Journal
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Volume 45, Issue 4, Pages 5544-5554Publisher
WILEY
DOI: 10.1002/er.6182
Keywords
infrared focusing system; infrared reflection system; solar cell; solar energy; solar panel; thermophotovoltaic cell
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This article explores a new technique using solar radiation in infrared wavelengths to improve the efficiency of traditional solar cells. Experimental findings indicate that impurity content and substrate temperature during film preparation significantly affect transparency and IR reflection. Further experiments show that light reflection from films increases with the thickness of the silver layer, falling into two categories of specular and diffuse reflections. Ultimately, a new generation of solar panels combining solar cells, IR reflective coating, and thermophotovoltaic cells is proposed to enhance the efficiency of solar energy conversion into electricity.
In this article, using solar radiation in infrared (IR) wavelengths, a new technique is investigated to increase the efficiency of conventional solar cells. The experiments on indium tin oxide (ITO), fluorine-doped tin oxide (FTO), and antimony-doped tin oxide (ATO) films showed that the impurity content and the substrate temperatures, while preparing the films, play a significant role in transparency and IR reflection of the final products. The investigation for ITO/Ag/ITO, ATO/Ag/ATO, and FTO/Ag/FTO films indicated that the reflection of the light increases with the growth of the silver layer thickness. Various experiments demonstrate that light reflection from thin films falls into two categories of specular and diffuse reflections. Eventually, considering simulation and experiment results, a new generation of solar panels was introduced by combining three technologies, including solar cells, IR reflective coating, and thermophotovoltaic cells, which will enhance the efficiency of solar energy conversion into electricity.
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