High-performance electrochromic device based on nanocellulose/polyaniline and nanocellulose/poly(3,4-ethylenedioxythiophene) composite thin films

Sihang Zhang; Runfang Fu; Zoufei Du; Mengjin Jiang; Mi Zhou; Yingchun Gu; Sheng Chen

doi:10.1117/1.OE.56.7.077101

6 July 2017 High-performance electrochromic device based on nanocellulose/polyaniline and nanocellulose/poly(3,4-ethylenedioxythiophene) composite thin films

Sihang Zhang, Runfang Fu, Zoufei Du, Mengjin Jiang, Mi Zhou, Yingchun Gu, Sheng Chen

Author Affiliations +

Optical Engineering, Vol. 56, Issue 7, 077101 (July 2017). https://doi.org/10.1117/1.OE.56.7.077101

Abstract

With the development of nanotechnology, nanocomposite materials based on renewable resources are the focus of this research. Nanocellulose was prepared using sulfuric acid to swell cotton pulp, following with extensive ultrasonication. Nanocellulose/polyaniline (NC/PANI) and nanocellulose/poly(3,4-ethylenedioxythiophene) (NC/PEDOT) nanocomposites with core/shell structure were manufactured by in situ polymerization. The film-forming properties and electrochromic properties of PANI and PEDOT were significantly improved using the nanocellulose as matrix. NC/PANI and NC/PEDOT composite films were studied in single and dual electrochromic devices (ECDs). A viscous gel electrolyte (GE) was used in ECDs. The architectural design of single and dual device was ITO/NC-PANI/GE/ITO or ITO/NC-PEDOT/GE/ITO and ITO/NC-PANI/GE/NC-PEDOT/ITO, respectively. The dual ECD based on NC/PANI and NC/PEDOT composite films exhibited a higher color contrast (30.3%), shortest response time (1.5 s for bleaching and 1.9 s for coloring), largest coloration efficiency (241.6 C/cm^2[/sup]), and best cycling stability (over 150 cycles) compared with the single devices.

Citation Download Citation

Sihang Zhang, Runfang Fu, Zoufei Du, Mengjin Jiang, Mi Zhou, Yingchun Gu, and Sheng Chen "High-performance electrochromic device based on nanocellulose/polyaniline and nanocellulose/poly(3,4-ethylenedioxythiophene) composite thin films," Optical Engineering 56(7), 077101 (6 July 2017). https://doi.org/10.1117/1.OE.56.7.077101

Received: 11 April 2017; Accepted: 14 June 2017; Published: 6 July 2017

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