The optical and electrical properties of V2O5-TiO2/PI Nanocomposite film prepared by the Sol-Gel method

IF 3.1 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-01-11 DOI:10.1016/j.infrared.2025.105719

Haoting Zhang , Yi Li , Weiye He , Chang Xue , Weiye Peng , Hongwei Liu , Wei Wang , Zhangqing Shi , Wenyan Dai , Zhen Yuan , Ke Lin

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引用次数: 0

Abstract

In this study, nanoscale V₂O₅ film and V₂O₅-TiO₂ composite film were prepared by the sol–gel method and post-annealing process utilizing polyimide (PI) as the substrates. The properties of the composite films were characterized by examining the surface morphology, elemental composition, and optical and electrical properties. The results demonstrate that the films maintain the flexibility of the substrate, while TiO₂ doping effectively enhances the optical and electrical properties of the V₂O₅/PI. In the range of 750–1200 nm, the maximum transmittance of the V₂O₅-TiO₂/PI film is increased by 5.77 % compared to the V₂O₅/PI film. At room temperature, the resistance of the film was significantly reduced by 96.4 % compared to the V₂O₅/PI film. In the context of thermotropic phase transitions, the phase transition temperature of V₂O₅-TiO₂/PI film decreased to 213 ℃. Through many times repeated bending and temperature cycling, the films can maintain good optical and electrical properties, which is expected to be applied to flexible semiconductors and integrated optoelectronic devices.

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.