scholarly journals Effect of substrate surface roughness on superconducting properties in La--214 copper oxide thin films

2005 ◽  
Vol 3 ◽  
pp. 276-279 ◽  
Author(s):  
Kurumi Shinohara ◽  
Atsushi Tanokura ◽  
Noriya Ichikawa ◽  
Hiroshi Sakama
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Copper Oxide ◽  
Substrate Surface ◽  
Superconducting Properties ◽  
Oxide Thin Films ◽  
Substrate Surface Roughness

Effect of Annealing Atmosphere on the Morphology of Copper Oxide Thin Films Deposited on TiO2 Substrates Prepared by Sol-Gel Process

2013 ◽  
Vol 594-595 ◽  
pp. 113-117 ◽  
Author(s):  
Dewi Suriyani Che Halin ◽  
Ibrahim Abu Talib ◽  
Abdul Razak Daud ◽  
Muhammad Azmi Abdul Hamid
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Grain Size ◽  
Copper Oxide ◽  
Spin Coating ◽  
Sol Gel ◽  
Annealing Atmosphere ◽  
Oxide Thin Films ◽  
Different Temperatures ◽  
Xrd Patterns

Copper oxide films were prepared via sol-gel like spin coating starting from methanolic solutions of cupric chloride onto the TiO2 substrates. Films were obtained by spin coating under room conditions (temperature, 25-30 °C) and were subsequently annealed at different temperatures (200-400 °C) in oxidizing (air) and inert (N2) atmospheres. X-ray diffraction (XRD) patterns showed crystalline phases, which were observed as a function of the annealing conditions. The film composition resulted single or multi-phasic depending on both temperature and atmosphere. The grain size of film was measured using scanning electron microscopy (SEM) and the surface roughness of thin films was characterized by atomic force microscopy (AFM). The grain size of which was annealed in air at 300 °C was 30.39 nm with the surface roughness of 96.16 nm. The effects of annealing atmosphere on the structure and morphology of copper oxide thin films are reported.

Photocatalytic Properties of ZnO-TiO2 Composite Films Prepared by Spray Pyrolysis

2018 ◽  
Vol 788 ◽  
pp. 68-73
Author(s):  
Jānis Grabis ◽  
Anita Letlena ◽  
Ints Šteins ◽  
Māra Lubāne ◽  
Aija Krūmiņa
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Photocatalytic Activity ◽  
Spray Pyrolysis ◽  
Surface Area ◽  
Substrate Surface ◽  
Composite Films ◽  
Zno Films ◽  
Simulated Solar Light ◽  
Substrate Surface Roughness

Thin films of ZnO, ZnO coated with TiO2 and ZnO modified with titania were prepared by using simple spray pyrolysis of zinc and titanium containing solutions. The photicatalytic activity of the obtained films was determined by degradation of MB solution under UV and simulated solar illumination. The photocatalytic activity of ZnO/TiO2 films depended on the content of titania, substrate surface roughness, surface area and deposition cycles. The highest activity under simulated solar light was detected for ZnO films containing 3 wt.% of TiO2.

scholarly journals Synthesis and characterisation of copper oxide thin films by double dip method

2021 ◽  
Vol 1070 (1) ◽  
pp. 012011
Author(s):  
Shifa Salam ◽  
Ben Jose ◽  
Rakhy Raphael ◽  
E I Anila
Keyword(s):  
Thin Films ◽  
Copper Oxide ◽  
Oxide Thin Films
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