On-chip integrations of photonic waveguides and high-performance electrically-driven devices, by combining different active or passive optical components, are imperative towards the advancement of nanophotonic circuitry systems. We experimentally demonstrate the collective optical functionalities of ZnO microstructures towards designing an integrated photonic system by combining the optical wav...

The enhanced electron field emission (EFE) properties of high aspect ratio, vertically aligned SiNW-ZnO core-shell arrays are presented. These core-shell arrays are prepared by a thin, controlled, highly crystalline and conformal coating of zinc oxide as shell using the plasma assisted-atomic layer deposition (PA-ALD) route on vertically aligned silicon nanowire arrays core. The core-shell nano...

The Research on Preparation of ZnO Nano-material and Photoelectric Devices Zinc Oxide (ZnO) is a wide band gap semiconductor material, which has a band gap of 3.37 eV at room temperature, its most important characteristic is the high exciton bounding energy of 60 meV. Based on these characteristics, ZnO has potential applications in short wavelength photoelectric devices. Since nanodevices such...

Low turn-on field of 2.3 V/µm was found for the emission current density of 10 µA/cm2 from 2D porous ZnO nanosheets. High current density of 0.76 mA/cm2 was drawn at an applied field of 4.1 V/µm. The observed low turn-on field of porous ZnO nanosheets has been found to be superior to the other ZnO nanostructures reported in the literature. Also, the emission current stability over a period of 3...

   In the present study, various size of Zinc Oxide Nanoparticles (ZnO NPs) was synthesized via Sol-gel method. The photocatalytic activity of the synthesized ZnO NPs was investigated for the Decolourization of three different colored dyes viz. Congo Red, Acid Blue 9 and Coomassie Brilliant Blue R-250 under UV lamp. Zinc Chloride (Zncl2) and Sodium Hydroxide (NaOH) were ...

Facile low-temperature chemical route for the synthesis of ZnO nanoparticles is reported in this paper. Morphologically uniform and spherical shape with an average particle size of 8.8 nm and wurtzite phase with the crystalline structure of as-synthesized ZnO nanoparticles were confirmed by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmissi...

This report outlines the techniques required to obtain and interpret Coherent X-ray Diffraction (CXD) imaging measurements for crystalline materials. ZnO will be introduced as the principle material under investigation with a brief overview of research to date. Chemical Vapour Transport Deposition (CVTD) was used to synthesise ZnO nanorods, initially Scanning Electron Microscopy (SEM) determine...

In order to develop film electrodes for the surface acoustic wave (SAW) devices operating in harsh high-temperature environments, novel Al₂O₃/Pt/ZnO/Al₂O₃ multilayered film electrodes were prepared by laser molecular beam epitaxy (LMBE) at 150 °C. The first Al₂O₃ layer was used as a barrier layer to prevent the diffusion of Ga, La, and Si atoms from the La₃Ga₅SiO14 (LGS) substrate to the film e...

Highly crystalline ZnO and Ga-modified zinc oxide (ZnO:Ga) nanoparticles containing 1, 3 and 5 atom% of Ga3+ were prepared by precipitation method at low temperature. The films were characterized by XRD, BET, XPS and SEM. No evidence of zinc gallate formation (ZnGa2O4), even in the samples containing 5 atom% of gallium, was detected by XRD. XPS data revealed that Ga is present into the ZnO matr...

High spatial density ZnO nanopillars (NPs) have been fabricated on catalyst- and pattern-free Si wafers using atmospheric pressure metal organic chemical vapor deposition (APMOCVD) at a moderate temperature (500 °C). The nanopillar diameter is ∼ 35 nm and the length is ∼ 150 nm, with a density of ∼ 2 × 10(9) cm( - 2). The growth evolution of the nanopillars, providing the (0001)(NP) ∐ (0001)(ZN...