Crystallization of Molybdenum Disulfide Films Deposited by Pulsed Laser Ablation

1990 ◽  
Vol 201 ◽  
Author(s):  
J. S. Zabinski ◽  
M. S. Donley ◽  
P. J. John ◽  
V. J. Dyhouse ◽  
A. J. Safriet ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Raman Spectroscopy ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Emerging Technology ◽  
Substrate Material ◽  
Post Deposition Annealing ◽  
Film Properties ◽  
Deposition Parameters ◽  
Post Deposition

AbstractPulsed laser ablation (PLA) is an emerging technology that provides a mechanism to deposit lubricious films and to tailor film properties by the appropriate choice of substrate materials, deposition parameters and post deposition treatments. The properties of MoS2 films deposited by PLA are evaluated as a function of: (1) substrate material, (2) duration of post deposition annealing treatments using 248 nm laser radiation and (3) substrate temperature during deposition. The chemistry and crystal structure of the different films are determined using small angle X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and Rutherford backscattering spectroscopy (RBS). The tribological properties of the films are then evaluated as a function of their chemistry and crystal structure.

Observations on the growth of YBa2Cu3O7-δ thin films on MgO by pulsed-laser ablation

1991 ◽  
Vol 49 ◽  
pp. 1068-1069
Author(s):  
M. Grant Norton ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Laser Ablation ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Laser Ablation Process ◽  
Deposition Parameters

Pulsed-laser ablation has been widely used to produce high-quality thin films of YBa2Cu3O7-δ on a range of substrate materials. The nonequilibrium nature of the process allows congruent deposition of oxides with complex stoichiometrics. In the high power density regime produced by the UV excimer lasers the ablated species includes a mixture of neutral atoms, molecules and ions. All these species play an important role in thin-film deposition. However, changes in the deposition parameters have been shown to affect the microstructure of thin YBa2Cu3O7-δ films. The formation of metastable configurations is possible because at the low substrate temperatures used, only shortrange rearrangement on the substrate surface can occur. The parameters associated directly with the laser ablation process, those determining the nature of the process, e g. thermal or nonthermal volatilization, have been classified as ‘primary parameters'. Other parameters may also affect the microstructure of the thin film. In this paper, the effects of these ‘secondary parameters' on the microstructure of YBa2Cu3O7-δ films will be discussed. Examples of 'secondary parameters' include the substrate temperature and the oxygen partial pressure during deposition.

scholarly journals Correlations between morphology, crystal structure, and magnetization of epitaxial cobalt-platinum films grown with pulsed laser ablation

2008 ◽  
Vol 103 (2) ◽  
pp. 023915 ◽  
Author(s):  
R. K. Rakshit ◽  
S. K. Bose ◽  
R. Sharma ◽  
R. C. Budhani ◽  
T. Vijaykumar ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation

Control of crystal structure, morphology and optical properties of ceria films by post deposition annealing treatments

2016 ◽  
Vol 603 ◽  
pp. 363-370 ◽  
Author(s):  
Asmaa Eltayeb ◽  
Rajani K. Vijayaraghavan ◽  
Anthony P. McCoy ◽  
Joseph Cullen ◽  
Stephen Daniels ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Post Deposition Annealing ◽  
Structure Morphology ◽  
Post Deposition

Effect of deposition pressure and post deposition annealing on SmCo thin film properties

2008 ◽  
Vol 5 (12) ◽  
pp. 3759-3762 ◽  
Author(s):  
Th. Speliotis ◽  
E. Makarona ◽  
F. Chouliaras ◽  
C. A. Charitidis ◽  
C. Tsamis ◽  
...  
Keyword(s):  
Thin Film ◽  
Deposition Pressure ◽  
Post Deposition Annealing ◽  
Film Properties ◽  
Post Deposition

Crack Development in Pulsed Laser-Deposited Pzt Thin Films

1992 ◽  
Vol 285 ◽  
Author(s):  
H. M. Lee ◽  
T. J. Chuang ◽  
C. K. Chiang ◽  
L. P. Cook ◽  
P. K. Schenck
Keyword(s):  
Film Thickness ◽  
Thermal Gradient ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Post Deposition Annealing ◽  
Pzt Thin Films ◽  
Pzt Thin Film ◽  
Parabolic Function ◽  
Induced Stresses ◽  
Post Deposition

ABSTRACTThe development of cracks in a PZT thin film prepared by pulsed laser deposition on an unheated Pt-coated silicon substrate, and subsequently crystallized by post-deposition annealing, was investigated as a function of film thickness. As deposited, the film was amorphous. The film was heated at 600°C to produce predominantly ferroelectric crystalline PZT. Spacing, width and morphology of cracks in the film followed a regular progression in which crack area decreased with decreasing film thickness. Data on area shrinkage, as deduced from crack area, were fit equally well as either a linear or a parabolic function of film thickness. It is suggested that crystallization-induced stresses rather than thermal-gradient related stresses, were dominant in the formation of the cracks, and that these stresses were modified by interaction with the substrate.

DEPOSITION OF (Ba, La)CuO2/CaCuO2 SUPERCONDUCTING MULTILAYERS BY PULSED LASER ABLATION

2000 ◽  
Vol 14 (25n27) ◽  
pp. 2713-2718 ◽  
Author(s):  
V. BRACCINI ◽  
D. MARRE' ◽  
A. MOLLICA ◽  
G. GRASSANO ◽  
A. S. SIRI
Keyword(s):  
Laser Ablation ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Deposition ◽  
High Oxygen Partial Pressure ◽  
Infinite Layer ◽  
Deposition Parameters ◽  
Semiconducting Behavior

Superconducting multilayers, whose growth and structure are determined by the kinetic deposition instead by thermodynamics, are a powerful tool for investigating high T c superconductors (HTSC) properties. By means of Pulsed Laser Deposition (PLD), we grew such materials alternating infinite layer phases both pure and doped, to supply CuO 2 planes and charge reservoir (CR) blocks respectively. We found out that using chemically doped CR leads to a semiconducting behavior, whereas oxygen doping seems to be much more effective, since the BaCuO 2 infinite phase, grown in high oxygen partial pressure, does actually bring about a superconducting behavior. We deposited BaCuO 2/ CaCuO 2 superlattices with various periodicities and studied their transport and structural properties. By varying the deposition parameters, we reached both kinetic and thermodynamic growth and we observed semiconducting and superconducting behaviors.

Modification of pulsed laser deposited yttrium iron garnet thin films by post-deposition annealing procedures

2003 ◽  
Author(s):  
Mihaela E. Koleva ◽  
Rumen I. Tomov ◽  
Peter A. Atanasov ◽  
Orlin I. Vankov ◽  
Naiden I. Mihailov
Keyword(s):  
Thin Films ◽  
Yttrium Iron Garnet ◽  
Pulsed Laser ◽  
Post Deposition Annealing ◽  
Yttrium Iron ◽  
Iron Garnet ◽  
Post Deposition
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