▎ 摘　　要

The present paper concentrates on quantum dot based solar cell through the principle of photonics. In this research, quantum dots deal with multilayer of graphene sheet where principle of photonics manipulates with the analysis of reflection, absorbance and transmittance of the proposed cell. Further an individual dissection of absorbance for different layers in the solar cell claims that more than 99 % absorbance could be possible in graphene based quantum dot layer pertaining to the signal of visible regime (380 nm-750 nm), however the final result indicates that the efficiency of generation of e-p pair in the solar cell is varied from 90.6 % to 95.2 %.