Pulsed Nd:YAG deposition of nanostructured FeS1-x containing meta-stable phases

Pulsed near-IR laser irradiation of ferrous sulfide (FeS) in a vacuum allows a non-congruent ablation and deposition of nanostructured FeS1-x thin films. Deposition has been performed on Al, Ta and Cu unheated substrate and analyzed by scanning (SEM) and high resolution transmission electron microsc...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 175; no. 1
Main Authors K enek, T, Karatodorov, S, Medlín, R, Mihailov, V, Savková, J
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2017
Subjects
Ablation
Aluminum
Copper
Deposition
Electron diffraction
Electrons
High resolution electron microscopy
Iron sulfides
Microscopes
Nanostructure
Phase composition
Pyrite
Substrates
Thin films
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Summary:Pulsed near-IR laser irradiation of ferrous sulfide (FeS) in a vacuum allows a non-congruent ablation and deposition of nanostructured FeS1-x thin films. Deposition has been performed on Al, Ta and Cu unheated substrate and analyzed by scanning (SEM) and high resolution transmission electron microscopy (HRTEM) and electron diffraction. Morphologically, the similar homogeneous, dark, metallic and adhesive appearanceshave been revealed for all the coats deposited on various substrates (by SEM). However, using HRTEM in agreement with electron diffraction, different phase composition on various substrates has been detected. Cubic pyrite phase (FeS2) has been detected on Ta substrate. Cubic pyrite (FeS2) and metastable rhomboedric smythite Fe9S11 have been found in case of Al substrate. Cubic pyrite (FeS2), metastable rhomboedric smythite Fe9S11 and metastable orthorhombic marcasite (FeS2m) revealed HRTEM analysis of the film on Cu substrate. In case of all deposits the detected crystalline nanograins were surrounded by amorphous matrix.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/175/1/012022