Preparation of DSSC Photoanode Nanotitania Thin Films by Electrophoretic Deposition in an Aqueous Suspension

2011 ◽  
Vol 10 (04n05) ◽  
pp. 787-792 ◽  
Author(s):  
J. BALAJI ◽  
S. BOOMINATHASELLARAJAN ◽  
N. T. SASIKALA ◽  
BALA PRAVEEN CHAKKRAVARTHY RAGHUPATHY

A simple route involving the reaction between zinc powder and water under controlled pH and temperature was used to prepare ZnO nanorods (see Panchakarla et al.). Zinc oxide nanoparticles were prepared also using sol–gel method starting from zinc acetate precursor (as per Zang et al.). Thin films were prepare from both nanorods and nanoparticles by electrophoretic deposition (EPD) in aqueous media (see Dogan et al., Wang et al., Lommens et al., Tang et al. and Besra et al.). To have a uniform microstructure in the deposited films, the aqueous suspension was stabilized using an anionic surfactant. The effect of voltage and pH on the rate of electrophoretic deposition from nano zinc oxide colloid was studied in detail. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Atomic force microscopy (AFM) and UV-Vis Spectroscopy were used to characterize Zno thin films after sintering.


2013 ◽  
Vol 829 ◽  
pp. 917-921
Author(s):  
Saber Ghannadi ◽  
Hossein Abdizadeh ◽  
Mohammad Reza Golobostanfard

Titania thin films were prepared by electrophoretic deposition at various deposition times (1, 5 and 10 min) in constant applied potential (5 V). For this purpose, modified titania sol was prepared as a colloidal suspension. The influence of deposition time on the thickness and optical properties of titania films was investigated. Scanning electron microscope images illustrate compact and homogeneous titania films deposited on FTO substrates. The results show that the film thickness increases with increasing the deposition time. It could be inferred from UV-Vis spectroscopy that increasing the thickness of deposited film causes higher absorbance at UV region. Also, increasing the deposition time from 1 to 5 min leads to increase in optical band gap of the deposited films.


2021 ◽  
Vol 274 ◽  
pp. 115484
Author(s):  
F. Sadeghi ◽  
B. Shayegh Boroujeny ◽  
V. Soleimanian ◽  
E. Akbari

2014 ◽  
Vol 2014 (30) ◽  
pp. 5152-5159 ◽  
Author(s):  
Mario Borlaf ◽  
María T. Colomer ◽  
Alicia de Andrés ◽  
Fátima Cabello ◽  
Rosalia Serna ◽  
...  

2017 ◽  
Vol 302 ◽  
pp. 126-132 ◽  
Author(s):  
E.G. Kalinina ◽  
E.Yu. Pikalova ◽  
A.A. Kolchugin ◽  
S.M. Pikalov ◽  
A.S. Kaigorodov

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