Monolayer MoS2 heterojunction solar cells

Meng-Lin Tsai, Shenghan Su, Jankai Chang, Dungsheng Tsai, Changhsiao Chen, Chih I. Wu, Lain-Jong Li, Lihjuann Chen, Jr-Hau He

Research output: Contribution to journalArticlepeer-review

827 Scopus citations

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.
Original languageEnglish (US)
Pages (from-to)8317-8322
Number of pages6
JournalACS Nano
Volume8
Issue number8
DOIs
StatePublished - Jul 25 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Materials Science(all)
  • Engineering(all)

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