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• Main Authors: Jun-Yang Lai, 賴浚洋
• Other Authors: An-Chi Wei
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/54807266401418157335

碩士 === 國立中央大學 === 能源工程研究所 === 105 === This paper aims to present a new solution to split solar spectrum. The special point is that this research uses chromatic dispersion to split solar spectrum. The total solar spectrum is divided into two parts: visible part and infrared part. Visible part of solar spectrum is between 380 and 780nm. Infrared part of solar spectrum is between 780nm and 2500nm. In this system, visible part of solar spectrum is directed to left and right side of the waveguide by total internal reflection while infrared part of solar spectrum directly passes through the waveguide. There are special microstructures on the bottom surface of the waveguide, which make this design possible to split solar spectrum. Visible light can be utilized in solar lighting system or silicon solar cells and infrared light can be utilized in thermoelectric devices or Ge(germanium) solar cells. As a result, all spectrum of sunlight can be transformed into useful energy as much as possible. Now the total practical efficiency of this system is about 31.9%.