scholarly journals Stearic Acid/Layered Double Hydroxides Composite Thin Films Deposited by Combined Laser Techniques

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4097
Author(s):  
Ruxandra Birjega ◽  
Andreea Matei ◽  
Valentina Marascu ◽  
Angela Vlad ◽  
Maria Daniela Ionita ◽  
...  
Keyword(s):  
Stearic Acid ◽  
Composite Films ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Laser Evaporation ◽  
Time Stability ◽  
Deposition Parameters ◽  
Component Material ◽  
Double Hydroxide ◽  
Double Hydroxides

We report on the investigation of stearic acid-layered double hydroxide (LDH) composite films, with controlled wettability capabilities, deposited by a combined pulsed laser deposition (PLD)-matrix-assisted pulsed laser evaporation (MAPLE) system. Two pulsed lasers working in IR or UV were used for experiments, allowing the use of proper deposition parameters (wavelength, laser fluence, repetition rate) for each organic and inorganic component material. We have studied the time stability and wettability properties of the films and we have seen that the morphology of the surface has a low effect on the wettability of the surfaces. The obtained composite films consist in stearic acid aggregates in LDH structure, exhibiting a shift to hydrophobicity after 36 months of storage.

Processing by Pulsed Laser Deposition and Structural, Morphological and Chemical Characterization of Bi-Pb-Sr-Ca-Cu-O and Bi-Pb-Sb-Sr-Ca-Cu-O Thin Films

2010 ◽  
Vol 75 ◽  
pp. 202-207
Author(s):  
Victor Ríos ◽  
Elvia Díaz-Valdés ◽  
Jorge Ricardo Aguilar ◽  
T.G. Kryshtab ◽  
Ciro Falcony
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Room Temperature ◽  
Pulsed Laser ◽  
Chemical Characterization ◽  
Laser Deposition ◽  
Nominal Composition ◽  
Deposition Parameters ◽  
The Relationship

Bi-Pb-Sr-Ca-Cu-O (BPSCCO) and Bi-Pb-Sb-Sr-Ca-Cu-O (BPSSCCO) thin films were grown on MgO single crystal substrates by pulsed laser deposition. The deposition was carried out at room temperature during 90 minutes. A Nd:YAG excimer laser ( = 355 nm) with a 2 J/pulse energy density operated at 30 Hz was used. The distance between the target and substrate was kept constant at 4,5 cm. Nominal composition of the targets was Bi1,6Pb0,4Sr2Ca2Cu3O and Bi1,6Pb0,4Sb0,1Sr2Ca2Cu3OSuperconducting targets were prepared following a state solid reaction. As-grown films were annealed at different conditions. As-grown and annealed films were characterized by XRD, FTIR, and SEM. The films were prepared applying an experimental design. The relationship among deposition parameters and their effect on the formation of superconducting Bi-system crystalline phases was studied.

Effect of pulsed-laser deposition parameters on plasma expansion studied by fast-framing photography

1998 ◽  
Author(s):  
Dana Miu ◽  
Aurelian Marcu ◽  
T. Yukawa ◽  
Constantin Grigoriu ◽  
Ioan Chis ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Plasma Expansion ◽  
Deposition Parameters

Luminescent Characteristics of Pulsed Laser Deposited Epitaxial Eu-Doped Y2O3 Films

1999 ◽  
Vol 574 ◽  
Author(s):  
D. Kumar ◽  
K. G. Cho ◽  
Zhang Chen ◽  
V. Craciun ◽  
P. H. Holloway ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Epitaxial Growth ◽  
Yttrium Oxide ◽  
Lattice Mismatch ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Deposition Technique ◽  
Deposition Parameters

AbstractThe growth, structural and cathodoluminescent (CL) properties of europium activated yttrium oxide (Eu:Y2O3) thin films are reported. The Eu:Y2O3 films were grown in-situ using a pulsed laser deposition technique. Our results show that Eu:Y2O3 films can grow epitaxially on (100) LaAlO3 substrates under optimized deposition parameters. The epitaxial growth of Eu:Y2O3 films on LaAlO3, which has a lattice mismatch of ∼ 60 %, is explained by matching of the atom positions in the lattices of the film and the substrate after a rotation. CL data from these films are consistent with highly crystalline Eu:Y2O3 films with an intense CL emission at 611 nm.

A study on in vitro and in vivo bioactivity of HA/45S5 composite films by pulsed laser deposition

2013 ◽  
Vol 270 ◽  
pp. 667-674 ◽  
Author(s):  
D.G. Wang ◽  
C.Z. Chen ◽  
Q.S. Ma ◽  
Q.P. Jin ◽  
H.C. Li
Keyword(s):  
Pulsed Laser Deposition ◽  
Composite Films ◽  
Pulsed Laser ◽  
Laser Deposition

Optical Properties of Co-BaTiO 3 /Mg(100) Nano-Composite Films Grown by Pulsed Laser Deposition Method

2008 ◽  
Vol 25 (4) ◽  
pp. 1465-1468 ◽  
Author(s):  
Wu Wei-Dong ◽  
Wang Feng ◽  
Ge Fang-Fang ◽  
Bai Li ◽  
Lei Hai-Le ◽  
...  
Keyword(s):  
Optical Properties ◽  
Pulsed Laser Deposition ◽  
Composite Films ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Deposition Method ◽  
Nano Composite

Pulsed Laser Deposition of Bi4Ti3O12 Thin Films on Sapphire Substrates

1994 ◽  
Vol 361 ◽  
Author(s):  
William Jo ◽  
T.W. Noh
Keyword(s):  
Thin Films ◽  
Substrate Temperature ◽  
Pulsed Laser Deposition ◽  
Film Growth ◽  
Narrow Range ◽  
Pulsed Laser ◽  
Growth Behavior ◽  
Laser Deposition ◽  
Sapphire Substrates ◽  
Deposition Parameters

ABSTRACTUsing pulsed laser deposition, Bi4Ti3O12 thin films were grown on (0001) and (1102) surfaces of Al2O3. Substrate temperature from 700 to 800 °C and oxygen pressure from 50 to 1000 mtorr were varied, and their effects on Bi4Ti3O12 film growth behavior was investigated. Only for a narrow range of deposition parameters, can highly oriented Bi4Ti3O12(104) films be grown on Al2O3(0001). Further, epitaxial BTO(004) films can be grown on Al2O3(1102). The growth behavior of preferential BTO film orientations can be explained in terms of atomic arrangements in the Bi4Ti3O12 and the Al2O3 planes.

Sign in / Sign up

Export Citation Format

Share Document