Multi-color electrochromic device based on organic electrochromic materials

Jiyea Lee, Yuna Kim, Youngjung Kim, Jehoon Baek, Eunkyoung Kim

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Multi-color electrochromic (EC) device was fabricated on a patterned ITO glass. Organic electrochromic dyes were encapsulated within nano-sized porous TiO2 nanoparticles, and their relative electrochromic (EC) properties were determined using spectroelectrochemical method. Blue, green, and red colored organic dye doped TiO2 nanoparticles were coated on a patterned ITO substrate to afford multi-colored EC electrode, which was coated with a photo-curable polymer electrolyte and then covered with a bare ITO glass as a counter electrode. Upon photocuring of the electrolyte layer under UV light, an all-solid state multi-colored electrochromic device (ECD) was obtained. The resultant ECD showed reversible multi-color change within 8 sec and high optical contrast.

Original languageEnglish
Pages (from-to)74-79
Number of pages6
JournalMolecular Crystals and Liquid Crystals
Publication statusPublished - 2008

Bibliographical note

Funding Information:
We acknowledge the financial support of Ministry of Commerce, Industry and Energy of Korea (MOCIE), and the Ministry of Science and Technology (MOST) of Korea (No. R11-2007-050-01001-0).

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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