纳米孔
材料科学
原子层沉积
图层(电子)
涂层
介电谱
阳极氧化
化学工程
电化学
椭圆偏振法
电解质
薄膜
纳米技术
多孔性
沉积(地质)
逐层
光致发光
复合材料
光电子学
铝
电极
化学
古生物学
物理化学
沉积物
工程类
生物
作者
Ana Cuevas,Antonia A. Dominguez,Javier Zamudio‐García,V. Vega,Ana Silvia González,D. Marrero-López,Víctor Manuel de la Prida Pidal,J. Benavente
出处
期刊:Materials
[MDPI AG]
日期:2024-03-20
卷期号:17 (6): 1412-1412
被引量:1
摘要
This study explores the optical and electrochemical properties of a ZnO coating layer deposited on a nanoporous alumina structure (NPAS) for potential multifunctional applications. The NPAS, synthesized through an electrochemical anodization process, displays well-defined nanochannels with a high aspect ratio (~3000). The ZnO coating, achieved via atomic layer deposition, enables the tuning of the pore diameter and porosity of the NPAS, thereby influencing both the optical and electrochemical interfacial properties. A comprehensive characterization using photoluminescence, spectroscopy ellipsometry and impedance spectroscopy (with the sample in contact with NaCl solutions) provides insights into optical and electrochemical parameters, including the refractive index, absorption coefficient, and electrolyte-ZnO/NPAS interface processes. This research demonstrates potential for tailoring the optical and interfacial properties of nanoporous structures by selecting appropriate coating materials, thus opening avenues for their utilization in various technological applications.
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