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2D materials are emerging as promising nanomaterials for applications in energy storage and catalysis. In the wet chemical synthesis of MXenes, these 2D transition metal carbides and nitrides are terminated with a variety of functional…

Materials Science · Physics 2024-04-02 Mathias Krämer , Bar Favelukis , Maxim Sokol , Brian A. Rosen , Noam Eliaz , Se-Ho Kim , Baptiste Gault

Solution-based methods represent the most widespread approach used to deposit hybrid organic-inorganic perovskite films for low-cost but efficient solar cells. However, solution-process techniques offer limited control over film morphology…

As a unique perovskite transparent oxide semiconductor, high-mobility La-doped BaSnO3 films have been successfully synthesized by molecular beam epitaxy and pulsed laser deposition. However, it remains a big challenge for magnetron…

Materials Science · Physics 2024-06-12 Ruyi Zhang , Xinyan Li , Jiachang Bi , Shunda Zhang , Shaoqin Peng , Yang Song , Qinghua Zhang , Lin Gu , Junxi Duan , Yanwei Cao

We report the reduction in residual stress of AlN thin films and also the crystal structure, surface morphology and nanomechanical properties of magnetron sputtered as a function of substrate temperature (Ts, 35 - 600 ?C). The residual…

Materials Science · Physics 2017-07-25 Padmalochan Panda , R. Ramaseshan , N Ravi , G. Mangamma , Feby Jose , S. Dash , K. Suzuki , H. Suematsu

We relate the photochromic response of rare-earth oxy-hydride thin films (YHO, NdHO, GdHO and DyHO) synthesized by reactive magnetron sputtering to chemical composition. Depth profiles of the sample composition are extracted by a…

Applied Physics · Physics 2020-12-02 S. M. Aðalsteinsson , M. V. Moro , D. Moldarev , S. Droulias , M. Wolff , D. Primetzhofer

Thick (~50 nm) films of Hf were evaporated onto bare and oxidized Si(001) samples, and thin (~monolayer) films of Hf were evaporated onto clean Si(001)-(2x1) surfaces. Upon annealing to 1000$^/circ$C, films of HfSi2 were formed after…

Materials Science · Physics 2007-05-23 H. T. Johnson-Steigelman , A. V. Brinck , P. F. Lyman

Poly- and single-crystal thin films of U-Mo alloys have been grown both on glass and sapphire substrates by UHV magnetron sputtering. X-ray and Electron Backscatter Diffraction data indicate that for single-crystal U1-xMox alloys, the pure…

Materials Science · Physics 2013-11-07 A M Adamska , R Springell , T B Scott

Copper oxide thin films are deposited on quartz substrates by DC magnetron sputtering and the effect of deposition temperature on their optoelectronic properties is examined in detail. Scanning Electron Microscopy (SEM), X-ray diffraction…

Materials Science · Physics 2022-12-26 Aarju Mathew Koshy , A Sudha , Satyesh Kumar Yadav , Parasuraman Swaminathan

Thin films from the lanthanum vanadate nanoparticles were successfully grown by pulsed laser deposition method on glass and silicon substrates for the first time. Morphology and thickness of the films depend on a type of substrate and a…

We report on laser printing of conducting polymers directly from the solid phase. Laser Induced Forward Transfer is employed to deposit P3HT:PCBM films on glass/ITO/PEDOT:PSS substrates. P3HT:PCBM is widely used as the active material in…

Materials Science · Physics 2012-11-15 M. Kandyla , S. Chatzandroulis , I. Zergioti

Hydrogen is considered an alternative source of energy to fossil fuels for the fulfilment of current energy demands. Photocatalysis initiates the hydrogen evolution reaction which is believed to be the greenest approach to produce hydrogen…

The current energy transition imposes a rapid implementation of energy storage systems with high energy density and eminent regeneration and cycling efficiency. Metal hydrides are potential candidates for generalized energy storage, when…

We present our work on High Energy Material detection based on thin film of Lithium using the phenomenon of Optical Pumping. The Li atoms present in the thin film are optically pumped to one of the ground hyperfine energy levels so that…

Atomic Physics · Physics 2014-12-10 Sachin Barthwal , Ashok V. S

Vanadium dioxide is a complex oxide material, which shows large resistivity and optical reflectance change while transitioning from the insulator to metal phase at ~68 {\deg}C. In this work, we use a modified atmospheric thermal oxidation…

Applied Physics · Physics 2021-05-24 P Ashok , Yogesh Singh Chauhan , Amit Verma

The synthesis of stoichiometric and epitaxial pyrochlore iridate thin films presents significant challenges yet is critical for unlocking experimental access to novel topological and magnetic states. Towards this goal, we unveil an in-situ…

It is known that solid-state reaction in high-pressure oxygen can stabilize high-oxidation phases of Y-Ba-Cu-O superconductors in powder form. We extend this superoxygenation concept of synthesis to thin films which, due to their large…

Superconductivity · Physics 2018-04-04 H. Zhang , N. Gauquelin , C. McMahon , D. G. Hawthorn , G. A. Botton , J. Y. T. Wei

We report a systematic comparison of niobium nitride thin films deposited on oxidized silicon substrates by reactive DC magnetron sputtering and reactive high-power impulse magnetron sputtering (HiPIMS). After determining the nitrogen gas…

Superconductivity · Physics 2024-11-22 Hudson T. Horne , Collin M. Hugo , Brandon C. Reid , Daniel F. Santavicca

Thin films of the molecular magnet Mn12-acetate, [Mn12 O12(CH3COO)16 (H2O)4] 2CH3COOH 4H2O, have been prepared using a laser ablation technique with a nitrogen laser at low laser energies of 0.8 and 2 mJ. Chemical and magnetic…

Polystyrene and polyvinyl chloride thin films are explored as sample supports for extreme ultraviolet (XUV) spectroscopy of molecular transition metal complexes. Thin polymer films prepared by slip-coating are flat, smooth, and transmit…

Chemical Physics · Physics 2021-08-17 Yusef Shari'ati , Josh Vura-Weis

Compositionally graded Fe-Pt thin films were prepared on stationary 100 mm Si substrates by magnetron sputtering a base target of Fe on which a piece of Pt is asymmetrically positioned. Energy Dispersive X-Ray analysis was used to map the…