In the present study we have investigated dielectric properties such as constant (ε'), loss (ε"), real part of electrical modulus (M'), imaginary electric (M") and AC conductivity, (σac) in wide range applied voltage, temperature frequency for Ni/n-TiO2/p-Si/Al heterojunction. A nanocrystalline TiO2 layer was grown on p-type boron doped silicon oxygen-controlled environment using optimized KrF ...

Although semiconductors such as silicon (Si), gallium arsenide (GaAs), and gallium phosphide (GaP) have band gaps that make them efficient photoanodes for solar fuel production, these materials are unstable in aqueous media. We show that TiO2 coatings (4 to 143 nanometers thick) grown by atomic layer deposition prevent corrosion, have electronic defects that promote hole conduction, and are suf...

This study aimed to present the differences in corrosion properties and protective ability of two bi-layer systems obtained on low-carbon steel a model corrosive medium 5% NaCl solution. These newly developed consist Zn-Co (3 wt.%) or Zn-Ni (10 alloy coatings as under-layers very thin TiO2 sol-gel film top-layer. Scanning electron microscopy (SEM) is used for characterization surface morphology...

This review outlines the development of electroless Ni–P composite coatings. It highlights the method of formation, mechanism of particle incorporation, factors influencing particle incorporation, effect of particle incorporation on the structure, hardness, friction, wear and abrasion resistance, corrosion resistance, high temperature oxidation resistance of electroless Ni–P composite coatings ...

The objective of the study was the estimation of the effect of surfactants on the toxicity of ZnO, TiO2 and Ni nanoparticles (ENPs) towards Daphnia magna. The effect of hexadecyltrimethylammonium bromide (CTAB), triton X-100 (TX100) and 4-dodecylbenzenesulfonic acid (SDBS) was tested. The Daphtoxkit F test (conforming to OECD Guideline 202 and ISO 6341) was applied for the toxicity testing. Bot...

Wen, R.-T. 2015. Electrochromism in Metal Oxide Thin Films. Towards long-term durability and materials rejuvenation. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1323. 86 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9421-6. Electrochromic thin films can effectively regulate the visible and infrared light passing through a wi...

removal of thiosulfate (s2o32-, 200 mg/l) from simulated wastewater samples was investigated under varying co-pollutants and ph conditions employing the titanium dioxide (tio2) mediated photocatalysis. for thiosulfate only studies higher substrate removal was noted at lower ph with a specific trend of ph 4 > ph 7 > ph 10. furthermore, near complete thiosulfate removal was also achieved at ph 4....