Crystalline-Si photovoltaic devices with ZnO nanowires
| Autor: | Siou-Yi Lin, Jia-Min Shieh, Cheng-Liang Hsu, Tsung-Ying Tsai, Ting-Jen Hsueh, Bau-Tong Dai, W. Y. Weng |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment business.industry Photovoltaic system Energy conversion efficiency Nanowire Zno nanowires chemistry.chemical_element Zinc Green-light medicine.disease_cause Hydrothermal circulation Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry medicine Optoelectronics business Ultraviolet |
| Zdroj: | Solar Energy Materials and Solar Cells. 98:494-498 |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2011.11.029 |
| Popis: | The growth of ZnO nanowires (NWs) on a zinc oxide (ZnO)/textured crystalline-Si (c-Si) photovoltaic device via the hydrothermal method is investigated. The average length and diameter of the ZnO NWs are around 0.65 μm and 70–100 nm, respectively. Experimental results indicate that a ZnO/textured c-Si photovoltaic device with ZnO NWs has the lowest reflectance among the tested substrates, especially in the range of ultraviolet (UV) and green light (350 nm to 590 nm). Compared to SiN x /textured c-Si and ZnO/textured c-Si photovoltaic devices, the proposed device exhibits photovoltaic conversion efficiency improvements of around 7% and 6.3%, respectively. After encapsulation, the ZnO NWs/ZnO/textured c-Si photovoltaic device has the lowest drop in conversion efficiency. Furthermore, a small NW diameter increases light absorption. |
| Databáze: | OpenAIRE |
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