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Enhancement of the light harvesting efficiency in a dye-sensitized solar cell by a patterned reflector
- Enhancement of the light harvesting efficiency in a dye-sensitized solar cell by a patterned reflector
- Kim, Jeong-Hwa; Kim, Dae-Hwan; Kim, Kang-Pil; Jeon, Dong-Hwan; Hwang, Dae-Kue
- DGIST Authors
- Kim, Dae-Hwan; Kim, Kang-Pil; Hwang, Dae-Kue
- Issue Date
- Thin Solid Films, 546, 326-330
- Article Type
- Article; Proceedings Paper
- Current Density-Voltage Characteristics; Dye-Sensitized Solar Cell; Dye-Sensitized Solar Cells (DSCs); Light-Harvesting; Light-Harvesting Efficiency; Light Reflection; Optical Analysis; Optical Simulation; Photoelectrochemical Cells; Power Conversion Efficiencies; Reflection; Reflector; Solar Cells
- Light harvesting efficiency plays an important role in improving the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). Many researchers have employed a scatter layer to improve the light harvesting efficiency of DSSCs. In this paper, we propose a different DSSC structure that employs a patterned reflection layer toenhance the light harvesting efficiency and improve the PCE by reusing reflected light. Optical simulation data were collected through an optical analysis according to various patterns of the reflection layer. The optical simulation results revealed that thelight harvesting efficiency of a rectangular patterned reflection layer was higher than that of other patterns. We evaluated the cell efficiency with current density-voltage characteristic curves by a solar simulator. The DSSC structures with a rectangular patterned reflection layer exhibited higher current densities and higher PCE values (22% enhancement) than those of traditional DSSCs, because light that passed through thephotoanode was reflected, thereby making it possible to reuse it. © 2013 Elsevier B.V.
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- Convergence Research Center for Solar Energy1. Journal Articles
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