisotropic wet etching. |
| 저자 |
우상혁1, 윤현식2, 이용건3, 고재현4, 강용수5, 차국헌1
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| 소속 |
1지능형유도조합체연구단, 2에너지환경 화학융합기술전공, 3서울대, 4서울과학기술대, 5한양대 |
| 키워드 |
Dye-Sensitized Solar Cells; Light Trapping; Three Dimensional Electrode; Soft Molding
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| E-Mail |
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