期刊
ENERGY TECHNOLOGY
卷 3, 期 10, 页码 1045-1050出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201500128
关键词
carbon nanotubes; concentrating solar power; indium-tin oxide; solar-thermal energy; spectral selectivity
资金
- Israel-Strategic Alternative Energy Foundation (ISAEF)
- Israel National Nanotechnology Initiative (FTA)
- NTU-HUJI-BGU Nanomaterials for Energy and Water Management Program under the Campus for Research Excellence and Technological Enterprise (CREATE) - National Research Foundation, Prime Minister's Office, Singapore
We report the fabrication of a new selective inverse tandem absorbing coating based on carbon nanotube (CNT)/indium-tin oxide (ITO) on aluminium (A1) for midtemperature solar-thermal application. The CNT layer is formed by spraying and functions as an excellent solar absorber whereas the ITO layer produced on top of the CNTs by sputtering serves as an IR reflector. The effect of the thickness of the ITO on the spectral selectivity of the absorbing coating was investigated. Controlling the thickness of ITO allowed the spectral selectivity of the coating to be tuned. The CNT/ITO solar coatings with optimized thickness of ITO showed excellent spectral selectivity values of absorptance (alpha) of 0.927 and emittance (epsilon) of 0.2. The performance of the coatings at high temperature after heating in air in the range of 25-300 degrees C for different durations was also investigated. The performance and structure of the CNT/ITO coating was also compared with the wet deposition method in which the ITO coating was formed by spraying.
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