Fluorescent simulation and experimental verification of luminescent solar concentrators

• Main Authors: Pin-jen chao, 趙品仁
• Other Authors: Hsi-Fu Shih
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/52702673315079021350

碩士 === 國立中興大學 === 機械工程學系所 === 103 === This thesis explores the characteristics of the fluorescence dye for luminescent solar concentrators (LSCs). This research discusses waveguide intensity by dye concentration change, superposition of different dyes, and LSCs with grating structures. This research applies the Monte Carlo method of the optical software, to simulate the characteristics of the fluorescence dye. Some experimental tests were verified in the research. The simulation items of waveguide intensity contain the dye concentration change, superposition of different dyes, and LSCs with grating structures. The effects of dye concentrations on the intensity of waveguide light of the LSC were investigated. Dyes of different colors have different ranges of absorption wavelength. They can increase the absorption range and the waveguide light intensity. Because of the diffraction effect from the grating, the LSC can produce different spectral effects according to the diffraction angles. The long wavelength of the incident light in the substrate is totally reflected while the short wavelength part is directly absorbed by the dye layer. Dyes can transform the portion of short wavelengths into that of long wavelengths. It makes the solar cell have better absorption. The experiments include the measurement of waveguide intensity with superposition of different dyes, LSCs with structures, and dyes mixed with UV (acrylic resin) and single dyes. The LSC with structures, which was fabricated by photo-lithography processes, used the photoresist as the structure. The experiments were compared with the simulations to verify the consistence between both results. The results of this study show that the experimental waveguide intensity curves are consistent with those of simulations. In the simulation of dye concentration change, the R6G fluorescent dye at high concentration does not enhance the waveguide intensity, which is similar to that in the Wu’s previous measurements.