An organic-organic hybrid system composed of the polyaniline (PANI) and poly-(3,4-ethylenedioxythiophene) (PEDOT) with controlled thickness was developed successfully in order to realize synergetic effects in electrochromic (EC) properties such as optical contrast and color-switching rate. From the UV transmittance spectra, we found that the optical contrast (Δ%T) was enhanced up to 6-72% at the wavelength of 580 nm compared with the previous PANI-PEDOT ECDs. Furthermore, the optimized ECD showed an extremely fast response time of less than 160 ms. It is therefore concluded that such a complementary full .cell system of PEDOT-PANI ECD is applicable as an optical device.
Bibliographical noteFunding Information:
This work was supported by the SRC program of MOST/KOSEF through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (Grant no. R11-2005-008-00000-0 ). Joo-Hee Kang is grateful to the Ministry of Education for the Brain Korea 21 (BK21) fellowship.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films