Photogalvanic Effect in Nitrogen-Doped Monolayer MoS2 from First Principles

  title={Photogalvanic Effect in Nitrogen-Doped Monolayer MoS2 from First Principles},
  author={Wen-Ming Luo and Zhi-Gang Shao and Mou Yang},
  journal={Nanoscale Research Letters},
We investigate the photogalvanic effect in nitrogen-doped monolayer molybdenum disulfide (MoS2) under the perpendicular irradiation, using first-principles calculations combined with non-equilibrium Green function formalism. We provide a detailed analysis on the behavior of photoresponse based on the band structure and in particular the joint density of states. We thereby identify different mechanisms leading to the existence of zero points, where the photocurrent vanishes. In particular, while… 
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