Nature Communications (May 2018)

Ultrafast probes of electron–hole transitions between two atomic layers

  • Xiewen Wen,
  • Hailong Chen,
  • Tianmin Wu,
  • Zhihao Yu,
  • Qirong Yang,
  • Jingwen Deng,
  • Zhengtang Liu,
  • Xin Guo,
  • Jianxin Guan,
  • Xiang Zhang,
  • Yongji Gong,
  • Jiangtan Yuan,
  • Zhuhua Zhang,
  • Chongyue Yi,
  • Xuefeng Guo,
  • Pulickel M. Ajayan,
  • Wei Zhuang,
  • Zhirong Liu,
  • Jun Lou,
  • Junrong Zheng

DOI
https://doi.org/10.1038/s41467-018-04291-9
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 9

Abstract

Read online

The investigation into the dynamical transitions of charged quasiparticles on interfaces remains technically challenging. Here, the authors use ultrafast, mid-infrared micro-spectroscopy to unveil the formation of tightly bound interlayer excitons between conducting graphene and semiconducting MoSe2.