Fabrication and property of titanium dioxide thin film using sol–gel method and CO2 laser annealing

2012 ◽  
Vol 7 (8) ◽  
pp. 701 ◽  
Author(s):  
C.-K. Chung ◽  
S.L. Lin ◽  
K.P. Chuang ◽  
S.Y. Cheng ◽  
K.Y. Shei
2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Yu-Chang Liu ◽  
Yun-Fang Lu ◽  
Yz-Zhen Zeng ◽  
Chi-Hung Liao ◽  
Jen-Chieh Chung ◽  
...  

Titanium dioxide (TiO2) paste was prepared by sol-gel and hydrothermal method with various precursors. Nanostructured mesoporous TiO2thin-film back electrode was fabricated from the nanoparticle colloidal paste, and its performance was compared with that made of commercial P25 TiO2. The best performance was demonstrated by the DSSC having a 16 μm-thick TTIP-TiO2back electrode, which gave a solar energy conversion efficiency of 6.03%. The ability of stong adhesion on ITO conducting glass substrate and the high surface area are considered important characteristics of TiO2thin film. The results show that a thin film with good adhesion can be made from the prepared colloidal paste as a result of alleviating the possibility of electron transfer loss. One can control the colloidal particle size from sol-gel method. Therefore, by optimizing the preparation conditions, TiO2paste with nanoparticle and narrow diameter distribution was obtained.


2014 ◽  
Vol 925 ◽  
pp. 278-281 ◽  
Author(s):  
Sharipah Nadzirah ◽  
Uda Hashim ◽  
N. Malihah

Titanium dioxide (TiO2) thin films based interdigitated electrodes (IDEs) have been synthesized using sol-gel method with hydrochloric acid (HCl) as catalyst. The prepared TiO2 solution has been deposited onto silicon dioxide (SiO2) substrates via spin-coating technique. Film was annealed at 500 °C and aluminium (Al) IDEs have been fabricated. Finally the X-ray diffraction (XRD) shows high intensity of both anatase and rutile peaks exist on 10 nm TiO2 thin film. Average crystallite size of the nanoparticles is seen to be 25 nm. UvVisible spectroscopic (UvVis) technique was used for the transmittance spectra characterization of the sample.


2008 ◽  
Vol 368-372 ◽  
pp. 1465-1467
Author(s):  
Chien Jung Huang ◽  
Kuo Chien Liao ◽  
Yan Kuin Su

Titanium dioxide (TiO2) thin film on glass substrate is fabricated by sol-gel method. The TiO2 film is sintered at various temperatures for investigation on the refraction index and crystallization characteristic. The lower refractive index of the TiO2 thin film is 1.89 when the sintering is performed at the low temperature of 200°C and the thickness is 448 nm. However, the higher refractive index of 2.55 and chemical stability of the TiO2 film in rutile phase are obtained via sintering temperature at 700°C.


Author(s):  
Dong XU ◽  
Qi SONG ◽  
Ke ZHANG ◽  
Hong-Xing XU ◽  
Yong-Tao YANG ◽  
...  
Keyword(s):  
Sol Gel ◽  

2013 ◽  
Vol 62 (8) ◽  
pp. 1176-1182 ◽  
Author(s):  
Jong Hoon Lee ◽  
Chang Hoi Kim ◽  
Hong Seung Kim ◽  
Jae Hoon Park ◽  
Jin Hwa Ryu ◽  
...  

2018 ◽  
Vol 226 ◽  
pp. 03014
Author(s):  
Vitaly A. Tarala ◽  
Alexander A. Dolgalev ◽  
Alexander A. Kravtsov ◽  
Irina S. Chikulina ◽  
Boris V. Bukhalov

Within the framework of the study, TiO2 coatings were obtained by sol-gel method via dip-coating. For the films obtaining, manual drawing the substrate from the solution at a relatively high rate of 30 mm / min and automated drawing from the solution at low drawing rates (from 1 to 10 mm / min) were used. The morphology of coatings has been studied by scanning electron microscopy. The influence of the mode and the rate of drawing of the substrate from the solution on the films morphology was demonstrated. Analysis of the data showed, that the surface morphology of the coatings obtained at lower drawing rates by an automated method is much more homogeneous - the titanium dioxide films completely repeats the topography of the substrate surface, there are practically no fissures. Qualitative coatings of titanium dioxide, completely replicating the surface relief of the substrate, can be obtained by this method. Selection of the substrate drawing rate allows reducing the influence of the substrate topography and avoiding the appearance of crystallization centers, and as a consequence, the appearance of defects in the morphology of coatings, such as fissures or microparticles.


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