Self-crack-filled graphene films by metallic nanoparticles for high-performance graphene heterojunction solar cells.

Ho, Po-Hsun; Liou, Yi-Ting; Chuang, Chien-Hsun; Lin, Shih-Wei; Tseng, Chi-Yang; Wang, Di-Yan; Chen, Chia-Chun; Hung, Wen-Yi et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

Graphene, with cracks filled with gold nanoparticles, is grown by chemical vapor deposition on a Cu substrate. The crack-filled graphene not only exhibits superior electrical properties but also forms a better junction with other semiconductors. A high-quality crack-filled graphene/Si Schottky junction solar cell is achieved, demonstrating the highest fill factor (0.79) and best efficiency (12.3%).