Monolayer MoS2 Heterojunction Solar Cells
ACS Nano2014Vol. 8(8), pp. 8317–8322
Citations Over TimeTop 1% of 2014 papers
Meng‐Lin Tsai, Sheng‐Han Su, Jan‐Kai Chang, Dung‐Sheng Tsai, Chang‐Hsiao Chen, Chih‐I Wu, Lain‐Jong Li, Lih‐Juann Chen, Jr‐Hau He
Abstract
We realized photovoltaic operation in large-scale MoS2 monolayers by the formation of a type-II heterojunction with p-Si. The MoS2 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 MoS2/Si-based solar cells hold the promise for integration of 2D materials with commercially available Si-based electronics in highly efficient devices.
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