Annealed Ce Doped ZnO Coated Fiber Optic Gas Sensor

2011 ◽  
Author(s):  
B. Renganathan ◽  
D. Sastikumar ◽  
G. Gobi ◽  
N. Rajeswari Yogamalar ◽  
A. Chandra Bose ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Fiber Optic ◽  
Coated Fiber ◽  
Doped Zno

Carbon nanotubes coated fiber optic ammonia gas sensor

2011 ◽  
Author(s):  
S. Manivannan ◽  
L. R. Shobin ◽  
A. M. Saranya ◽  
B. Renganathan ◽  
D. Sastikumar ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensor ◽  
Fiber Optic ◽  
Ammonia Gas ◽  
Coated Fiber

NANOCRYSTALLINE ALUMINUM DOPED ZINC OXIDE COATED FIBER OPTIC FOR ULTRAVIOLET DETECTION

2013 ◽  
Vol 22 (03) ◽  
pp. 1350037 ◽  
Author(s):  
A. R. A. RASHID ◽  
P. S. MENON ◽  
S. SHAARI
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Uv Light ◽  
Sol Gel ◽  
Hexagonal Wurtzite Structure ◽  
Zno Films ◽  
Coated Fiber ◽  
Aluminum Doped Zinc Oxide ◽  
Doped Zno

In this paper, we report the fabrication and characterization of an ultraviolet sensing by using Al -doped ZnO films coated on quartz slide and silica fiber optic. Undoped ZnO , 0.5, 1, 2 and 3 at.% of Al were prepared by sol–gel method with annealing temperature of 400°C for 1 h. The presence of spherical shaped nanoparticles and hexagonal (wurtzite) structure were detected for Al doped ZnO by using FESEM and XRD. The band gap values increased by adding Al due to the increment of carrier concentration. I–V curves reveal an ohmic line and improvement in electrical conductivity when the samples are illuminated by ultraviolet (UV) light with a wavelength of 365 nm. At 1 at.% of Al , the film have a larger increment in photocurrent response when illuminated with UV light compared to undoped ZnO and higher concentration (2 at.% and 3 at.%) of Al . For coated fiber optic, the fiber operates under leaky mode and the refractive index of ZnO is decreasing under UV radiation. There is a small drop in output intensity and increased abruptly which depends on the changes of ZnO refractive index. The thin films have a longer recovery time than response time.

Nanocrystalline cerium oxide coated fiber optic gas sensor

2014 ◽  
Vol 14 (3) ◽  
pp. 467-471 ◽  
Author(s):  
B. Renganathan ◽  
D. Sastikumar ◽  
A. Chandra Bose ◽  
R. Srinivasan ◽  
A.R. Ganesan
Keyword(s):  
Gas Sensor ◽  
Cerium Oxide ◽  
Fiber Optic ◽  
Coated Fiber

Al-Doped ZnO Coated Fiber Optic for Ultraviolet and Acetone Sensing

2013 ◽  
Vol 19 (5) ◽  
pp. 1306-1309
Author(s):  
S. Shaari ◽  
A. R. A. Rashid ◽  
P. S. Menon ◽  
N. Arshad
Keyword(s):  
Fiber Optic ◽  
Coated Fiber ◽  
Doped Zno

Nanocrystalline samarium oxide coated fiber optic gas sensor

2014 ◽  
Vol 186 ◽  
pp. 122-127 ◽  
Author(s):  
B. Renganathan ◽  
D. Sastikumar ◽  
R. Srinivasan ◽  
A.R. Ganesan
Keyword(s):  
Gas Sensor ◽  
Fiber Optic ◽  
Samarium Oxide ◽  
Coated Fiber

Fiber optic gas sensor with nanocrystalline ZnO

2014 ◽  
Vol 20 (1) ◽  
pp. 48-52 ◽  
Author(s):  
B. Renganathan ◽  
A.R. Ganesan
Keyword(s):  
Gas Sensor ◽  
Fiber Optic
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