Structural, electrical and optical properties of ITO films with a thin TiO2 seed layer prepared by RF magnetron sputtering

Song, Shumei; Yang, Tianlin; Li, Yanhui; Pang, Zhiyong; Lin, Lin; Lv, Maoshui; Han, Shiguo

doi:10.1016/j.vacuum.2009.01.003

Cited by 17 publications

(10 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…TiO 2 has been widely studied regarding various applications, utilizing the photo catalytic and transparent conductivity, which strongly depend on the crystalline structure, morphology and crystallite size [8]. TiO 2 nanoparticles have been prepared by different methods such as, chemical precipitation method [9],chemical vapour deposition (CVD) [10], the sol-gel technique [11], sputtering [12], hydrolysis, micro emulsion method [13], spray deposition [14], aerosol-assisted chemical vapour deposition [15], thermal plasma [16], hydrothermal method [17], microwave assisted hydrothermal synthesis [18], solvothermal method [19] and flame combustion method [20]. Among these methods sol-gel method is a simple method to synthesis TiO 2 nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Charecterization Studies of Nano Tio2 Prepared via Sol-Gel Method

Perumal¹

2014

IJRET

View full text Add to dashboard Cite

Nanoparticles of titanium dioxide doped with Fe2+ ions have been synthesized via sol-gel technique using Titanium tetraisopropoxide (TTIP) and ferrous sulphate as a precursors. The synthesized nanopowders were characterized by Powder X-ray Diffraction (PXRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), Ultraviolet Visible (UV-Vis) and Photoluminescence (PL) Spectroscopy. PXRD pattern indicates the presence of pure crystalline anatase phase TiO 2 with average crystallite size of 14 nm. FTIR spectra showed the vibrational bands of Ti-O networks. The morphology of the as prepared samples and chemical constituents of the nanoparticles studied using SEM and EDAX analysis. From the UV-Vis spectra and PL spectra the optical properties of TiO 2 were studied and discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis and Charecterization Studies of Nano Tio2 Prepared via Sol-Gel Method

Perumal¹

2014

IJRET

View full text Add to dashboard Cite

show abstract

“…Solution phase synthesis is e-ISSN:2321-6212 p-ISSN:2347-2278 the most preferred technique for the preparation of TiO 2 in the form of powders and thin films. Chemical precipitation method [22] , Chemical Vapour Deposition (CVD) [23] , the sol-gel technique [24] , sputtering [25] , hydrolysis, micro-emulsion method [26] , spray deposition [27] , aerosol-assisted chemical vapour deposition [28] , thermal plasma [29] , hydrothermal method [30] , microwave assisted hydrothermal synthesis [31] , solvothermal method [32] and flame combustion method [33] electrodeposition [33] , sonochemical method [34] , and microwave method [35] .…”

Section: Preparation Methods Of Tio 2 Nano-particlesmentioning

confidence: 99%

“…•− , HO 2 • or HO •− species to generate intermediates that ultimately lead to CO 2 (Eqs. (23)(24)(25)(26)(27)(28)(29)).…”

Section: Photo-catalytic Degradation Mechanisms Of Dyementioning

confidence: 99%

Advances in Photo-catalytic Materials for Environmental Applications

Ra¹

2016

Res. Rev. J Mat. Sci

View full text Add to dashboard Cite

INTRODUCTIONOver two thirds of Earth's surface is covered by water; less than a third is taken up by land. As Earth's population continues to grow, people are putting ever-increasing pressure on the planet's water resources. In a sense, our oceans, rivers, and other inland waters are being "squeezed" by human activities-not so they take up less room, but so their quality is reduced. Poorer water quality means water pollution. We know that pollution is a human problem because it is a relatively recent development in the planet's history: before the 19 th century Industrial Revolution, people lived more in harmony with their immediate environment. As industrialization has spread around the globe, so the problem of pollution has spread with it. When Earth's population was much smaller, no one believed pollution would ever present a serious problem. It was once popularly believed that the oceans were far too big to pollute. Today, with around 7 billion people on the planet, it has become apparent that there are limits. Pollution is one of the signs that humans have exceeded those limits.Water pollution can be defined in many ways. Usually, it means one or more substances have built up in water to such an extent that they cause problems for animals or people. Water pollution almost always means that some damage has been done to an ocean, river, lake, or other water source. A 1969 United Nations report defined ocean pollution as: "The introduction by man, directly or indirectly, of substances or energy into the marine environment (including estuaries) resulting in such deleterious effects as harm to living resources, hazards to human health, hindrance to marine activities, including fishing, impairment of quality for use of sea water and reduction of amenities."Most water pollution doesn't begin in the water itself. Take the oceans: around 80 percent of ocean pollution enters our seas from the land. Virtually any human activity can have an effect on the quality of our water environment. When farmers fertilize the fields, the chemicals they use are gradually washed by rain into the groundwater or surface waters nearby. Sometimes the causes of water pollution are quite surprising. Chemicals released by smokestacks (chimneys) can enter the atmosphere and then fall back to earth as rain, entering seas, rivers, and lakes and causing water pollution. That's called atmospheric deposition. Water pollution has many different causes like: Sewage, Nutrients, Chemical waste, radioactive waste, Oil pollution, Plastics and Alien species. The common pollutants include toxic organic compounds like chlorinated and non-chlorinated aliphatic and aromatic compounds, dyes, inorganic compounds like heavy metals, noxious gases like NO x , SO x , CO and NH 3 , and pathogens like bacteria, fungi and viruses. ABSTRACTThe growth of industry worldwide has extremely increased the generation and accumulation of waste by products. This has caused severe environmental problems that have become a major concern. Because of this, photo-catalytic polluta...

show abstract

“…It is a wide band gap material ( ̴ 3.6 -4.0 eV) with low electrical resistivity and because of those factors, it dominates the optoelectronic market. ITO constitutes a rare and expensive indium metal which reflect in the market value of the material [6]. Hence, the need for reduction of ITO consumption is necessary for friendly market value.…”

Section: Introductionmentioning

confidence: 99%

Structural optical and electrical properties of transparent conductive ITO/Al-Ag/ITO multilayer contact

Isiyaku¹,

Ali²,

Nayan³

2019

Preprint

View full text Add to dashboard Cite

Developing a new design and structure of transparent conductive oxides (TCO) materials to improve performance in optoelectronic devices are important and quite challenging. Microstructural, optical and electrical properties of sandwiched Al-Ag metals interlayer between top and bottom ITO layers (ITO/Al-Ag/ITO) have been investigated. The multilayer ITO/Al-Ag/ITO (IAAI) films were prepared using RF and DC magnetron sputtering method. Post annealing treatment at 400oC was conducted on IAAI and ITO (for reference) films in air. X-ray diffraction measurements show that the insertion of Al-Ag intermediate bilayer led to the crystallization of Ag interlayer even at as-deposited stage. Peaks intensities at ITO (222), Ag (111) and Al (200) crystal plane were observed after annealing treatment, indicating an enhancement in crystallinity of the IAAI film. The post-annealed IAAI film reveals a continuous and smooth surface roughness with improved growth in grain size as examined by atomic force microscopy (AFM) and field emission scanning electron microscopic (FESEM) respectively. Comparing the optoelectronic properties of IAAI film with single ITO film, the annealed IAAI film exhibited a remarkable improvement in optical transmittance (86.1%) with a very low sheet resistance of 2.93 Ω/sq as measured by UV-Vis spectrophotometer and four-point probe method. The carrier concentration increased more than double when Al-Ag layer was inserted between the ITO layers as determined by Hall Effect measurements. The under layer Al film helps to halts the Ag film agglomeration and oxidation which subsequently enhances the stability of IAAI multilayer film. The performance of IAAI contact has been found to be high at 76.4 × 10-3 Ω compares to single ITO (69.4 × 10-3) contact as calculated by the figure of merit (FOM).

show abstract

Structural, electrical and optical properties of ITO films with a thin TiO2 seed layer prepared by RF magnetron sputtering

Cited by 17 publications

References 23 publications

Synthesis and Charecterization Studies of Nano Tio2 Prepared via Sol-Gel Method

Synthesis and Charecterization Studies of Nano Tio2 Prepared via Sol-Gel Method

Advances in Photo-catalytic Materials for Environmental Applications

Structural optical and electrical properties of transparent conductive ITO/Al-Ag/ITO multilayer contact

Contact Info

Product

Resources

About