Aligned coaxial tungsten oxide-carbon nanotube sheet: a flexible and gradient electrochromic film

Chem Commun (Camb). 2012 Aug 25;48(66):8252-4. doi: 10.1039/c2cc32925e. Epub 2012 Jul 12.

Abstract

We develop a simple dry wrapping method to fabricate a tungsten oxide (WO(3))/carbon nanotube (CNT) cable, in which WO(3) layers act as an electrochromic component while aligned CNTs as the core provide mechanical support and an anisotropic, continuous electron transport pathway. Interestingly, the resultant cable material exhibits an obvious gradient electrochromic phenomenon.