Femtosecond laser surface structuring of molybdenum thin films

被引：26

作者：

Kotsedi, L. ^{[1
,2
,5
]}

Mthunzi, P. ^{[3
,5
]}

Nuru, Z. Y. ^{[1
,2
]}

Eaton, S. M. ^{[4
,5
]}

Sechoghela, P. ^{[1
,2
]}

Mongwaketsi, N. ^{[1
,2
]}

Ramponi, R. ^{[6
]}

Maaza, M. ^{[1
,2
]}

机构：

[1] Univ South Africa, UNESCO UNISA Africa Chair Nanosci Nanotechnol, Coll Grad Studies, Pretoria, South Africa

[2] iThemba LABS Natl Res Fdn, Nanosci African Network NANOAFNET, Somerset, Western Cape Pr, South Africa

[3] CSIR, Biophoton Lab, Natl Laser Ctr Pretoria, ZA-0001 Pretoria, South Africa

[4] Politecn Milan, Phys Dept, I-20133 Milan, Italy

[5] Ist Italiano Tecnol, Ctr Nano Sci & Technol, I-20133 Milan, Italy

[6] Inst Photont & Nanotechnol IFN CNR, I-20133 Milan, Italy

来源：

APPLIED SURFACE SCIENCE | 2015年 / 353卷

基金：

新加坡国家研究基金会;

关键词：

Surface laser structuring; Femtosecond; Molybdenum; Molybdenum oxide; Electronic valence; RAMAN-SPECTRA; ABLATION; XPS; ABSORPTION; GRATINGS; COATINGS; VANADIUM; GROWTH; OXIDES; LIGHT;

D O I：

10.1016/j.apsusc.2015.08.047

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This contribution reports on the femtosecond surface structuring of molybdenum thin coatings deposited by electron beam evaporation onto Corning glass substrates. The 1-D type periodic grating lines created by such an ablation showed that the widths of the shallow grooves followed a logarithmic dependence with the laser energy incident on the molybdenum film. The electronic valence "x" of the created oxide surface layer MoOx was found to be incident laser power dependent via Rutherford backscattering spectrometry, X-ray photoelectron spectroscopy and X-ray diffraction investigations. Such a photo-induced MoOx-Mo nanocomposite exhibited effective selective solar absorption in the UV-vis-IR spectral range. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：1334 / 1341

页数：8

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