Phase Formation and Phase Stability in the Al-Ti Thin Film System

1990 ◽  
Vol 213 ◽  
Author(s):  
L.R. Parks ◽  
D.A. Lilienfeld ◽  
P. BØRgesen ◽  
R. Raj

ABSTRACTThis study focuses on the sequential formation of aluminide phases during annealing of titanium and aluminum thin film bilayers. The formation of titanium-rich intermetallic phases at higher annealing temperatures is emphasized. Using Rutherford Backscattering Spectrometry (RBS) analysis, and x-ray diffraction, phases formed as a function of temperature have been identified. The phases Al3Ti through Ti3Al were observed over the temperature range 450–750°C, where reaction with the SiO2 substrate occurred. All phases were present as discreet layers within the samples with several layered phases coexisting at the higher temperatures.

1988 ◽  
Vol 119 ◽  
Author(s):  
Hung-Yu Liu ◽  
Peng-Heng Chang ◽  
Jim Bohlman ◽  
Hun-Lian Tsai

AbstractThe interaction of Al and W in the Si/SiO2/W-Ti/Al thin film system is studied quantitatively by glancing angle x-ray diffraction. The formation of Al-W compounds due to annealing is monitored by the variation of the integrated intensity from a few x-ray diffraction peaks of the corresponding compounds. The annealing was conducted at 400°C, 450°C and 500°C from 1 hour to 300 hours. The kinetics of compound formation is determined using x-ray diffraction data and verified by TEM observations. We will also show the correlation of the compound formation to the change of the electrical properties of these films.


2007 ◽  
Vol 253 (8) ◽  
pp. 3799-3802 ◽  
Author(s):  
S. Abhaya ◽  
G. Amarendra ◽  
S. Kalavathi ◽  
Padma Gopalan ◽  
M. Kamruddin ◽  
...  

2013 ◽  
Vol 344 ◽  
pp. 79-84
Author(s):  
S.I. Sidorenko ◽  
S.M. Voloshko ◽  
Yu.M. Мakogon ◽  
O.P. Pavlov ◽  
I.E. Kotenko ◽  
...  

By the methods of Auger-spectroscopy and mass-spectrometry of secondary ions, small-angle electron diffraction, X-ray and resistometry analyses the solid-state reactions in the Ti(5 nm)/ Ni(24 nm)/Si(001) thin film system at annealing in running nitrogen in the temperature interval of 723 – 1273 К are investigated. Regularities of phase transformations, consistency of solid-state reactions, layer-by-layer redistribution of components during annealing, features of surface morphology during formation of inclusions of silicide phases are established.


2000 ◽  
Vol 648 ◽  
Author(s):  
Chichang Zhang ◽  
Aris Christou

AbstractShape memory alloy TiNi thin films on GaAs have been investigated. A series of TiNi compositions were electron beam deposited on GaAs initially as thin multilayers of Ti and Ni. The intermetallic phase of TiNi was formed by annealing and complete intermixing of the multilayers at 370oC. The intermetallic phases were investigated with X-ray diffraction techniques. The annealing kinetics and resistivity investigations were carried out in order to minimize the sheet resistance of the intermetallic phase. TiNi Schottky barriers on GaAs have been fabricated and their performance will be reported. Additional investigations on surface morphology using the energy dispersive spectroscopy as well as TEM investigations show the correlation between microstructure, intermetallic phase formation and sheet resistance.


2010 ◽  
Vol 150-151 ◽  
pp. 530-533 ◽  
Author(s):  
Lin Lu ◽  
Yan Jie Wang ◽  
Xiao Gang Li

CuInS2 thin film used for photovoltaic applications was prepared by one-step electrodeposition. The films were annealed at different temperatures of 350, 400, 500 °C. Effects of annealing temperatures on the properties of the film were investigated by the way of X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-Vis-NIR Spectroscopy. The result shows that CuInS2 film with chalcopyrite structure can be successfully prepared by one-step electrodeposition. Annealing is effective in improving the crystallinity of the thin film. The temperature of 400°C is favorable to the grain growth of the film without the generation of impurity.


2005 ◽  
Vol 86 (13) ◽  
pp. 131922 ◽  
Author(s):  
T. Joelsson ◽  
L. Hultman ◽  
H. W. Hugosson ◽  
J. M. Molina-Aldareguia

2007 ◽  
Vol 264 ◽  
pp. 155-158
Author(s):  
Yu.N. Makogon ◽  
O.P. Pavlova ◽  
G. Beddies ◽  
A.V. Mogilatenko ◽  
O.V. Chukhrai

Annealing environment effect on the phase formation in Ni(10 nm)/C(2 nm)/Si(001) thin film system produced by sequential sputtering of C and Ni targets without vacuum breaking was under investigation. The specimens were annealed 30 s in vacuum of 1.3·10-4 Pa and in nitrogen flow in the temperature range of 450 - 1000°C. The temperature stimulated solid-state reactions that occur as the result of interdiffusion processes between layers of the thin film system under investigations were examined by X-ray - and electron diffractions, resistivity measurements and Rutherford backscattering. It was established that an annealing environment has a strong impact on the development of the solid-state reactions in Ni(10 nm)/C(2 nm)/Si(001) thin film system.


2011 ◽  
Vol 181-182 ◽  
pp. 409-412 ◽  
Author(s):  
Yu Cang Wang ◽  
Rui Min Jin

Undoped amorphous silicon film deposited by PECVD,and annealed by rapid tharmal process,then have been studied by using micro-Raman scattering, X-ray diffraction and scanning electron microscope.It is found that crystallized silicon films is different at different annealing temperatures, there exists a better annealing temperature.


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