Growth of Fe2O3 thin films and Fe2O3-doped ZnO micron-flower by using modified Spray Coating Method

2015 ◽  
pp. 31-34
Keyword(s):  
Thin Films ◽  
Spray Coating ◽  
Coating Method ◽  
Doped Zno

Optical, magnetic and structural properties of Cr-doped ZnO thin films by sol–gel dip-coating method

2017 ◽  
Vol 4 (9) ◽  
pp. 096403 ◽  
Author(s):  
Zohra N Kayani ◽  
Marya Siddiq ◽  
Saira Riaz ◽  
Shahzad Naseem
Keyword(s):  
Thin Films ◽  
Structural Properties ◽  
Sol Gel ◽  
Dip Coating ◽  
Zno Thin Films ◽  
Coating Method ◽  
Doped Zno ◽  
Dip Coating Method

Multifractal analysis of Mg‐doped ZnO thin films deposited by sol–gel spin coating method

2021 ◽  
Author(s):  
Ştefan Ţălu ◽  
Samah Boudour ◽  
Idris Bouchama ◽  
Bandar Astinchap ◽  
Hamta Ghanbaripour ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Multifractal Analysis ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno ◽  
Mg Doped

Deposition of Ag 2~6 mol%-Doped ZnO Photocatalyst Thin Films by Thermal Spray Coating Method for E.coli Bacteria Degradation

2015 ◽  
Vol 827 ◽  
pp. 3-6 ◽  
Author(s):  
Heri Sutanto ◽  
Iis Nurhasanah ◽  
Eko Hidayanto
Keyword(s):  
Thin Films ◽  
Thermal Spray ◽  
Sol Gel ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Alcoholic Solution ◽  
Sem Images ◽  
E Coli ◽  
Coating Method ◽  
Temperature Deposition

ZnO doped with 2~6 mol% Silver (Ag) photocatalyst thin films has been deposited on glass substrate by thermal spray coating with temperature deposition of 250°C. A gel of ZnO:Ag precursor has been synthesized by sol-gel route from aqueous/alcoholic solution of zinc acetate dehydrate and silver nitrate mixture at room temperature. The morphology of ZnO:Ag films were investigated scanning electron microscopy (SEM). 3D SEM images of ZnO:Ag thin films show the rough morphology with roughness mean square (rms) of 150 to 195 nm. The grain size of ZnO:Ag films were found in the range 76,5 to 304,8 nm. The photoactivity examination of ZnO:Ag photocatalyst films show the E. Coli bacteria degraded up to 99.99% under sunlight irradiation for 4 hours.

Anode-Supported SOFCs with Electrolyte Thin Films Prepared by Spray Coating

2009 ◽  
Vol 631-632 ◽  
pp. 319-324
Author(s):  
Chang Sheng Ding ◽  
Hong Fei Lin ◽  
Kazuhisa Sato ◽  
Yoshifumi Tsutai ◽  
Mabito Iguchi ◽  
...  
Keyword(s):  
Thin Films ◽  
Operating Temperature ◽  
Spray Coating ◽  
Electrical Performance ◽  
Coating Process ◽  
Preparation Process ◽  
Doped Ceria ◽  
Maximum Power Density ◽  
Electrolyte Film ◽  
Coating Method

Dense gadolinium doped ceria (GDC) electrolyte thin films were prepared on porous NiO-GDC substrates by spray coating process. Microstructure of the GDC thin films and effect of preparation process on the microstructure were examined. SEM results show that uniform and dense GDC thin films with a thickness of approximately 1 μm were successfully prepared on porous NiO-GDC anodes. Anode-supported single cell with the thin GDC electrolyte film was tested using humidified hydrogen as a fuel, and exhibited relatively high electrical performance at low operating temperature (the maximum power density of 135 mW/cm2 at 600 °C). This means that the thin GDC film may be applicable to an electrolyte for anode-supported SOFCs. The experimental results suggest that the spray coating method developed in this study may offer a useful route for preparing thin and dense electrolytes of SOFCs.

Effect of Bi dopant on morphological and optical properties of ZnO semiconductor films produced by the sol-gel spin coating process

2021 ◽  
Vol 63 (8) ◽  
pp. 778-782
Author(s):  
Tülay Yıldız ◽  
Nida Katı ◽  
Kadriye Yalçın
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Roughness ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Film ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno

Abstract In this study, undoped semiconductor ZnO thin film and Bi-doped ZnO thin films were produced using the sol-gel spin coating method. By changing each parameter of the spin coating method, the best conditions for the formation of the film were determined via the trial and error method. When the appropriate parameter was found, the specified parameter was applied for each film. The structural, superficial, and optical properties of the films produced were characterized via atomic force microscope (AFM), UV-visible spectroscopy, and Fourier transform infrared (FTIR), and the effects of Bi dopant on these properties were investigated. When the morphological properties of the undoped and Bi-doped ZnO films were examined, it was observed that they had a structure in a micro-fiber shape consisting of nanoparticles. When the surface roughness was examined, it was observed that the surface roughness values became larger as the rate of Bi dopant increased. By examining the optical properties of the films, it was determined that they were direct band transition materials and Bi-doped thin films were involved in the semiconductor range. In addition, optical properties changed positively with Bi dopant. Since Bi-doped ZnO thin film has a wide bandgap and good optical properties, it is a material that can be used in optoelectronic applications.

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