scholarly journals Metal-to-insulator transition in anatase TiO2 thin films induced by growth rate modulation

2012 ◽  
Vol 101 (2) ◽  
pp. 022104 ◽  
Author(s):  
T. Tachikawa ◽  
M. Minohara ◽  
Y. Nakanishi ◽  
Y. Hikita ◽  
M. Yoshita ◽  
...  
Keyword(s):  
Thin Films ◽  
Growth Rate ◽  
Anatase Tio2 ◽  
Insulator Transition ◽  
Tio2 Thin Films ◽  
Rate Modulation ◽  
Metal To Insulator Transition

Metal-to-insulator transition near room temperature in graphene oxide and graphene oxide + TiO2 thin films

RSC Advances ◽  
2016 ◽  
Vol 6 (114) ◽  
pp. 112864-112869 ◽  
Author(s):  
G. H. Wegher ◽  
E. R. Viana ◽  
G. M. Ribeiro ◽  
J. F. Deus
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Titanium Oxide ◽  
Room Temperature ◽  
Insulator Transition ◽  
Tio2 Thin Films ◽  
Chemical Route ◽  
Metal To Insulator Transition

Thin films of graphene oxide and a composite of graphene oxide with titanium oxide were prepared via an alternative chemical route based on Hummer's method. Metal-to-Insulator Transition (MIT) were observed for GO (at 280 K) and for GO + TiO2 (at 260 K).

Investigation of the metal-to-insulator transition of N-doped VO2(M1) thin films

2021 ◽  
pp. 149661
Author(s):  
Simon Chouteau ◽  
Sabeur Mansouri ◽  
Mohamed Lemine Ould Ne Mohamedou ◽  
Jérémie Chaillou ◽  
Aminat Oyiza Suleiman ◽  
...  
Keyword(s):  
Thin Films ◽  
Insulator Transition ◽  
Metal To Insulator Transition

Femtosecond Z-scan measurement of third-order optical nonlinearities in anatase TiO2 thin films

2009 ◽  
Vol 282 (9) ◽  
pp. 1815-1818 ◽  
Author(s):  
Hua Long ◽  
Guang Yang ◽  
Aiping Chen ◽  
Yuhua Li ◽  
Peixiang Lu
Keyword(s):  
Thin Films ◽  
Anatase Tio2 ◽  
Optical Nonlinearities ◽  
Tio2 Thin Films ◽  
Third Order

Influence of metal plasma ion implantation on photo-sensitivity of anatase TiO2 thin films

2006 ◽  
Vol 515 (3) ◽  
pp. 1047-1052 ◽  
Author(s):  
Da-Yung Wang ◽  
Hsiao-Cheng Lin ◽  
Chung-Chih Yen
Keyword(s):  
Thin Films ◽  
Ion Implantation ◽  
Anatase Tio2 ◽  
Tio2 Thin Films ◽  
Metal Plasma

scholarly journals Microstructure Evolution of Ag/TiO2 Thin Film

2021 ◽  
Vol 7 (1) ◽  
pp. 14
Author(s):  
Dewi Suriyani Che Halin ◽  
Kamrosni Abdul Razak ◽  
Mohd Arif Anuar Mohd Salleh ◽  
Mohd Izrul Izwan Ramli ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Growth Rate ◽  
Synchrotron Radiation ◽  
Tio2 Thin Film ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Contact Mode ◽  
X Ray ◽  
Radiation Imaging

Ag/TiO2 thin films were prepared using the sol-gel spin coating method. The microstructural growth behaviors of the prepared Ag/TiO2 thin films were elucidated using real-time synchrotron radiation imaging, its structure was determined using grazing incidence X-ray diffraction (GIXRD), its morphology was imaged using the field emission scanning electron microscopy (FESEM), and its surface topography was examined using the atomic force microscope (AFM) in contact mode. The cubical shape was detected and identified as Ag, while the anatase, TiO2 thin film resembled a porous ring-like structure. It was found that each ring that coalesced and formed channels occurred at a low annealing temperature of 280 °C. The energy dispersive X-ray (EDX) result revealed a small amount of Ag presence in the Ag/TiO2 thin films. From the in-situ synchrotron radiation imaging, it was observed that as the annealing time increased, the growth of Ag/TiO2 also increased in terms of area and the number of junctions. The growth rate of Ag/TiO2 at 600 s was 47.26 µm2/s, and after 1200 s it decreased to 11.50 µm2/s and 11.55 µm2/s at 1800 s. Prolonged annealing will further decrease the growth rate to 5.94 µm2/s, 4.12 µm2/s and 4.86 µm2/s at 2400 s, 3000 s and 3600 s, respectively.

Epitaxy of Porous and Photocatalytically Active TiO2 Films at 50°C

2011 ◽  
Vol 64 (9) ◽  
pp. 1235 ◽  
Author(s):  
Gregory K. L. Goh ◽  
Kelvin Y. S. Chan ◽  
Gao S. Huang ◽  
Qui L. Tay
Keyword(s):  
Thin Films ◽  
Methylene Blue ◽  
Liquid Phase ◽  
Anatase Tio2 ◽  
Blue Dye ◽  
Tio2 Films ◽  
Methylene Blue Dye ◽  
Liquid Phase Deposition ◽  
Grown Film ◽  
Tio2 Thin Films

Epitaxial anatase TiO2 thin films were grown on (001) oriented SrTiO3 single crystal substrates by liquid phase deposition at 50°C. The film consisted of nanosized crystallites and exhibited a significant void fraction of 31 %. This contributed to the cracking of thicker films due to the generation of capillary stresses in the nanosized pores during drying. This porosity also comes in useful during the photodegradation of a methylene blue dye by an as-grown film.

scholarly journals Electronic properties of antimony-doped anatase TiO2 thin films prepared by aerosol assisted chemical vapour deposition

2017 ◽  
Vol 5 (37) ◽  
pp. 9694-9701 ◽  
Author(s):  
Davinder S. Bhachu ◽  
Russell G. Egdell ◽  
Gopinathan Sankar ◽  
Claire J. Carmalt ◽  
Ivan P. Parkin
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Anatase Tio2 ◽  
Spectroscopic Techniques ◽  
Tio2 Thin Films

The electronic properties of antimony-doped anatase (TiO2) thin films deposited via aerosol assisted chemical vapour deposition were investigated by a range of spectroscopic techniques.

scholarly journals Enhanced photocatalytic bacterial inactivation of atomic-layer deposited anatase-TiO2 thin films on rutile-TiO2 nanotubes

2020 ◽  
Vol 19 (3) ◽  
pp. 399-405
Author(s):  
Joel Molina-Reyes ◽  
Alejandra Romero-Morán ◽  
José L. Sánchez-Salas
Keyword(s):  
Thin Films ◽  
Photocatalytic Activity ◽  
Tio2 Nanotubes ◽  
Considerable Increase ◽  
Atomic Layer ◽  
Surface Modifications ◽  
Anatase Tio2 ◽  
Bacterial Inactivation ◽  
Tio2 Thin Films ◽  
Experimental Conditions

Experimental conditions to fabricate rutile-TiO2 nanotubes coated with a conformal anatase-TiO2 thin layer using ALD were reported. A considerable increase in the photocatalytic activity associated with these surface modifications was also observed.

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