Co3O4/Fe2O3异质结复合材料的制备及其紫外光光电探测性能
Preparation and UV Photodetection Properties of a Co3O4/Fe2O3 Heterojunction Composite
李丽华 1彭韶龙 1从文博 1王航 1汪钰馨 1黄金亮1
作者信息
- 1. 河南科技大学材料科学与工程学院,河南洛阳 471000
- 折叠
摘要
分别采用旋涂法和水热法在FTO衬底上制备Co3O4种子层和Co3O4薄膜,再在Co3O4薄膜上水热生长Fe2O3纳米棒,获得了高质量的Co3O4/Fe2O3异质结复合材料.通过改变Fe2O3前驱体溶液浓度来改变异质结复合材料中Fe2O3组分的含量.结果表明,Fe2O3纳米棒覆盖在呈网状结构的Co3O4薄膜上,随着Fe2O3前驱体溶液浓度即Fe2O3组分含量的增加,Co3O4/Fe2O3异质结复合材料对紫外光的响应逐渐增强,当Fe2O3前驱体溶液浓度为0.015 mol/L时,异质结复合材料有着很好的光电稳定性,并表现出较高的响应率(12.5 mA/W)和探测率(4.4× 1010Jones).
Abstract
In this study,we prepare a Co3O4 seed layer and thin film on an FTO substrate using spin-coating and hydrothermal methods,respectively.We then hydrothermally grow Fe2O3 nanorods on the Co3 O4 thin film to obtain high-quality Co3O4/Fe2O3 heterojunction composite materials.By changing the concentration of the Fe2O3 precursor solution,we can alter the contents of the Fe2O3 components in the heterojunction composite materials.Results indicated that Fe2O3 nanorods covered the Co3O4 thin film with a network structure.With an increase in the Fe2O3 precursor solution concentration,the response of the Co3O4/Fe2O3 heterojunction composite material to ultraviolet light gradually increased.When the concentration of the Fe2O3 precursor solution was 0.015 mol/L,the heterojunction composite material exhibited good photoelectric stability,a high response rate(12.5 mA/W),and a high detection rate(4.4×1010 Jones).
关键词
Co3O4/紫外光电探测/Co3O4/Fe2O3复合材料/异质结Key words
Co3O4/UV photodetection/Co3O4/Fe2O3 composite/heterojunction引用本文复制引用
出版年
2024
NETL
NSTL
万方数据