TOF SIMS induced artificial topographical effects on the Y2(Al,Ga)5O12:Tb3+ thin films deposited on Si substrates by the pulsed laser deposition technique

2014 ◽  
Vol 313 ◽  
pp. 524-531 ◽  
Author(s):  
A. Yousif ◽  
R.M. Jafer ◽  
J.J. Terblans ◽  
O.M. Ntwaeaborwa ◽  
M.M. Duvenhage ◽  
...  
2013 ◽  
Vol 833 ◽  
pp. 37-40
Author(s):  
Fang Tian ◽  
X.A. Mei ◽  
M. Chen ◽  
C.Q. Huang

Sc-doped bismuth titanate (Bi4-xScxTi3O12: BST) and pure Bi4Ti3O12 (BIT) thin films with random orientation were fabricated on Pt/Ti/SiO2/Si substrates by pulsed laser deposition technique. These samples had polycrystalline Bi-layered perovskite structure without preferred orientation, and consisted of well developed rod-like grains with random orientation. The experimental results indicated that Sc doping into BIT result in a remarkable improvement in ferroelectric properties. The Pr and the Ec values of the BST film with x=0.75 were 25 μC/cm2 and 65 kV/cm, respectively.


2010 ◽  
Vol 197 (1-3) ◽  
pp. 129-134 ◽  
Author(s):  
J. J. Dolo ◽  
H. C. Swart ◽  
E. Coetsee ◽  
J. J. Terblans ◽  
O. M. Ntwaeaborwa ◽  
...  

2014 ◽  
Vol 633 ◽  
pp. 378-381
Author(s):  
Bei Li ◽  
X.B. Liu ◽  
M. Chen ◽  
X.A. Mei

Dy-doped Bi4Ti3O12 thin films were fabricated on Pt/Ti/SiO2/Si substrates by pulsed laser deposition technique, and the structures and electrical properties of the films were investigated. XRD results indicated that all of Bi4-xDyxTi3O12 films consisted of single phase of a bismuth-layered structure with well-developed rod-like grains. The remanent polarization ( Pr ) and coercive field (Ec) of the Bi4-xDyxTi3O12 Film with x=0.75 were 25μC/cm2 and 85KV/cm , respectively.


1999 ◽  
Vol 574 ◽  
Author(s):  
D. Kumar ◽  
K. G. Cho ◽  
Zhang Chen ◽  
V. Craciun ◽  
P. H. Holloway ◽  
...  

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.


2010 ◽  
Vol 123-125 ◽  
pp. 375-378 ◽  
Author(s):  
Ram Prakash ◽  
Shalendra Kumar ◽  
Chan Gyu Lee ◽  
S.K. Sharma ◽  
Marcelo Knobel ◽  
...  

Ce1-xFexO2 (x=0, 0.01, 0.03 and 0.0 5) thin films were grown by pulsed laser deposition technique on Si and LaAlO3 (LAO) substrates. These films were deposited in vacuum and 200 mTorr oxygen partial pressure for both the substrates. These films were characterized by x-ray diffraction XRD and Raman spectroscopy measurements. XRD results reveal that these films are single phase. Raman results show F2g mode at ~466 cm-1 and defect peak at 489 cm-1 for film that deposited on LAO substrates, full width at half maximum (FWHM) is increasing with Fe doping for films deposited on both the substrates.


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