Dielectric Characterization of Thin Films Consisting of Tin Doped Indium Oxide Nanoparticles

1999 ◽  
Vol 581 ◽  
Author(s):  
A. Hultåker ◽  
G. A. Niklasson

ABSTRACTIn recent years there has been a growing interest in cheap and easy production techniques for transparent conducting thin films. One way of making these uses a nanoparticle dispersion. We prepared thin films of tin doped indium oxide by spin-coating of a solution of nanoparticles. The sintering behavior of these ceramic particles was studied by dielectric spectroscopy and by grazing incidence X-ray diffraction. The grain growth was found to start at 1000°C and to be prominent at 1250°C. However, the electrical conductivity reached a maximum below these temperatures.

2010 ◽  
Vol 519 (3) ◽  
pp. 1082-1086 ◽  
Author(s):  
Vipin Kumar Jain ◽  
Praveen Kumar ◽  
Deepika Bhandari ◽  
Y.K. Vijay

1991 ◽  
Vol 35 (A) ◽  
pp. 151-157
Author(s):  
G. Will ◽  
T. C. Huang ◽  
F. Sequeda

The structural characterization of thin films is important for research development and manufacturing of electronic, magnetic, optical, and other high-tech materials. The grazing incidence X-ray diffraction technique has bean used successfully for the determination of crystalline phases, structural-depth profiles, crystallite size, and strain, etc. of thin films with thickness's down to a few tens of Å, If the crystal structure, e.g. the distribution of atoms in the unit cell, or the crystallinity and texture (or preferred orientation) of a film is of interest, the conventional Bragg-Brentano diffractometer technique with the θ-2θ scanning geometry has been found to be appropriate.


2011 ◽  
Vol 64 (8) ◽  
pp. 1065 ◽  
Author(s):  
Vivek M. Prabhu ◽  
Shuhui Kang ◽  
R. Joseph Kline ◽  
Dean M. DeLongchamp ◽  
Daniel A. Fischer ◽  
...  

The ccc stereoisomer-purified tert-butoxycarbonyloxy-protected calix[4]resorcinarene molecular resists blended with photoacid generator exhibit a non-uniform photoacid-catalyzed reaction in thin films. The surface displays a reduced reaction extent, compared with the bulk, with average surface-layer thickness 7.0 ± 1.8 nm determined by neutron reflectivity with deuterium-labelled tert-butoxycarbonyloxy groups. Ambient impurities (amines and organic bases) are known to quench surface reactions and contribute, but grazing-incidence X-ray diffraction shows an additional effect that the protected molecular resists are preferentially oriented at the surface, whereas the bulk of the film displays diffuse scattering representative of amorphous packing. The surface deprotection reaction and presence of photoacid were quantified by near-edge X-ray absorption fine-structure measurements.


1993 ◽  
Vol 62 (12) ◽  
pp. 1353-1355 ◽  
Author(s):  
T. C. Huang ◽  
R. Savoy ◽  
R. F. C. Farrow ◽  
R. F. Marks

1988 ◽  
Vol 32 ◽  
pp. 269-278
Author(s):  
T. C. Huang ◽  
A. Segmuller ◽  
W. Lee ◽  
V. Lee ◽  
D. Bullock ◽  
...  

AbstractX-ray diffraction techniques have been used for the structure characterization of Y-Ba-Cu-O and Tl-Ca-Ba-Cu-O thin films. A powder diffraction analysis of Y-Ba-Cu-O films showed that the films deposited at 650°C on Si are polycrystalline and have an orthorhambic structure similar to that of the YBa2Cu3O7 bulk superconductors. In addition to the conventional powder diffraction technique, both the rocking curve and the grazing incidence diffraction methods were used to characterize a YBa2Cu3O7 film on (110) SrTiO3 substrate. Results showed that the film was epitaxially grown and aligned with its substrate in a true epitaxy. Phase identification and line broadening analyses of Tl-Ca-Ba-Cu-O films showed that the films are comprised of one or more superconducting phases and probably contain stacking faults.


2013 ◽  
Vol 770 ◽  
pp. 221-224 ◽  
Author(s):  
K. Sornsanit ◽  
M. Horprathum ◽  
C. Chananonnawathorn ◽  
P. Eiamchai ◽  
S. Limwichean ◽  
...  

In this study, silver-doped titanium dioxide (Ag-TiO2) thin films were prepared co-sputtering technique in order to promote photo-induced antibacterial applications. The high-purity Ag (99.995%) and Ti (99.995%) were simultaneously co-sputtering on BK7 glass and silicon (100) wafers substrate. The structure, morphology, surface roughness and optical properties were characterized by grazing-incidence X-ray diffraction (GIXRD), field-emission scanning electron microscopy (FE-SEM) and UV-Vis spectrophotometer, respectively. The results showed that the as-deposited Ag-TiO2 thin films had high transparency in the visible range. The antibacterial activity was studied in the presence and in the absence of UV irradiation against Escherichia coli as a model for Gram-negative bacteria. The results indicated that, in comparison to conventional TiO2 films, the Ag-TiO2 thin films exhibited excellent antibacterial properties under the UV illumination.


2021 ◽  
Vol 103 (23) ◽  
Author(s):  
Adrien Perrichon ◽  
Anton Devishvili ◽  
Kristina Komander ◽  
Gunnar K. Pálsson ◽  
Alexei Vorobiev ◽  
...  

2011 ◽  
Vol 44 (5) ◽  
pp. 983-990 ◽  
Author(s):  
Chris Elschner ◽  
Alexandr A. Levin ◽  
Lutz Wilde ◽  
Jörg Grenzer ◽  
Christian Schroer ◽  
...  

The electrical and optical properties of molecular thin films are widely used, for instance in organic electronics, and depend strongly on the molecular arrangement of the organic layers. It is shown here how atomic structural information can be obtained from molecular films without further knowledge of the single-crystal structure. C60 fullerene was chosen as a representative test material. A 250 nm C60 film was investigated by grazing-incidence X-ray diffraction and the data compared with a Bragg–Brentano X-ray diffraction measurement of the corresponding C60 powder. The diffraction patterns of both powder and film were used to calculate the pair distribution function (PDF), which allowed an investigation of the short-range order of the structures. With the help of the PDF, a structure model for the C60 molecular arrangement was determined for both C60 powder and thin film. The results agree very well with a classical whole-pattern fitting approach for the C60 diffraction patterns.


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