制备三氧化钨紫外光电探测器及其形貌调控  

Preparation of tungsten trioxide ultraviolet photodetectors and their morphological modulation

作　　者：王丽莹 张林 李雪松[1] 曲莹 吕威[1] WANG Liying;ZHANG Lin;LI Xuesong;QU Ying;LYU Wei(School of Materials Science&Engineering,Changchun University of Technology,Changchun 130102,China;Jilin Ryder Chemical Technology Co.Ltd.,Longtan District,Jilin 132000,China)

机构地区：[1]长春工业大学材料科学与工程学院,吉林长春130102 [2]吉林莱德化学科技有限公司,吉林吉林132000

出　　处：《长春工业大学学报》2023年第1期8-14,F0003,共8页Journal of Changchun University of Technology

基　　金：国家自然科学基金项目(62004015);吉林省科技计划项目(20220101235JC)。

摘　　要：WO_(3)作为一种n型宽禁带半导体,在紫外光电探测器领域具有广阔的前景。由于纳米结构WO_(3)具有较大的比表面积,因此形貌调控对于WO_(3)紫外光电探测器光电性能有很大影响。通过控制溶液浓度的方式分别合成不同形貌的WO_(3),并进一步以制作浆料的方式将WO_(3)均匀覆盖在FTO上,以此充当光电探测器的光阳极。实验发现,在光照功率为45 mW/cm^(2)的紫外光(365 nm)照射下,不同浓度制备的WO_(3)紫外光电探测器均表现出良好的光电性能。其中以海胆状结构的紫外光电探测器的光响应电流和响应速度最佳。As an n-type broadband semiconductor, WO_(3)has a promising future in the field of UV photodetectors. Due to the large specific surface area of nanostructured WO_(3), morphology modulation has a significant impact on the optoelectronic performance of WO_(3)UV photodetectors. By controlling the concentration of the solution, different shapes of WO_(3)were synthesised and furthermore, WO_(3)was uniformly covered with FTO in the form of slurry to act as the photoanode of the photodetector. It was found that the WO_(3)UV photodetectors prepared at different concentrations exhibited good optoelectronic performance under the irradiation of UV light(365 nm) at a light power of 45 mW/cm^(2), The best photoresponse current and response speed were obtained for the sea urchin-shaped UV photodetector.

关 键 词：WO_(3) 水热法 光阳极 紫外光探测 

分 类 号：TN23[电子电信—物理电子学] TB383.1[一般工业技术—材料科学与工程]