Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (10): 20230203.doi: 10.7503/cjcu20230203

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

High-performance Electro-optical Dual-control Color-changing Devices Based on WO3/Ag and TiO2/NiO/CdS Composite Electrodes

LIU Chunlei, YANG Jikai(), LIU Yulin, LI Siyuan, LIU Haorui   

  1. School of Physics,Changchun University of Science and Technology,Changchun 130022,China
  • Received:2023-04-23 Online:2023-10-10 Published:2023-06-28
  • Contact: YANG Jikai E-mail:jikaiyang0625@163.com
  • Supported by:
    the Project of Education Department of Jilin Province, China(JJKH20220726KJ);the Project of Science and Technology Department of Jilin Province, China(20200201077JC);the Natural Science Foundation of Chongqing City, China(CSTB2022NSCQ-MSX0751)

Abstract:

Electrochromic technology has been widely used in the field of smart windows, but the electrochromic process still needs to be completed by applying an external voltage. The electro-optical dual-control color-changing device constructed by combining electrochromic devices with solar cells does not require external power supply to achieve smart color-changing control. The color-changing cathode and photoanode with excellent performance are very important for electro-optical dual-control color-changing devices. WO3/Ag composite films were prepared by hydrothermal method combined with electrodeposition method and their electrochromic properties were studied. TiO2/NiO/CdS composite films were prepared by hydrothermal method, electrodeposition method combined with continuous ion layer deposition method and their photoelectric conversion properties were studied. Finally, WO3/Ag composite films and TiO2/NiO/CdS composite films were used as color-changing cathode and photoanode, respectively, to construct electro-optical dual-control WO3/Ag-CdS/NiO/TiO2 color-changing devices. The WO3/Ag-CdS/NiO/TiO2 electro-optical dual-control color-changing device has a relatively fast optical-control response time(82.4 s/135.6 s for coloring/bleaching) and a good optical modulation range(30.4% at 630 nm). It has a wide application prospect as a color-changing smart window in the fields of construction and automobile.

Key words: Photoelectrochromic device, Photoelectric conversion, WO3/Ag composite film, TiO2/NiO/CdS composite film

CLC Number: 

TrendMD: