Near-infrared and Multicolor Electrochromic Device Based on Polyaniline Derivative

Zhong-qiu Tong; Hai-ming Lv; Jiu-peng Zhao; Yao Li

doi:10.1007/s10118-014-1483-0

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Near-infrared and Multicolor Electrochromic Device Based on Polyaniline Derivative

Updated：2021-06-21

- Near-infrared and Multicolor Electrochromic Device Based on Polyaniline Derivative
- Chinese Journal of Polymer Science Vol. 32, Issue 8, Pages: 1040-1051(2014)
- Affiliations：
  
  a.Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin 150001, China
  b.School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
- Author bio：
  
  **Yao Li (李垚), E-mail: yaoli@hit.edu.cn
- Funds：
- DOI：10.1007/s10118-014-1483-0
  CLC：
- Received：22 November 2013，
  
  Revised：2014-03-13，
  
  Accepted：24 March 2014，
  
  Published：2014-08
- Accepted：
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Zhong-qiu Tong, Hai-ming Lv, Jiu-peng Zhao, et al. Near-infrared and Multicolor Electrochromic Device Based on Polyaniline Derivative[J]. Chinese Journal of Polymer Science, 2014, 32(8): 1040-1051.
DOI：

Zhong-qiu Tong, Hai-ming Lv, Jiu-peng Zhao, et al. Near-infrared and Multicolor Electrochromic Device Based on Polyaniline Derivative[J]. Chinese Journal of Polymer Science, 2014, 32(8): 1040-1051. DOI： 10.1007/s10118-014-1483-0.

摘要

Abstract

Electroactive conducting copolymers of aniline (ANI) and diphenylamine (DPA) are prepared on indium tin oxide (ITO) surface from 1 mol/L H

aqueous solution with different feed ratios of ANI to DPA by using a potentiostatic method. FTIR spectra and SEM measurements are used to confirm the formation of copolymers. Due to the combination of the

′-diphenyl benzidine and aniline units in the molecular chain

the copolymer films exhibit improved electrochemical and electrochromic properties

compared to PANI and PDPA. The copolymer [marked as P(ANI9-

-DPA1)] film prepared at a ratio of 9:1 (ANI/DPA) exhibits novel transmittance modulation both in visible and near-infrared (NIR) region between −0.8 V and 0.8 V (52% and 67% respectively) and fast response time (3.6 s for coloration and 2.3 s for bleaching at 600 nm). An electrochromic device (ECD) based on P(ANI9-

-DPA1) and PEDOT:PSS is also fabricated and shows a multicolor electrochromic performance

with a good optical contrast (29% in visible region and 40% in NIR region)

acceptable response time (8.3 s for coloration and 7.5 s for bleaching at 600 nm) and long-term stability. Clear color changes from transparent (−0.8 V)

bright green (0 V)

seagreen (0.4 V) to dark slate gray (0.8 V) are demonstrated.

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