ZnO基半导体异质结构纳米材料的可控合成及光学性能研究

发布时间：2018-05-02 00:58

本文选题：ZnO半导体材料 + 异质结构　；参考：《科技通报》2017年03期

【摘要】：为了能细致的研究ZnO基半导体异质结构纳米材料的实用价值,采用实验方式制作功效不同的ZnO异质结构纳米材料,并对该材料的可控合成过程及光电学性能进行研究。首先,采用化学溶液法制备尺寸可控的ZnO纳米球团聚体,以间接法提取高纯度ZnO粉体作为制作复合颜料的基体;其次,在ZnO粉体中加入适量的纳米SiO_2颗粒,构成二者混合粉体,高温下用纳米SiO_2颗粒对混合粉体进行良好包裹并充分发生固相反应;最后形成ZnO基异质结构纳米材料Zn_2SiO_4,并对该异质结构材料的可控合成过程进行分析。实验结果表明,不同热处理温度下ZnO基半导体异质结构纳米材料对太阳辐射吸收率不同,且当Zn_2SiO_4含量增加的时,该纳米材料对应的光学性能随着发生明显的改变。
[Abstract]:In order to study the practical value of ZnO based semiconductor heterostructure nanomaterials, ZnO heterostructure nanomaterials with different efficacy were fabricated by experiment, and the controllable synthesis process and optoelectronic properties of the materials were studied. Firstly, the ZnO nano-pellets with controllable size were prepared by chemical solution method, and the high purity ZnO powder was extracted by indirect method as the matrix of the composite pigment. Secondly, the appropriate amount of nano-SiO_2 particles were added to the ZnO powder to form the mixed powder. SiO_2 nanoparticles were used to encapsulate the mixed powders at high temperature and the solid state reaction took place. Finally, Zn2SiO _ 4 nanomaterials based on ZnO were formed, and the controllable synthesis process of the heterostructure materials was analyzed. The experimental results show that the solar radiation absorptivity of ZnO based semiconductor heterostructure nanomaterials is different at different heat treatment temperatures, and the optical properties of ZnO based semiconductor heterostructure nanocrystals vary with the increase of Zn_2SiO_4 content.
【作者单位】：商丘工学院基础教学部;
【分类号】：TQ132.41;TB383.1

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