The InnovationQ application will be updated on Sunday, May 31st from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

Electrochemical, RuO(2)-Based Light Switch

IP.com Disclosure Number: IPCOM000052660D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue


Related People

Cuomo, JJ Sambucetti, CJ Yu, DS [+details]


A light-based switch based on plating-deplating cycles is described using a RuO(2) film on glass which is in contact with an electrochromic liquid. Transparent or semitransparent metal electrodes made of tin oxide and indium oxide films deposited on glass have been known for a long time. It is also possible to fabricate such conductive films made of noble metals, such as Au or Pt. But none of these materials can be used reliably as an internal electrode in an electrochemical cell due to anodic dissolution and corrosion.