掺杂氧化物半导体纳米晶制备及其光电性能
关键词 光探测器 氧化锆纳米晶 浸渍法 紫外吸收峰
毕业论文设计说明书外文摘要
Title Preparation of doped oxide semiconductor nanocrystals
______ and its photoelectric performance________________
Abstract
This subject mainly studies the zirconium oxide nanocrystals and light detector manufacturing,zirconium oxide nanocrystals has special optical and electrical properties,so it has a good application prospect in the field of manufacturing and improving the light detector.This experiment adopts the precursor carrier solution impregnation method of preparing zirconium oxide nanocrystals and its process mainly includes preparation of zirconium compound liquid,cotton fiber impregnated,centrifugal drying and washing with distilled water,and dried by vacuum heat treatment to get zirconium oxide nanocrystals,and to make light detector and test the optical responsivity.Finally come to the conclusion:when the impregnating solution’s pH=2,the cotton fiber slowly heated to 600℃，thermal insulation 1h can produce better zirconia nanocrystals,the UV absorption wavelength is at about 270nm.Scanning electron microscopy observes that zirconium oxide nanocrystals’s surface is porous,these holes is left in high temperature oxidation.
Keywords Dtector Zrconium-nanocrystals Impregnation Ultraviolet-absorption
目 次
1 绪论 1
1.1 二氧化锆 1
1.1.1 二氧化锆的性质 1
1.1.2 二氧化锆的用途 1
1.1.3 二氧化锆纤文的制备方法 2
1.1.4 二氧化锆纤文的性质 3
1.1.5 二氧化锆的研究现状和发展趋势 3
1.2 前驱体载体溶液浸渍法 4
1.2.1 浸渍法的机理 4
1.2.2 浸渍法的优缺点 5
2 实验部分 6
2.1 仪器和试剂 6
2.1.1 仪器 6
2.1.2 试剂 7
2.2 实验方案和流程图 7
2.2.1 实验方案 7
2.2.2 实验流程图 7
2.3 实验操作 8
2.4 热处理温度的控制 10
2.5 匀胶旋涂 10
2.6 光响应度测试步骤 10
3 结果与讨论 12
3.1 UV紫外吸收图谱 12
3.2 PL光致发光图谱 13
3.3 氧化锆的SEM图像 15
3.4 XRD图谱分析 16
3.5 光响应度曲线 17
3.6 展望 18
结 论 19
致 谢 20