scholarly journals Experimental Qualification of the Process of Electrostatic Spray Deposition

Coatings ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 294 ◽  
Author(s):  
Kang ◽  
Kim ◽  
Kim ◽  
Choi ◽  
Lee

The electrostatic spray deposition (ESD) is a method of coating thin films based on electrostatic atomization. This paper proposes a method of quantifying the transport of droplets using images of spray patterns measured by the vision system during the ESD process, and verifies by experiment the correlation between the quantified parameters for the dispersion shape of the spray and the thickness of the deposited thin film. When using the proposed method, the ESD process can be optimized simply by monitoring variations of the spray shapes caused by the process conditions. In addition, the proposed method can be applicable to the in-line monitoring method of the variation in the transport of droplets during the ESD process.

2015 ◽  
Vol 1131 ◽  
pp. 153-156 ◽  
Author(s):  
Direklit Chantarawong ◽  
Korakot Onlaor ◽  
Thutiyaporn Thiwawong ◽  
Benchapol Tunhoo

Titanium dioxide (TiO2) nanoparticles thin films were prepared by electrostatic spray deposition technique. The effect of the deposition times on properties of TiO2 films was investigated. The characteristics of TiO2 thin films were performed by X-ray diffraction, and Raman spectroscopy. In addition, the TiO2 nanoparticles thin film was deposited onto the interdigited electrodes to fabricate the humidity sensor device. The humidity adsorption and desorption properties of the sensor were studies. The sensing mechanism of the humidity device can be explained by complex impedance analysis.


2016 ◽  
Vol 675-676 ◽  
pp. 261-264
Author(s):  
Kasidid Chansaengsri ◽  
Korakot Onlaor ◽  
Thutiyaporn Thiwawong ◽  
Benchapol Tunhoo

In this work, cobalt oxide thin films were prepared by electrostatic spray deposition (ESD) technique. The influence of the substrate temperatures on properties of film was investigated. Phase transformation of cobalt oxide thin films due to the effect of different substrate temperature was also observed. Cyclic voltammetry was used to measure the performance of cobalt oxide supercapacitor. At higher substrate temperature, the cobalt oxide thin films exhibit the high specific capacitance due to the effect of phase transformation in cobalt oxide films.


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