skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on June 25, 2019

Title: Electrochemically Triggered Metal-Insulator Transition between VO 2 and V 2O 5

Distinct properties of multiple phases of vanadium oxide (VO x) render this material family attractive for advanced electronic devices, catalysis, and energy storage. In this work, phase boundaries of VO x are crossed and distinct electronic properties are obtained by electrochemically tuning the oxygen content of VO x thin films under a wide range of temperatures. Reversible phase transitions between two adjacent VO x phases, VO 2 and V 2O 5, are obtained. Cathodic biases trigger the phase transition from V 2O 5 to VO 2, accompanied by disappearance of the wide band gap. The transformed phase is stable upon removal of the bias while reversible upon reversal of the electrochemical bias. The kinetics of the phase transition is monitored by tracking the time-dependent response of the X-ray absorption peaks upon the application of a sinusoidal electrical bias. The electrochemically controllable phase transition between VO 2 and V 2O 5 demonstrates the ability to induce major changes in the electronic properties of VO x by spanning multiple structural phases. This concept is transferable to other multiphase oxides for electronic, magnetic, or electrochemical applications.
Authors:
ORCiD logo [1] ;  [1] ;  [2] ;  [2] ;  [3] ;  [4] ;  [2] ;  [5]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Lab. for Electrochemical Interfaces; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Materials Science and Engineering
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Materials Science and Engineering
  5. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Lab. for Electrochemical Interfaces; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Materials Science and Engineering
Publication Date:
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231; DMR‐1419807
Type:
Accepted Manuscript
Journal Name:
Advanced Functional Materials
Additional Journal Information:
Journal Volume: 0; Journal Issue: 0; Journal ID: ISSN 1616-301X
Publisher:
Wiley
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; National Science Foundation (NSF); USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ambient‐pressure X‐ray photoelectron spectroscopy; phase transitions; vanadium oxides
OSTI Identifier:
1461946
Alternate Identifier(s):
OSTI ID: 1457196

Lu, Qiyang, Bishop, Sean R., Lee, Dongkyu, Lee, Shinbuhm, Bluhm, Hendrik, Tuller, Harry L., Lee, Ho Nyung, and Yildiz, Bilge. Electrochemically Triggered Metal-Insulator Transition between VO2 and V2O5. United States: N. p., Web. doi:10.1002/adfm.201803024.
Lu, Qiyang, Bishop, Sean R., Lee, Dongkyu, Lee, Shinbuhm, Bluhm, Hendrik, Tuller, Harry L., Lee, Ho Nyung, & Yildiz, Bilge. Electrochemically Triggered Metal-Insulator Transition between VO2 and V2O5. United States. doi:10.1002/adfm.201803024.
Lu, Qiyang, Bishop, Sean R., Lee, Dongkyu, Lee, Shinbuhm, Bluhm, Hendrik, Tuller, Harry L., Lee, Ho Nyung, and Yildiz, Bilge. 2018. "Electrochemically Triggered Metal-Insulator Transition between VO2 and V2O5". United States. doi:10.1002/adfm.201803024.
@article{osti_1461946,
title = {Electrochemically Triggered Metal-Insulator Transition between VO2 and V2O5},
author = {Lu, Qiyang and Bishop, Sean R. and Lee, Dongkyu and Lee, Shinbuhm and Bluhm, Hendrik and Tuller, Harry L. and Lee, Ho Nyung and Yildiz, Bilge},
abstractNote = {Distinct properties of multiple phases of vanadium oxide (VOx) render this material family attractive for advanced electronic devices, catalysis, and energy storage. In this work, phase boundaries of VOx are crossed and distinct electronic properties are obtained by electrochemically tuning the oxygen content of VOx thin films under a wide range of temperatures. Reversible phase transitions between two adjacent VOx phases, VO2 and V2O5, are obtained. Cathodic biases trigger the phase transition from V2O5 to VO2, accompanied by disappearance of the wide band gap. The transformed phase is stable upon removal of the bias while reversible upon reversal of the electrochemical bias. The kinetics of the phase transition is monitored by tracking the time-dependent response of the X-ray absorption peaks upon the application of a sinusoidal electrical bias. The electrochemically controllable phase transition between VO2 and V2O5 demonstrates the ability to induce major changes in the electronic properties of VOx by spanning multiple structural phases. This concept is transferable to other multiphase oxides for electronic, magnetic, or electrochemical applications.},
doi = {10.1002/adfm.201803024},
journal = {Advanced Functional Materials},
number = 0,
volume = 0,
place = {United States},
year = {2018},
month = {6}
}