Characterization of Silver Oxide Films Formed by Reactive RF Sputtering at Different Substrate Temperatures

Abstract

Silver oxide (A 2 O) films were deposited on glass and silicon substrates held at temperatures in the range 303-473 K by reactive RF magnetron sputtering of silver target. The films formed at room temperature were single phase Ag 2 O with polycrystalline in nature, while those deposited at 373 K were improved in the crystallinity. The films deposited at 423 K were mixed phase of Ag 2 O and Ag. Atomic force micrographs of the films formed at room temperature were of spherical shape grains with size of 85 nm, whereas those deposited at 473 K were with enhanced grain size of 215 nm with pyramidal shape. Electrical resistivity of the single phase films formed at room temperature was 5.2 × 10 −3 Ωcm and that of mixed phase was 4.2 × 10 −4 Ωcm. Optical band gap of single phase films increased from 2.05 to 2.13 eV with the increase of substrate temperature from 303 to 373 K, while in mixed phase films it was 1.92 eV.

Enhanced photo catalytic activity of Ag2O nanostructures through strontium doping

“…Ag 2 O a p-type semiconductor exists in different morphologies with the reported band gap ranging from 1.2 eV to 3.4 eV. The cubic crystal structure of silver oxide is analogous to Cu 2 O [13]. Due to its photosensitive nature and instability under irradiating light, Ag 2 O is often used as a prime photo catalytic material besides acting as a co-catalyst [14].…”

Ag/AgO Nanoparticles Grown via Time Dependent Double Mechanism in a 2D Layered Ni-PCP and Their Antibacterial Efficacy

“…The binding energy of Ag 3d 5/2 was shifted to 367.2 eV which indicates the presence of AgO. Further confirmation is obtained from the peaks at 570.4 and 602.4 eV which are ascribed to Ag 3p3 and Ag 3p1 of silver oxide33. The peak at 284 and 282.4 eV are attributed to co-condensation of ethanol and methanol on Ni(II) and Ni(III)34 in as-synthesized Ni-PCP and Ag/AgO@Ni-PCP respectively.…”

Synthesis and Characterization of Graphene Oxide and Reduced Graphene Oxide Composites with Inorganic Nanoparticles for Biomedical Applications

“…H, k, l indexes marked in Figure 6 were compared with Vanaja et al (2013) [ 48 ], Yang at al. (2019) [ 49 ], Reddy et al (2014) [ 50 ] and Sutrisno et al (2018) [ 51 ].…”