Electrochromic device of PEDOT-PANI hybrid system for fast response and high optical contrast

Joo Hee Kang, Yeon Ji Oh, Seung Min Paek, Seong Ju Hwang, Jin Ho Choy

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)2040-2044
Number of pages5
JournalSolar Energy Materials and Solar Cells
Issue number12
Publication statusPublished - 2009 Dec

Bibliographical note

Funding 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


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