Semiconductor-to-metallic phase transitions in VO2/gold nanocomposite materials

Keith L. Lewis; Andrew M. Pitt; Richard M. Bennett

doi:10.1117/12.406482

13 November 2000 Semiconductor-to-metallic phase transitions in VO₂/gold nanocomposite materials

Keith L. Lewis, Andrew M. Pitt, Richard M. Bennett

Proceedings Volume 4104, Organic Photorefractives, Photoreceptors, and Nanocomposites; (2000) https://doi.org/10.1117/12.406482
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Vanadium dioxide is well known for its thermochromic characteristics arising from a semiconductor to metallic phase transition at 68 degree(s)C. The optical properties of the material on each side of the phase transition are relatively well established and the change in refractive index as a result of heating allows the exploitation of the material in fast optical switching devices. Whilst switching speeds of the order of a few nanoseconds can be readily achieved, the properties of high temperature phases are less than optimal, due to the imperfect nature of the metallic state. This paper examines the feasibility of enhancing the metallic phase properties through the realisation of a noncomposite formed as a result of the reactive co-sputtering of vanadium and gold in an oxygen environment. The vanandium reacts with oxygen during the reactive sputtering process to produce VO₂ whilst the gold is unchanged and appears as a discrete phase in the oxide host.

Citation Download Citation

Keith L. Lewis, Andrew M. Pitt, and Richard M. Bennett "Semiconductor-to-metallic phase transitions in VO₂/gold nanocomposite materials", Proc. SPIE 4104, Organic Photorefractives, Photoreceptors, and Nanocomposites, (13 November 2000); https://doi.org/10.1117/12.406482

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available