Enhanced photovoltaic performances of graphene/Si solar cells by insertion of a MoS2thin film

• DOI: 10.1039/c5nr03046c
• Publication Date: 2015-08-10T10:00:32Z
• Authors: Yuka Tsuboi; Feijiu Wang; Daichi Kozawa; Kazuma Funahashi; Shinichiro Mouri; Yuhei Miyauchi; Taishi Takenobu; Kazunari Matsuda
• Keywords: Condensed Matter - Materials Science; Materials Science (cond-mat.mtrl-sci); FOS: Physical sciences; 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 7. Clean energy; 0104 chemical sciences; 3. Good health

Transition-metal dichalcogenides exhibit great potential as active materials in optoelectronic devices because of their characteristic band structure. Here, we demonstrated that the photovoltaic performances graphene/Si Schottky junction solar cells were significantly improved by inserting a chemical vapor deposition (CVD)-grown, large MoS2 thin-film layer. This layer functions an effective electron-blocking/hole-transporting We also properties are enhanced with increasing number graphene layers and decreasing thickness A high conversion efficiency 11.1% was achieved optimized trilayer-graphene/MoS2/n-Si cell.