Monolayer MoS2 heterojunction solar cells
Journal
ACS Nano
Journal Volume
8
Journal Issue
8
Pages
8317-8322
Date Issued
2014
Abstract
We realized photovoltaic operation in large-scale MoS2 monolayers by the formation of a type-II heterojunction with p-Si. The MoS 2 monolayer introduces a built-in electric field near the interface between MoS2 and p-Si to help photogenerated carrier separation. Such a heterojunction photovoltaic device achieves a power conversion efficiency of 5.23%, which is the highest efficiency among all monolayer transition-metal dichalcogenide-based solar cells. The demonstrated results of monolayer MoS 2/Si-based solar cells hold the promise for integration of 2D materials with commercially available Si-based electronics in highly efficient devices. © 2014 American Chemical Society.
Subjects
2D material; chemical vapor deposition; heterojunction solar cell; molybdenum disulfide; monolayer
SDGs
Other Subjects
Chemical vapor deposition; Efficiency; Electric fields; Heterojunctions; Layered semiconductors; Molybdenum compounds; Monolayers; Silicon; Silicon compounds; Solar power generation; Sulfur compounds; Transition metals; Built-in electric fields; Heterojunction photovoltaic devices; Heterojunction solar cells; Molybdenum disulfide; Photogenerated carriers; Power conversion efficiencies; Transition metal dichalcogenides; Type II hetero junctions; Silicon solar cells
Type
journal article