Solar cell module colored with fluorescent plate

In order to color the solar cell module with a small decrease in energy con version efficiency, a fluorescent plate was used as a protecting plate for the module. The effect of the coloration on the energy conversion efficienc y was discussed on the basis of a simple model for the absorption and re-em ission of light in the fluorescent plate and spectral reflection of the sol ar cell module. The measured energy conversion efficiency of the colored so lar cell module was comparable to that of the non-colored module, when the fluorescent quantum efficiency was nearly equal to 1.0. The coloration of g reen yielded a 2.7% increase in energy conversion efficiency, and the color ations of orange, pink, and red, could be made with 0.5%, 1.5% and 5.5% dec rease in energy conversion efficiency. The small increase in energy convers ion efficiency was attributable to the fact that the reflectivity of the co lored module was a little less than that of the non-colored module. (C) 200 0 Elsevier Science B.V. All rights reserved.