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Cu2O Thin Films as the Color-Adjusting Layer in Semi-Transparent a-Si:H Solar Cells
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- Authors
- Seong Hyun Lee, Sun Jin Yun, Myunghun Shin, Jung Wook Lim
- Issue Date
- 2013-10
- Citation
- Solar Energy Materials & Solar Cells, v.117, pp.519-525
- ISSN
- 0927-0248
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- We investigated penetration-type semi-transparent hydrogenated amorphous silicon (a-Si:H) solar cells that incorporated cuprite (Cu2O) thin films, deposited by radio frequency magnetron sputtering, as the color-adjusting layer. Depending on the arrangement of the Cu2O and transparent conductive oxide layers in the cells, the cells could be classified as either inner-type or outer-type. By simulating and experimentally measuring the reflectance of both types of cells, it was found that the optical interference in the two cells had a more significant effect on the short-circuit current density than did the thickness of the incorporated Cu2O films. We fabricated a-Si:H cells whose transparency and color could be controlled simultaneously. This technique of fabricating a-Si:H cells that exploit the phenomenon of interference can be used to realize cells that exhibit different colors. © 2013 Elsevier B.V.
- KSP Keywords
- Hydrogenated amorphous silicon, Radio-frequency magnetron sputtering, Semi-transparent, Short circuit current density, a-Si:H solar cells, optical interference, oxide layer, thin film(TF), transparent conductive oxide