화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals, Vol.564, 169-177, 2012
Poly(3,4-Ethylenedioxythiophene)-Indium Tin Oxide Nanocomposites: Improved Electrochromic Response and Efficiency
Poly(3,4-ethylenedioxythiophene) (PEDOT)-indium tin oxide (ITO) nanocomposites were synthesized via a solution route. The electrochromic behavior of the devices was investigated in terms of particle sizes, dispersibility and electrical conductivity of the nanocomposites. The electrical conductivity of PEDOT-ITO composite thin films were in the range of 0.1 similar to 15 S/cm with transparency changes from 25% to 85%. The electrochromic properties of the nanocomposite as an active material for the devices (ECDs) are discussed in terms of conductivity and transparency. The electrochromic behavior was confirmed with colored state and blanched state at +3.1 V similar to-2.9 V which transparency difference about 50 similar to 60% at 600 nm. The switching speeds of the ECD are closely correlated with the changes in the electrical conductivity and the morphology of the nanocomposite.