Influence of annealing on the optical properties of monoclinic vanadium oxide VO2 prepared in nanoscale by hydrothermal technique

2019 ◽  
Vol 114 ◽  
pp. 113610 ◽  
Author(s):  
H.H. Afify ◽  
S.A. Hassan ◽  
M. Obaida ◽  
A. Abouelsayed
Author(s):  
W. B. Cai ◽  
F. Wang ◽  
Y. P. Miao ◽  
J. Wei ◽  
K. L. Zhang

Tungsten-doped vanadium oxide has been proved to decrease the transition temperature, which enables vanadium oxide film to be more promising. Besides, the nano-structure can improve the properties of the film when compared with the as-deposited film. In this letter, a nano-structure tungsten-doped vanadium oxide film is proposed. Tungsten-doped vanadium oxide film was deposited on the Si (400) substrate by DC magnetron sputtering. The doping level was controlled by adjusting the sputtering time. Then the as-deposited film was annealed to form a nano-structure film at the temperature of 500 °C for 1 h in high vacuum. The morphology and crystalline structure of such films were characterized by AFM and XRD, respectively. Optical properties of the films were tested by FTIR, mainly comparing the infrared transmission before and after annealing.


2020 ◽  
Vol 46 (2) ◽  
pp. 146-154 ◽  
Author(s):  
Pavan Kumar Pothuganti ◽  
Ashok Bhogi ◽  
Muralidhara Reddy Kalimi ◽  
Padamasuvarna Reniguntla

2015 ◽  
Vol 69 (2) ◽  
pp. 87-93
Author(s):  
M. Ayat ◽  
N. Gabouze ◽  
S. Sam ◽  
L. Boarino ◽  
R. Boukherroub

2022 ◽  
Vol 890 ◽  
pp. 161941
Author(s):  
Zhenfei Luo ◽  
Qingwei Zhang ◽  
Fei Zhang ◽  
Yaowei Wei ◽  
Zhen Wang ◽  
...  

2012 ◽  
Vol 47 (6) ◽  
pp. 1368-1373 ◽  
Author(s):  
Navonil Bose ◽  
Mousumi Basu ◽  
Sampad Mukherjee

2000 ◽  
Vol 658 ◽  
Author(s):  
J. Katana Ngala ◽  
Peter Y. Zavalij ◽  
M. Stanley Whittingham

ABSTRACTA pure form of the compound [(CH3)4N]0.2Mn0.06V2O5+δ•0.2H2O has been synthesized by the hydrothermal technique. A manganese richer compound, [(CH3)4N]0.18Mn0.1V2O5+δ•0.35H2O, has also been synthesized. By comparison to [(CH3)4N]0.17Fe0.1V2O5+δ•0.17H2O, the structure of these compounds consists of double sheets of vanadium oxide with tetramethyl ammonium ions in the interlayer spaces. Both compounds display reversible lithium intercalation with sharp end points. The lithiation capacity is lowered by the increase in manganese content.


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