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Issue 42, 2016
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Solution processable neutral state colourless electrochromic devices: effect of the layer thickness on the electrochromic performance

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Abstract

In this study, a neutral state colourless electrochromic device fabricated through a solution process is introduced. The device contains indium doped transparent oxide coated glass as the transparent conductive electrode, poly(N-(2-ethylhexyl)carbazol-3,6-diyl) (PCbz) as the anodically colouring material, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the ion storage layer and a lithium perchlorate based conducting gel electrolyte. A maximum optical contrast (ΔT%) of 58% at 800 nm is achieved by optimizing the film thickness of both the organic layers. The device that has layers of 220 nm PCbz and 120 nm PEDOT:PSS thickness revealed a high coloration efficiency (1246 cm2 C−1) and colouring and bleaching response times of 5.6 s and 2.3 s, respectively.

Graphical abstract: Solution processable neutral state colourless electrochromic devices: effect of the layer thickness on the electrochromic performance

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Publication details

The article was received on 20 Sep 2016, accepted on 09 Oct 2016 and first published on 10 Oct 2016


Article type: Paper
DOI: 10.1039/C6TC04112D
Citation: J. Mater. Chem. C, 2016,4, 10090-10094
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    Solution processable neutral state colourless electrochromic devices: effect of the layer thickness on the electrochromic performance

    G. Tahtali, Z. Has, C. Doyranli, C. Varlikli and S. Koyuncu, J. Mater. Chem. C, 2016, 4, 10090
    DOI: 10.1039/C6TC04112D

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