Electrochemical and optical properties of WO3:X sol-gel coatings (X=Li, Ti, Nb, Ta)

Cesar O. Avellaneda; Luis O. Bulhoes

doi:10.1117/12.406485

13 November 2000 Electrochemical and optical properties of WO₃:X sol-gel coatings (X=Li, Ti, Nb, Ta)

Cesar O. Avellaneda, Luis O. Bulhoes

Proceedings Volume 4104, Organic Photorefractives, Photoreceptors, and Nanocomposites; (2000) https://doi.org/10.1117/12.406485
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Electrochromic behavior of amorphous tungsten oxide (formula available in paper)doped films was investigated. The addition of titanium (5 %mol), noibium (5 %mol), tantalum (5 %mol) and lithium salt (15 %mol) to the precursor solutions leads to films with different electrochemical performance. The electrochormic properties of these films were investigated by in situ spectroelectrochemical method exhibiting a blue coloration under Li⁺ insertion with a reversible variation of the transmittance in the visible and near infrared range between 10% and 90%. The electrochemical and optical responses of the films were obtained from the cyclic voltammetry measurements using propylene carbonate with 0.1M LiC1O₄ as electrolyte. The bleaching process in the lithium doped films occurs in a few seconds and faster response for the bleaching was obtained for WO₃:Li:Ti film.

Citation Download Citation

Cesar O. Avellaneda and Luis O. Bulhoes "Electrochemical and optical properties of WO₃:X sol-gel coatings (X=Li, Ti, Nb, Ta)", Proc. SPIE 4104, Organic Photorefractives, Photoreceptors, and Nanocomposites, (13 November 2000); https://doi.org/10.1117/12.406485

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