Van der waals epitaxial growth of mixed-dimensional 1D/2D heterostructures with tellurium nanowires and transition metal dichalcogenide nanosheets for nonlinear optical applications

Guolin Hao, Jinbiao Xiao, Yulong Hao, Guoliang Zhou, Hao Zhu, Hui Gao, Zhiqiang Xu, Zhongkun Zhao, Lili Miao, Jin Li, Hongtao Sun, Chujun Zhao

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

One-dimensional (1D) tellurium (Te) nanowires (NWs) have triggered intense attention due to their remarkable properties in electronics, optoelectronics and nonlinear optics. However, the saturable absorption properties of Te NWs and the ability to be bleached by strong pulsed energy need to be further improved. Van der Waals (vdW) heterostructures based on two-dimensional (2D) transition metal dichalcogenides (TMDCs) exhibit prominent nonlinear optical properties. Direct epitaxial growth of large-area 1D/2D Te-TMDC vdW heterostructures is still rarely investigated. Herein, we demonstrate the controllable epitaxial growth of large-scale 1D/2D vertical Te-TMDC heterostructures via two-step vapor phase deposition method. Our experimental results have confirmed that the saturable absorption properties of as-prepared Te-TMDC heterostructures can be obviously enhanced. The first principle calculations and surface potential measurements demonstrate that effective interlayer charge transfer between Te NWs and TMDC nanosheets is beneficial for promoting the saturable absorption properties. Systematic investigation of vdW Te-TMDC heterostructures with nonlinear optical properties is vital for the next generation of nanophotonics and integrated photonics, which paves the way for the development of saturable absorbers and light modulators based on Te-TMDC vdW heterostructures.

Original languageEnglish (US)
Article number101069
JournalMaterials Today Physics
Volume34
DOIs
StatePublished - May 2023
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Energy (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Keywords

  • Epitaxial growth
  • Interlayer charge transfer
  • Saturable absorption properties
  • Te-TMDC heterostructures
  • Tellurium nanowires

Fingerprint

Dive into the research topics of 'Van der waals epitaxial growth of mixed-dimensional 1D/2D heterostructures with tellurium nanowires and transition metal dichalcogenide nanosheets for nonlinear optical applications'. Together they form a unique fingerprint.

Cite this