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Chin. Phys. B, 2018, Vol. 27(12): 127802    DOI: 10.1088/1674-1056/27/12/127802
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Influences on oxidation voltage and holding time on poly(3-methylthiophene) film for electrochromic stability

Bo Zhang(张波), Chen Xu(徐晨), Guo-Yue Xu(徐国跃), Chu-Yang Liu(刘初阳), Hong-Han Bu(卜红寒), Jian-Chao Zhang(张建超)
College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Abstract  

In this study, we report the influences of oxidation potential and holding time on the electrochromic (EC) stability of poly(3-methylthiophene) (P3MT) film during the electrochemical reaction. The cycle stability and transmittance changes of the film were investigated by optimizing the oxidation potential, and its chemical compositions were measured by x-ray photoelectron spectra after multiple electrochemical cycles. High oxidation potentials can increase the P3MT film color contrast and decrease its cycle stability because of accelerating chemical decomposition. Moreover, the holding time with potential pulsing was analyzed by using the optical memory of P3MT at an optimized oxidation potential, which revealed the reduced voltage duration saved energy consumption by 11.6% and improved the EC cycle stability without changing in color contrast.

Keywords:  electrochromism      P3MT      oxidation potential      cycle stability  
Received:  08 June 2018      Revised:  25 September 2018      Accepted manuscript online: 
PACS:  78.20.Jq (Electro-optical effects)  
  42.70.Jk (Polymers and organics)  
  81.15.-z (Methods of deposition of films and coatings; film growth and epitaxy)  
  81.70.-q (Methods of materials testing and analysis)  
Fund: 

Project supported by the National Natural Science Foundation of China (Grant No. 51403102) and the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20140811).

Corresponding Authors:  Bo Zhang     E-mail:  zhangbo8916@163.com

Cite this article: 

Bo Zhang(张波), Chen Xu(徐晨), Guo-Yue Xu(徐国跃), Chu-Yang Liu(刘初阳), Hong-Han Bu(卜红寒), Jian-Chao Zhang(张建超) Influences on oxidation voltage and holding time on poly(3-methylthiophene) film for electrochromic stability 2018 Chin. Phys. B 27 127802

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