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Enhancement of the light harvesting efficiency in a dye-sensitized solar cell by a patterned reflector

Title
Enhancement of the light harvesting efficiency in a dye-sensitized solar cell by a patterned reflector
Authors
Kim, Jeong-HwaKim, Dae-HwanKim, Kang-PilJeon, Dong-HwanHwang, Dae-Kue
DGIST Authors
Kim, Dae-HwanKim, Kang-PilHwang, Dae-Kue
Issue Date
2013-11-01
Citation
Thin Solid Films, 546, 326-330
Type
Article
Article Type
Article; Proceedings Paper
Keywords
Current Density-Voltage CharacteristicsDye-Sensitized Solar CellDye-Sensitized Solar Cells (DSCs)Light-HarvestingLight-Harvesting EfficiencyLight ReflectionOptical AnalysisOptical SimulationPhotoelectrochemical CellsPower Conversion EfficienciesReflectionReflectorSolar Cells
ISSN
0040-6090
Abstract
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.
URI
http://hdl.handle.net/20.500.11750/5293
DOI
10.1016/j.tsf.2013.03.062
Publisher
Elsevier
Related Researcher
Files:
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Collection:
Convergence Research Center for Solar Energy1. Journal Articles


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