Affordable Access

deepdyve-link
Publisher Website

Electrically Tailored Metachrosis in ZnO-C Nanowires.

Authors
  • Sow, Bryan Miaoxuan
  • Lim, Kim Yong
  • Wu, Jianfeng
  • Sow, Chorng-Haur
Type
Published Article
Journal
ACS Nano
Publisher
American Chemical Society
Publication Date
Apr 15, 2020
Identifiers
DOI: 10.1021/acsnano.0c00983
PMID: 32293868
Source
Medline
Language
English
License
Unknown

Abstract

Carbon incorporated zinc oxide (ZnO:C) nanowires (NWs) are found to be remarkable morphing nanowires. We show that the physical properties of ZnO:C NW are engineered via the passage of electric current to produce fluorescence differences, negative differential resistance as well as electroluminescence. When a ZnO:C NW is subjected to an applied voltage bias and under ultraviolet (UV) excitation, electron-hole separation due to the voltage biasing suppresses their fluorescence at low voltages. At medium voltages, the NW exhibits metastable chemical changes that translates to tuneable and reversible optical alterations akin to metachrosis found in chameleons. Concurrently, the NW displays electrical alterations with negative differential resistance behaviours. At higher voltages, these NWs are permanently modified with distinct heterogeneous chemical stoichiometry, fluorescence and electronic properties. Such heterogeneity within the NW allows for emergence of junctions capable of electroluminescence.

Report this publication

Statistics

Seen <100 times