| Semiconductor material has been widely used in many fields such as energy saving,artificial intelligence and solving environmental and energy problems because of its excellent photoelectric performance.How to improve the electrochromic and the photocatalytic performance of the semiconductor materials in a stable and effective manner has become a research focus.In order to prepare semiconductor film which has better electrochromic and photocatalytic performance,we considered to study on the WO3/Au composite thin films and the WO3/Pt composite thin films.The main research includes:?1?The preparation process of the WO3 nano-rods films was based on F-doped tin Oxide?FTO?by using hydrothermal method.Different WO3 nano-rods film samples were prepared by changing the hydrothermal temperature?120?,150?,180??.The synthesis and characterization of the WO3 nano-rods films were performed by XRD and SEM.The electrochromic reversibility,coloration efficiency and the switching time of the samples was obtained from the electrochemical testing methods including fast cyclic voltammetry,chronoamperometry and chronelectricity.The photoelectrocatalytic properties of the samples was obtained from the photocurrent and the photoelectric catalysis.The analysis results show the WO3 nano-rods films samples with a hydrothermal temperature of 150 ? have the best photoelectrochemical performance than hydrothermal temperature 120?and 180? samples.?2?The preparation process of the WO3/Au composite films was based on the WO3 nano-rods films which shows the best photoelectrochemical performance by using electrodeposition method.Different WO3/Au composite films samples were prepared by changing the deposition time?40s,80 s,120s?.The synthesis and characterization of the WO3/Au composite films were performed by XRD and SEM.The electrochromic reversibility,coloration efficiency and the switching time of the samples was obtained from the electrochemical testing methods including fast cyclic voltammetry,chronoamperometry and chronelectricity.The photoelectrocatalytic properties of the samples was obtained from the photocurrent and the photoelectric catalysis.The analysis results show the WO3/Au composite films samples with a deposition time of 80 s have the best photoelectrochemical performance than the samples which deposition time is 40 s and 120 s.Besides,the photoelectric performance of the WO3/Au composite film is significantly improved compared to single WO3 nano-rods film.?3?The preparation process of the WO3/Pt composite films was based on the WO3 nano-rods films which shows the best photoelectrochemical performance by using electrodeposition method.Different WO3/Pt composite films samples were prepared by changing the deposition time?40s,80 s,120s?.The synthesis and characterization of the WO3/Pt composite films were performed by XRD and SEM.The electrochromic reversibility,coloration efficiency and the switching time of the samples was obtained from the electrochemical testing methods including fast cyclic voltammetry,chronoamperometry and chronelectricity.The photoelectrocatalytic properties of the samples was obtained from the photocurrent and the photoelectric catalysis.The analysis results show the WO3/Pt composite films samples with a deposition time of 40 s have the best electrochromic performance than the samples which deposition time is 80 s and 120 s.And samples with a deposition time of 80 s have the best photocatalytic performance than the samples which deposition time is 40 s and 120 s.Besides,the photoelectric performance of the WO3/Pt composite film is significantly improved compared to single WO3 nano-rods film. |
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