The silicon layer doped oxide microparticles is placed behind the LSC. The layer can let light leaving the concentrator partially reflect or scatter back to the concentrator, which can improve the light-receiving efficiency of concentrators and increase the short-circuit currents of solar cells. The layer can also control the amount of light leaving concentrators, which can determine the brightness of rooms. The silicon layer doped oxide microparticles is not only simple in process, but also similar to the luminescent layer in the LSC process. It can be directly grown on the luminescent layer and increase the speed of manufacture.

1.At present, the existing patent does not utilize the silicon layer doped oxide microparticles to improve the light-receiving efficiency of the LSC and increase the short-circuit current of the solar cell. Existing patents all use geometric shapes or mirrors or lenses to enhance the light guiding capabilities of the solar concentrators.
2.In the present technology, the microparticles of titanium dioxide, silicon dioxide, and aluminum oxide are each doped to the silicon layer for the process of the silicon layer doped oxide microparticles. Regardless of whether the silicon layer doped oxide microparticles is attached or coated under the luminescent layer, the different transmittances of the concentrators can be obtained by using different oxide doping amounts. The silicon layer doped oxide microparticles can also improve the light-receiving efficiency of the concentrator and increase the short-circuit current of the solar cell in the LSC. Therefore, if the modified LSC with the silicon layer doped oxide microparticles is applied to the glass windows of buildings, it not only can make the house have different amount of sunlight and brightness, but also can improve the light-receiving efficiency of the glass window and increase the short-circuit current of the solar cell in the modified LSC.
3.The silicon layer doped oxide microparticles is not only simple in process, but also similar to the luminescent layer in the LSC process. It can be directly grown on the luminescent layer and increase the speed of manufacture. The cost is relatively cheap due to the reduction of one substrate.
4.It is impossible to use the evaporation or sputtering method to grow the film on the low temperature resistant luminescent layer. And the present technology can make the silicon layer doped oxide microparticles grow on the low temperature resistant luminescent layer.

能源短缺與全球暖化導致的氣候變遷，使得人們持續地關注太陽能發電技術，其中螢光太陽能集光器相關技術可增加照射在太陽能板的表面光強度，提高太陽能電池的輸出電流，就一直成為人們注意焦點。而本技術改良的螢光粉太陽能集光器可應用於一般建築的玻璃窗戶，不僅可使屋內具有不同的陽光量與亮暗程度，且可提升玻璃窗戶的收光效率，提高太陽能板發電電流與發電效率。