| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO)) |
| 권호 |
22권 1호 |
| 발표분야 |
에너지저장변환_포스터 |
| 제목 |
Reduced Electron Recombination in Tungsten doped TiO2 blocking Layer structure Composed of graded energy level for photo anode in DSSCs |
| 초록 |
The power conversion efficiency of dye-sensitized solar cells (DSSCs) has been limited because electron transport is not fully achieved, and the injected electrons always recombine with the acceptor species before the electrode can collect them. The conduction band of TiO2 shifts postively with increasing the concentration of the Mo content. The concept of introducing metal-doped TiO2 blocking layer into the mesoporous TiO2 network of dye-sensitized solar cells (DSSCs) is proposed to enhance the power conversion efficiency. DSSCs based on Mo-TiO2 blocking layer show an advantage in increasing he charge transport. The charge transfer resistance in DSSC is significantly suppressed by the Mo-doping. As a result of the downward shifted conduction band and increased charge transport, the photocurrent density (Jsc) of the device is improved. The power conversion efficiency (η = 8.03%) is obtained at 4% Mo-doping. |
| 저자 |
김동우, 박목련, Rajesh Cheruku, Suresh Thogiti, 김재홍
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| 소속 |
영남대 |
| 키워드 |
Dye sensitized solar cell; Mo-doped TiO2; blocking layer; conduction band
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| E-Mail |
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