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Employing amorphous superconductors, such as Type-II molybdenum silicide (MoSi), instead of crystalline materials significantly simplifies the material deposition and scalable nanoscale prototyping, beneficial for quantum electronic and…

Using isothermal and temperature-dependent electrical measurements, we investigated the resistive switching mechanism of amorphous titanium oxide thin films deposited by a plasma-enhanced atomic layer deposition method between two aluminum…

Materials Science · Physics 2015-05-14 Hu Young Jeong , Jeong Yong Lee , Min-Ki Ryu , Sung-Yool Choi

Crystalline wurtzite zinc oxide (w-ZnO) can be used as a wide band gap semiconductor for light emitting devices and for transparent or high temperature electronics. The use of amorphous zinc oxide (a-ZnO) can be an advantage in these…

Materials Science · Physics 2022-11-29 M. Zubkins , J. Gabrusenoks , G. Chikvaidze , I. Aulika , J. Butikova , R. Kalendarev , L. Bikse

The structure, composition and electrophysical characteristics of low-temperature silicon dioxide films under influence of various technology factors, such as ion implantation, laser irradiation, thermal and photonic annealing, have been…

Materials Science · Physics 2017-08-03 B. I. Seleznev

This research for Eco-materials focuses on the improvement of photo response of titania thin films. The goal of this research is to find a suitable substrate for decreasing the band-gap of titania, to improve the microstructure and to seek…

Materials Science · Physics 2007-05-23 Wilfried Wunderlich , Nguyen Thi Hue , Sakae Tanemura

We report in situ characterized TiO2 thin-films deposited on optical fiber, having thicknesses in the 20-100nm range, and having enhanced conductivity values of 700S/cm upon interacting with hydrogen. This conductivity was achieved in pure…

Materials Science · Physics 2020-10-01 Jacob L. Poole , Paul R. Ohodnicki , Yang Yu , Jian Liu , Bret Howard , Sittichai Natesakhawat

Hexagonal boron nitride (h-BN) is a layered two-dimensional material with properties that make it promising as a dielectric in various applications. We report the growth of h-BN films on Ni foils from elemental B and N using molecular beam…

Materials Science · Physics 2015-05-29 S. Nakhaie , J. M. Wofford , T. Schumann , U. Jahn , M. Ramsteiner , M. Hanke , J. M. J. Lopes , H. Riechert

Plasma enhanced atomic layer deposition was used to deposit thin films of Ga2O3 on to c-plane sapphire substrates using triethylgallium and O2 plasma. The influence of substrate temperature and plasma processing parameters on the resultant…

We report on a laser annealing procedure which greatly improves the quality of suspended monolayers of chemical vapor deposition (CVD) grown MoSe2. Annealing with a green laser locally heats the suspended flake to approximately 600 K, which…

Materials Science · Physics 2018-09-18 Christopher Rogers , Dodd Gray , Nate Bogdanowicz , Hideo Mabuchi

We report, for the first time, quadrupole mass spectrometry of neutral and positive ionic hydrocarbon species measured at the rf biased substrate electrode of an inductively coupled plasma for acetylene rich C2H2:Ar mixtures under various…

Plasma Physics · Physics 2008-11-27 A. Baby , C. M. O. Mahony , P. D. Maguire

We report on the electrical properties of polycrystalline NbO2 thin film vertical devices grown on TiN coated SiO2/Si substrates using pulsed laser deposition. First, we analyzed the thickness and contact size dependences of threshold…

Applied Physics · Physics 2018-10-17 Toyanath Joshi , Pavel Borisov , David Lederman

Chemically _ driven isothermal close space vapour transport was used to prepare pure MoO2 films which were eventually converted to MoO3 by annealing in air. According to temperature_dependent Raman measurements, the MoO2/MoO3 phase…

Materials Science · Physics 2021-04-22 O. de Melo , Y. Gonzalez , A. Climent-Font , P. Galan , A. Ruediger , M. Sanchez , C. Calvo , G. Santana , V. Torres-Costa

Metal - organic nanocomposite thin films represent a versatile class of materials whose properties can be effectively tuned through external stimuli. In this study, Ag+C60 and Au+C60 nanocomposite thin films were briefly investigated to…

Classical molecular-dynamics simulations have been carried out to investigate densification mechanisms in silicon dioxide thin films deposited on an amorphous silica surface, according to a simplified ion-beam assisted deposition (IBAD)…

Materials Science · Physics 2009-11-07 Alexis Lefevre , Laurent J. Lewis , Ludvik Martinu , Michael R. Wertheimer

We report on an XPS study of AlN thin films grown on Si(100) substrates by ion beam sputter deposition (IBSD) in reactive assistance of N+/N2+ ions to unravel the compositional variation of their surface when deposited at different…

Materials Science · Physics 2015-10-05 Neha Sharma , S. Ilango , S. Dash , A. K. Tyagi

Graphene-based sponges doped with atomic nitrogen and boron were applied for the electrochemical degradation of persistent organic contaminants in one-pass, flow-through mode, and in a low-conductivity supporting electrolyte. The B-doped…

Chemical Physics · Physics 2021-09-30 Luis Baptista-Pires , Giannis-Florjan Norra , Jelena Radjenovic

We propose a mechanism to substantially rectify radiative heat flow by matching thin films of metal-to-insulator transition materials and polar dielectrics in the electromagnetic near field. By leveraging the distinct scaling behaviors of…

Applied Physics · Physics 2021-09-09 Qizhang Li , Haiyu He , Qun Chen , Bai Song

The remarkably high superconducting transition temperature and upper critical field of iron(Fe)-based layered superconductors, despite ferromagnetic material base, open the prospect for superconducting electronics. However, success in…

Using micro-Raman spectroscopy and scanning tunneling microscopy, we study the relationship between structural distortion and electrical hole doping of graphene on a silicon dioxide substrate. The observed upshift of the Raman G band…

Materials Science · Physics 2012-01-23 Sunmin Ryu , Li Liu , Stephane Berciaud , Young-Jun Yu , Haitao Liu , Philip Kim , George W. Flynn , Louis E. Brus

We report on the synthesis of high-quality Co-doped ZnO thin films using the pulsed laser deposition technique on (0001)-Al$_2$O$_3$ substrates performed in an oxidizing atmosphere, using Zn and Co metallic targets. We firstly optimized the…

Materials Science · Physics 2009-11-10 W. Prellier , A. Fouchet , B. Mercey , Ch. Simon , B. Raveau