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LI Guyue, ZHENG Tianxiang, JIANG Da, XU Jinfeng, SUN Mingjun, SHI Yingdi, ZHANG Yong. Electrochromic Properties of Reticular Tungsten Trioxide/PolythiopheneNanowire Hybrid Structure Film[J]. Materials and Mechanical Engineering, 2021, 45(2): 49-54,95. DOI: 10.11973/jxgccl202102009
Citation: LI Guyue, ZHENG Tianxiang, JIANG Da, XU Jinfeng, SUN Mingjun, SHI Yingdi, ZHANG Yong. Electrochromic Properties of Reticular Tungsten Trioxide/PolythiopheneNanowire Hybrid Structure Film[J]. Materials and Mechanical Engineering, 2021, 45(2): 49-54,95. DOI: 10.11973/jxgccl202102009
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Electrochromic Properties of Reticular Tungsten Trioxide/PolythiopheneNanowire Hybrid Structure Film

  • School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China

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  • Received Date: March 14, 2020
  • Revised Date: November 18, 2020
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    • Abstract
  • The hydrothermal parameters were optimized by orthogonal tests to prepare WO3 nanowires with sodium tungstate as tungsten source, hydrochloric acid as regulator, ammonium sulfate as auxiliary agent, and then the reticular WO3/poly 3,4-ethylenedioxythiophene (PEDOT) nanowire hybrid structure film was prepared by electrodeposition method. The structure and electrochromic properties of the film were studied. The results show that the electrochromic performance of WO3 was optimal under hydrothermal reaction temperature of 190 ℃, time of 4 h and pH of 2, and the contrast was 80.6%. The WO3/PEDOT film with hybrid structure of score-shell nanowire was successfully prepared by electrochemical deposition under optimal hydrothermal conditions, and the outer side of the WO3 monocrystalline nucleus was covered by an amorphous thin shell. Compared with WO3 nanowire and PEDOT, WO3/PEDOT film showed excellent electrochromic and optical modulation properties, fast response speed and good cycling stability. The contrast of the film was 89.1% wth the coloring time of 3.4 s and the fading time of 2.2 s, and after 1 000 cycles, the contrast was retained 98.8%.
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    • References (22)
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