Li+ doped chitosan-based solid polymer electrolyte incorporated with PEDOT:PSS for electrochromic device

• Published in: Journal of the Turkish Chemical Society, Section A, Chemistry Vol. 5; no. 3; pp. 1413 - 1422
• Main Author: Eren,Esin
• Format: Journal Article
• Language: English
• Published: Türkiye Kimya Derneği 01-09-2018
• Subjects: Kimya; İstanbul; Türkiye; Chitosan; Electrolyte; Electrochromic Device; PEDOT:PSS
• ISSN: 2149-0120
• DOI: 10.18596/jotcsa.433901

In this study, solid polymer electrolyte-based on chitosan was prepared with addition of PEDOT:PSS, lithium trifluoromethane sulfonate, propylene carbonate by solvent casting technique. The chitosan-based polymer electrolytes without PEDOT:PSS, with PEDOT:PSS were characterized using electrochemical impedance spectroscopy. The ionic conductivity value was calculated as 4.2 x 10-4 S/cm for the chitosan-based electrolyte including PEDOT:PSS. The SPE having good ionic conductivity was used to fabricate electrochromic device with glass/ITO/WO3|PEDOT:PSS-Ch-LiTRIF-PC|ITO/glass whose performance was evaluated via cyclic voltammetry, transmittance, and repeating chronoamperometry. The optical contrast of ECD was attained as 22% at 800 nm, resulting in a coloration efficiency of 67 cm2/C. The ECD displays fast response time for coloration (tc ), which is 0.29 s. Upon reversal of potential bleaching (tb ) forms within 3 s. The findings demonstrated that this SPE electrolyte has promising candidate for use in optoelectronic applications.