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The present study describes a facile route of zinc oxide (ZnO) grows using the solution-dependent electrostatic spray deposition (ESD) method at temperatures ranging from 300 {\deg}C - 500 {\deg}C. In this work, zinc chloride (ZnCl2) was…

材料科学 · 物理学 2024-06-21 Fysol Ibna Abbas , Mutsumi Sugiyama

We study a model for thin film electrodeposition in which instability development by preferential adsorption and reduction of cations at surface peaks competes with surface relaxation by diffusion of the adsorbates. The model considers…

材料科学 · 物理学 2019-03-05 F. D. A. Aarão Reis , Dung di Caprio , Abdelhafed Taleb

ZnO films have been grown on gold (111) by electrodeposition using two different OH- sources, nitrate and peroxide, in order to obtain a comparative study between these films. The morphology, structural and optical characterization of the…

材料科学 · 物理学 2011-09-27 C. V. Manzano , D. Alegre , O. Caballero-Calero , B. Alén , M. S. Martín-González

In the present study we report on properties of ZnCoO films grown at relatively low temperature by the Atomic Layer Deposition, using two reactive organic zinc precursors (dimethylzinc and diethylzinc). The use of these precursors allowed…

Nanocomposite thin films of Zinc Oxide and Silicon were grown by co-evaporating powdered ZnO and Si. This resulted in nanocrystallites of ZnO being embedded in Silicon. The mismatch in crystal structures of constituent materials result in…

材料科学 · 物理学 2009-11-13 Shabnam Siddiqui , Chhaya Ravi Kant , P. Arun , N. C. Mehra

We use real-time spectroscopic polarimetric observations of growth and a chemical model derived therefrom, to develop a method of growing dense, two-dimensional zinc oxide epitaxially on sapphire by metalorganic chemical vapor deposition.…

材料科学 · 物理学 2009-10-13 E. J. Adles , D. E. Aspnes

Zinc Oxide (ZnO) semiconductor is ideal candidates for ultra-violet (UV) photodetector due to its promising optoelectronic properties. Photodetectors based on ZnO nanostructures show very high photoconductivity under UV light, but they are…

材料科学 · 物理学 2019-12-02 Mehmet Ozdogan , Gokhan Utlu , Cem Celebi

We have investigated a method for substituting oxygen with nitrogen in EuO thin films, which is based on molecular beam epitaxy distillation with NO gas as the oxidizer. By varying the NO gas pressure, we produce crystalline, epitaxial…

材料科学 · 物理学 2012-05-23 R. Wicks , S. G. Altendorf , C. Caspers , H. Kierspel , R. Sutarto , L. H. Tjeng , A. Damascelli

Using kinetic Monte Carlo simulations, we show that molecular morphologies found in non-equilibrium growth can be strongly different from those at equilibrium. We study the prototypical hybrid inorganic-organic system 6P on ZnO(10-10)…

软凝聚态物质 · 物理学 2016-12-21 Nicola Kleppmann , Sabine H. L. Klapp

Transition metal oxides are state-of-the-art materials for catalysing the oxygen evolution reaction (OER), whose slow kinetics currently limit the efficiency of water electrolysis. However, microscale physicochemical heterogeneity between…

It is well known that non-enzymatic template directed molecular replicators X + nO ---> 2X exhibit parabolic growth d[X]/dt = k [X]^{1/2}. Here, we analyze the dependence of the effective replication rate constant k on hybridization…

生物大分子 · 定量生物学 2015-05-27 Harold Fellermann , Steen Rasmussen

We studied quantitatively the photochemistry of solid O3 and O2 films at 193 nm and 22 K with infrared spectroscopy and microgravimetry. Photolysis of pure ozone destroyed O3, but a small amount of ozone remained in the film at high…

化学物理 · 物理学 2015-05-19 U. Raut , M. J. Loeffler , M. Famá , R. A. Baragiola

We have investigated the initial growth behavior and resulting microstructural properties of heteroepitaxial ZnO thin films prepared by pulsed laser deposition on sapphire (0001) substrates. High-resolution x-ray diffraction and…

材料科学 · 物理学 2015-06-25 C. Liu , S. H. Chang , T. W. Noh , M. Abouzaid , P. Ruterana , H. H. Lee , D. -W. Kim , J. -S. Chung

NiO/ZnO heterostructures are grown on c-sapphire substrates using pulsed laser deposition (PLD) technique. X-ray diffraction study shows that the ZnO layer epitaxially grows along [0001]-direction on (0001)sapphire surface as expected.…

材料科学 · 物理学 2024-09-10 Bhabani Prasad Sahu , Amandeep Kaur , Simran Arora , Subhabrata Dhar

Cuprous oxide (Cu2O) films from 25 nm to 1500 nm were electrodeposited on n-Si(100) and Ni/n-Si(100) substrates from aqueous solution at room temperature. X-ray diffraction and transmission electron microscopy imaging show that the Cu2O…

The laboratory work presented here, simulates the chemistry on icy dust grains as typical for the 'CO freeze-out stage' in dark molecular clouds. It differs from previous studies in that solid-state hydrogenation and vacuum…

星系天体物理 · 物理学 2017-06-05 Gleb Fedoseev , Ko-Ju Chuang , Ewine F. van Dishoeck , Sergio Ioppolo , Harold Linnartz

Compact solid discharge products enable energy storage devices with high gravimetric and volumetric energy densities, but solid deposits on active surfaces can disturb charge transport and induce mechanical stress. In this Letter we develop…

化学物理 · 物理学 2013-07-26 B. Horstmann , B. Gallant , R. Mitchell , W. G. Bessler , Y. Shao-Horn , M. Z. Bazant

Polymer additives [like polyethylene oxide (PEO)] are widely used for smooth electrode deposition in aqueous zinc and a number of other battery systems currently investigated for energy storage applications. However, the precise mechanism…

Nanocomposite films of Zinc Oxide and Silicon were grown by thermal evaporation technique using varying ratios of ZnO:Si in the starting material. Analysis reveal the role of ZnO and amorphous silicon interface in contributing to relatively…

材料科学 · 物理学 2010-07-14 Shabnam , Chhaya Ravi Kant , P. Arun

Atomically flat, epitaxial, and stoichiometric thin films of the electronically phase separated compound (La$_{0.5}$Pr$_{0.5}$)$_{0.67}$Ca$_{0.33}$MnO$_{3}$ were grown on as-received and treated NdGaO$_{3}$ substrates by fine tuning of…

材料科学 · 物理学 2011-09-16 Hyoungjeen Jeen , Rafiya Javed , Amlan Biswas
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