Development of reflective co-sputtered nanostructured metallic films. (4th March 2021)

• Record Type: Journal Article
• Authors: Prajwal, K.; Priyanka, G. L.; Hasan, Mohammed Adnan; Carmel Mary Esther, A.; Sridhara, N.; Rajendra, A.; Arya, S. B.; Dey, Arjun
• Is Part Of: Surface engineering. Volume 37:Number 3(2021)
• Page Start: 400
• Page End: 405
• Publication Date: 2021-03-04
• Subjects: High reflective metal films -- co-sputtering -- thermo-optical properties -- microstructure; Surfaces (Technology) -- Periodicals; Coatings -- Periodicals; 620.4405
• DOI: 10.1080/02670844.2020.1781376
• Languages: English
• ISSNs: 0267-0844

Abstract

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.