水热法制备的ZnO纳米线的微结构、光学性质以及光学模型(英文)
发布时间:2022-07-19 11:40
在90°C的温度环境下,采用水热化学沉积法制备Zn O纳米线薄膜,然后用扫描电子显微镜、透射光谱和X射线衍射等技术对所制备的纳米薄膜进行表征。结果表明,制备的纳米Zn O薄膜的光学带隙在3.274到3.347 e V之间。调节p H值可以控制膜的孔隙率和显微结构。SEM照片清楚地显示两层结构,且这两层的空隙率不同。XRD结果显示(002)取向的优先生长。针对纳米结构的Zn O薄膜建立一个完整的光学模型,包括Bruggeman有效介质近似、粗糙表面的光散射和O’Leary-Johnson-Lim带间吸收模型。利用此光学模型,拟合实验测量的纳米结构Zn O薄膜的透射光谱,拟合结果同实验结果具有很高的一致性。
【文章页数】:9 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Nanowire preparation
2.2 Characterisation methods
3 Results and discussion
3.1 Nanowire characterisation
3.2 Proposed theoretical optical model
3.2.1 Bruggeman effective medium approximation
3.2.2 Rough surface light scattering
3.2.3 O'Leary-Johnson-Lim(OJL)model
3.3 Optical data fitting
4 Conclusions
【参考文献】:
期刊论文
[1]基于新型形貌的纳米结构氧化锌高性能室温气体传感器(英文)[J]. Naila ZUBAIR,Khalida AKHTAR. Transactions of Nonferrous Metals Society of China. 2019(01)
[2]Zinc Oxide Nanostructures for NO2 Gas–Sensor Applications:A Review[J]. Rajesh Kumar,O.Al-Dossary,Girish Kumar,Ahmad Umar. Nano-Micro Letters. 2015(02)
本文编号:3663350
【文章页数】:9 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Nanowire preparation
2.2 Characterisation methods
3 Results and discussion
3.1 Nanowire characterisation
3.2 Proposed theoretical optical model
3.2.1 Bruggeman effective medium approximation
3.2.2 Rough surface light scattering
3.2.3 O'Leary-Johnson-Lim(OJL)model
3.3 Optical data fitting
4 Conclusions
【参考文献】:
期刊论文
[1]基于新型形貌的纳米结构氧化锌高性能室温气体传感器(英文)[J]. Naila ZUBAIR,Khalida AKHTAR. Transactions of Nonferrous Metals Society of China. 2019(01)
[2]Zinc Oxide Nanostructures for NO2 Gas–Sensor Applications:A Review[J]. Rajesh Kumar,O.Al-Dossary,Girish Kumar,Ahmad Umar. Nano-Micro Letters. 2015(02)
本文编号:3663350
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