Enhanced Efficiency of Graphene-Silicon Schottky Junction Solar Cell through Pyramid Arrays Texturation

Graphene/silicon (Gr/Si) Schottky junction solar cells have attracted extensive research interest due to their simple structure and potential low-cost. Surface texturing is an important part of high-efficiency cells. In this paper, the effects TMAH concentration, IPA concentration etching time on anti-reflection ability silicon pyramid array (SiPa) were systematically studied obtain uniform reliable array. Under optimized conditions, a large scale SiPa with size distribution was obtained applied Gr/Si The results show that etched has better contact between graphene surface, can further improves collecting photogenerated carriers. Compared cells, power conversion efficiency (PCE) Gr/SiPa device 1.66 times higher than Finally, devices PCE 5.67% successfully by HNO3 doping. This work proposes new strategy for improve performance studied. Uniform arrays low reflectivity prepared. surface. could reach up 5.67%.