Electron injection assisted phase transition in a nano-Au-VO2 junction

Gang Xu, C. M. Huang, Masato Tazawa, Ping Jin, D. M. Chen, L. Miao

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The semiconductor-metal transition of vanadium dioxide (VO2) thin films epitaxially grown on C-plane sapphire is studied by depositing Au nanoparticles onto the thermochromic films forming a metal-semiconductor contact, namely, a nano-Au-VO2 junction. It reveals that Au nanoparticles have a marked effect on the reduction in the phase transition temperature of VO2. A process of electron injection in which electrons flow from Au to VO2 due to the lower work function of the metal is believed to be the mechanism. The result may support the Mott-Hubbard phase transition model for VO2.

Original languageEnglish
Article number061911
JournalApplied Physics Letters
Volume93
Issue number6
DOIs
Publication statusPublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Electron injection assisted phase transition in a nano-Au-VO<sub>2</sub> junction'. Together they form a unique fingerprint.

  • Cite this