Growth temperature dependent dielectric properties of BiFeO3 thin films deposited on silica glass substrates

2012 ◽  
Vol 520 (13) ◽  
pp. 4470-4474 ◽  
Author(s):  
Taimur Ahmed ◽  
Andrei Vorobiev ◽  
Spartak Gevorgian
2019 ◽  
Vol 27 (01) ◽  
pp. 1950083 ◽  
Author(s):  
H. H. GULLU ◽  
M. PARLAK

Zn–In–Se thin films were fabricated on the ultrasonically cleaned glass substrates masked with clover-shaped geometry by thermal evaporation of its elemental sources. Temperature-dependent conductivity characteristics of the films were investigated under dark and illuminated conditions. The semiconductor type of the films was found as n-type by thermal probe test. According to the van der Pauw technique, the dark electrical conductivity analyses showed that the variations of conductivity of unannealed and annealed at [Formula: see text]C samples are in exponential dependence of temperature. These conductivity profiles were found to be dominated by the thermionic emission at high temperature region whereas their behaviors at low temperatures were modeled by hopping theory. On the contrary, as a result of the further annealing temperatures, the surface of the samples showed semi-metallic characteristics with deviating from expected Arrhenius behavior. In addition, the temperature-dependent photoconductivity of the films was analyzed under different illumination intensities and the results were explained by the supra-linear characteristic based on the two-center recombination model.


2015 ◽  
Vol 3 (44) ◽  
pp. 22311-22315 ◽  
Author(s):  
Shuqun Chen ◽  
Martyn McLachlan ◽  
Andrei Sapelkin ◽  
Russell Binions

Aerosol assisted chemical vapour deposition has been used to fabricate transparent conductive ZnO thin films with highly hexagonal, textured surfaces and ultra high haze on silica glass substrates.


2005 ◽  
Vol 2005.80 (0) ◽  
pp. _9-27_-_9-28_
Author(s):  
Kenichiro TERADA ◽  
Takaaki SUZUKI ◽  
Isaku KANNO ◽  
Hidetoshi KOTERA ◽  
Kiyotaka WASA

2007 ◽  
Vol 14 (06) ◽  
pp. 1079-1082 ◽  
Author(s):  
HONGXIA LI ◽  
XIN WU ◽  
RENGUO SONG ◽  
JIYANG WANG

High-quality Nd:LuVO 4 thin films have been grown on silica glass substrates by using a pulsed laser deposition technique. X-ray diffraction results show that the as-deposited Nd:LuVO 4 film is basically oriented polycrystalline, and strong (200) peak was revealed. The waveguide property was characterized by the prism-coupling method. The refractive index of the propagation mode is higher than that of the silica glass substrate which means that the dips correspond to real propagation mode, where the light could be well defined. The surface morphology of the deposited Nd:LuVO 4 films was also observed by using an atomic force microscopy.


2012 ◽  
Vol 7 (1) ◽  
Author(s):  
Huang-Wei Chang ◽  
Fu-Te Yuan ◽  
Chih-Wei Shih ◽  
Ching-Shun Ku ◽  
Ping-Han Chen ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document