Development of reflective co-sputtered nanostructured metallic films

Abstract

DC magnetron co-sputtering technique is utilised to develop reflective Ag-and Al-based metal films co-sputtered with Ni deposited on quartz glass substrates. The sputtered films are characterised by field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM) and X-ray diffraction (XRD) techniques to investigate microstructure, topology and phase analysis, respectively. Further, average thermo-optical properties such as solar reflectance, absorptance and IR emittance and electrical property such as sheet resistance of the deposited films are evaluated. The reflectance property as a function of wavelength is also investigated. Sputtered Ag and Al films show high (>93%) reflectance, however, co-sputtered Al + Ni and Ag + Ni offer comparatively lesser value, e.g. 45% and 73%, respectively. The significant lower reflectance of Al + Ni is possibly due to the presence of higher amount of Ni in the film and the formation of intermetallic compounds.

Double shadow masking sample preparation method for in‐situ TEM characterization

“…Vanadium oxides are popular as functional material for satellites to battery applications. [ 32,33 ] These oxides possess complex oxidation states [ 17,34 ] and are highly beam sensitive. [ 35 ] The sample preparation of crystalline vanadium oxides for in‐situ temperature based TEM characterization were carried out by several methods viz.…”

Multifractal properties of the molybdenum ribbon surface at mechanical loading

“…This is because nanomaterials have qualitatively new properties, functional and performance characteristics that differ significantly from those of macroscopic objects [1][2][3]. The functional properties of such materials are of interest in terms of hetero-catalysis, sensorics, microelectronics and much more [4][5][6][7]. One of the methods of obtaining nanomaterials is the dispersion of macroscopic solids, in which their mechanical, thermal, chemical (or joint) destruction occurs.…”

Изменения На Поверхности Гофрированной Платиновой Фольги Под Нагрузкой

“…В последние годы активно развивается область поверхностной инженерии (Surface Engineering). Основной задачей этого направления является изменение структуры поверхности твердого тела с целью придания ей определенных функциональных свойств [1][2][3]. С этой целью поверхность материала подвергается модификации (например: механическое, температурное, химическое, воздействие высокоэнергетическими частицами и пр.…”