Structural and optical properties of molybdenum oxide thin films prepared by the dip coating technique

IF 0.9 4区物理与天体物理 Q4 PHYSICS, APPLIED

European Physical Journal-applied Physics Pub Date : 2021-03-01 DOI:10.1051/EPJAP/2021200366

D. Ahmad, M. A. Khan, A. Mahmood, A. Sohail, S. Gillani

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引用次数: 3

Abstract

Due to their excellent structural and optical properties of molybdenum oxide thin films are used in various applications such as gas-sensing, solar cells, optoelectronic and medical physics. The present study is related to the synthesis of molybdenum oxide thin films prepared by dip coating technique and the films were characterized by using various techniques such as XRD, SEM and UV-visible spectroscopy. The monoclinic crystal structure and the crystallite size (29.16–52.77 nm) was investigated by X rays diffraction (XRD) analysis. SEM micrograph was used to identify the nano tubes in MoO3 thin film and UV-visible spectroscopy exhibits the maximum absorption in ultra-violet region and band gap decrease (3.17–2.71 eV) with increased the inner transition states in molybdenum thin film. Finally, the results show that the series of molybdenum oxides MoO1 (Sample 1), MoO2 (Sample 2) and MoO3 (sample 3) exhibited interesting structural and optical properties which make them good candidates for photo catalytic activity.

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浸涂技术制备的氧化钼薄膜的结构和光学性能

由于其优异的结构和光学性能，氧化钼薄膜被广泛应用于气体传感、太阳能电池、光电和医学物理等领域。采用浸涂法制备了氧化钼薄膜，并采用XRD、SEM、uv -可见光谱等多种技术对其进行了表征。采用X射线衍射(XRD)对其单斜晶结构和晶粒尺寸(29.16 ~ 52.77 nm)进行了表征。利用SEM显微照片对MoO3薄膜中的纳米管进行了鉴定，紫外可见光谱显示，随着钼薄膜内过渡态的增加，MoO3薄膜在紫外区吸收最大，带隙减小(3.17-2.71 eV)。最后，结果表明，MoO1(样品1)、MoO2(样品2)和MoO3(样品3)系列钼氧化物具有良好的结构和光学性质，是光催化活性的良好候选者。

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来源期刊

European Physical Journal-applied Physics 物理-物理：应用

CiteScore

1.90

自引率

10.00%

发文量

审稿时长

1.9 months

期刊介绍： EPJ AP an international journal devoted to the promotion of the recent progresses in all fields of applied physics. The articles published in EPJ AP span the whole spectrum of applied physics research.