Journal ArticleDOI
Structural, Optical and Electrical Properties of ITO Thin Films
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TLDR
In this article, a transparent and conductive thin films of indium tin oxide were fabricated on glass substrates by the thermal evaporation technique and the structure and phase purity, surface morphology, optical and electrical properties of thin films were studied by x-ray diffractometry and Raman spectroscopy, scanning electron microcopy and atomic force microscopy.Abstract:
Transparent and conductive thin films of indium tin oxide were fabricated on glass substrates by the thermal evaporation technique. Tin doped indium ingots with low tin content were evaporated in vacuum (1.33 × 10−7 kpa) followed by an oxidation for 15 min in the atmosphere in the temperature range of 600–700°C. The structure and phase purity, surface morphology, optical and electrical properties of thin films were studied by x-ray diffractometry and Raman spectroscopy, scanning electron microcopy and atomic force microscopy, UV–visible spectrometry and Hall measurements in the van der Pauw configuration. The x-ray diffraction study showed the formation of the cubical phase of polycrystalline thin films. The morphological analysis showed the formation of ginger like structures and the energy dispersive x-ray spectrum confirmed the presence of indium (In), tin (Sn) and oxygen (O) elements. Hall measurements confirmed n-type conductivity of films with low electrical resistivity (ρ) ∼ 10−3 Ω cm and high carrier concentration (n) ∼ 1020 cm−3. For prevalent scattering mechanisms in the films, experimental data was analyzed by calculating a mean free path (L) using a highly degenerate electron gas model. Furthermore, to investigate the performance of the deposited films as a transparent conductive material, the optical figure of merit was obtained for all the samples.read more
Citations
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Journal ArticleDOI
The effect of post annealing temperature on grain size of indium-tin-oxide for optical and electrical properties improvement
Naser M. Ahmed,Fayroz A. Sabah,H.I. Abdulgafour,Ahmed Alsadig,Ahmed Alsadig,Abdelmoneim Sulieman,M. Alkhoaryef,M. Alkhoaryef +7 more
TL;DR: In this paper, the effect of grain size on the optical and electrical properties of ITO thin films under different annealing temperatures was determined, and it was observed that the grain size was strongly influenced by post-annealing technique and conditions applied, thus providing a tool for enhancing the optical properties of the film.
Journal ArticleDOI
Synthesis and electrochemical characterization of pseudocapacitive α-MoO3 thin film as transparent electrode material in optoelectronic and energy storage devices
S.A. Adewinbi,S.A. Adewinbi,B. A. Taleatu,R. A. Busari,Vusani M. Maphiri,Kabir O. Oyedotun,Ncholu I. Manyala +6 more
TL;DR: In this article, a cost effective method for preparing nanoporous MoO3 thin film from chemical reagents was presented, which reveals charge transport capability of MoO-3 structure for optoelectronic and energy storage devices.
Journal ArticleDOI
Electrical conductivity enhancement of indium tin oxide (ITO) thin films reactively sputtered in a hydrogen plasma
TL;DR: In this paper, the authors focused on the enhancement of the electrical conductivity of ITO thin films through reactive DC sputtering under a hydrogen plasma, and the films were deposited on heated substrates (350°C).
Journal ArticleDOI
Defect-Induced Tunable Permittivity of Epsilon-Near-Zero in Indium Tin Oxide Thin Films
TL;DR: The formation of structure defects and the electric field enhancement were further verified by finite-difference time domain (FDTD) simulation and the optical bandgaps were investigated to explain the existence of defect states.
Journal ArticleDOI
Optical, microstructural and vibrational properties of sol–gel ITO films
M. Nicolescu,Mihai Anastasescu,Jose M. Calderon-Moreno,A.V. Maraloiu,Valentin S. Teodorescu,Silviu Preda,Luminita Predoana,Maria Zaharescu,Mariuca Gartner +8 more
TL;DR: In this paper, a multilayer ITO thin film with 15 layers was obtained by successive depositions using the sol-gel & dip-coating method on three different substrates: glass, SiO2/glass and SiO 2/Si.
References
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Journal ArticleDOI
Applications and Processing of Transparent Conducting Oxides
Brian G. Lewis,David C. Paine +1 more
TL;DR: The first report of a transparent conducting oxide (TCO) was published in 1907, when Badeker reported that thin films of Cd metal deposited in a glow discharge chamber could be oxidized to become transparent while remaining electrically conducting as discussed by the authors.
Journal ArticleDOI
Structural, optical, and electrical properties of (Zn,Al)O films over a wide range of compositions
TL;DR: In this paper, the structural, optical, and electrical properties of (Zn,Al)O thin films were detailedly and systematically studied, and the optimal results of n-type AZO films were obtained at an Al content of 4at.
Journal ArticleDOI
Thin films engineering of indium tin oxide: large area flat panel displays application
TL;DR: The impact of oxygen and pressure with related structures on the macroscopic properties of the layers was studied in this paper, which revealed an ultra smooth surface with RMS values of about 1 nm.
Journal ArticleDOI
Structural and electrical studies on highly conducting spray deposited fluorine and antimony doped SnO2 thin films from SnCl2 precursor
TL;DR: In this article, a spray-deposition tin oxide thin film with fluorine, antimony and antimony dopants was presented, which was obtained by spray pyrolysis from a SnCl 2 precursor.
Journal ArticleDOI
Optical and electrical properties of transparent conductive ITO thin films deposited by sol-gel process
M Alam,David Cameron +1 more
TL;DR: In this paper, the electrical, optical and structural properties of ITO thin films were investigated by using four-point probe method, which showed that the ITO films were polycrystalline with a cubic bixbyite structure.