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20 papers
Multi Spectral Switchable Infra-Red Reflectance Resonances in Highly Subwavelength Partially Oxidized Vanadium Thin Films
Ashok P, Yogesh Singh Chauhan, Amit Verma
Phase transition materials are promising for realization of switchable optics. In this work, we show reflectance resonances in the near-infrared and long-wave infrared wavelengths…
Effect of Vanadium Thickness and Deposition Temperature on VO2 Synthesis using Atmospheric Pressure Thermal Oxidation
Ashok P, Yogesh Singh Chauhan, Amit Verma
Vanadium dioxide (VO2) is a phase transition material that undergoes a reversible insulator-metal phase transition at ~ 68 C. Atmospheric pressure thermal oxidation (APTO) of vanad…
High Infrared Reflectance Modulation in VO2 Films Synthesized on Glass and ITO coated Glass substrates using Atmospheric Oxidation of Vanadium
Ashok P, Yogesh Singh Chauhan, Amit Verma
Vanadium Dioxide (VO2) is a strongly correlated material, which exhibits insulator to metal transition at ~68 C along with large resistivity and infrared optical reflectance modula…
Vanadium Dioxide Thin Films Synthesized Using Low Thermal Budget Atmospheric Oxidation
P Ashok, Yogesh Singh Chauhan, Amit Verma
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 °C. In this…
Temperature Dependence of Heteroepitaxy on c-plane Sapphire using Low Pressure Chemical Vapor Deposition
Gavax Joshi, Yogesh Singh Chauhan, Amit Verma
has drawn significant attention for power electronics and deep ultraviolet (UV) photodetectors owing to its wide bandgap of ~ 4.4 - 4.9 eV and high electric breakdown s…
Adsorption-controlled growth of La-doped BaSnO3 by molecular-beam epitaxy
Hanjong Paik, Zhen Chen, Edward Lochocki +14
Epitaxial La doped BaSnO3 films were grown in an adsorption controlled regime by molecular beam epitaxy, where the excess volatile SnOx desorbs from the film surface. A film grown…