Heat treatment effects on the surface morphology and optical properties of ZnO nanostructures

2010 ◽  
Vol 7 (9) ◽  
pp. 2286-2289 ◽  
Author(s):  
M. Zainizan Sahdan ◽  
M. Hafiz Mamat ◽  
M. Salina ◽  
Zuraida Khusaimi ◽  
Uzer M. Noor ◽  
...  
2010 ◽  
Vol 7 (9) ◽  
pp. n/a-n/a
Author(s):  
M. Zainizan Sahdan ◽  
M. Hafiz Mamat ◽  
M. Salina ◽  
Zuraida Khusaimi ◽  
Uzer M. Noor ◽  
...  

2002 ◽  
Vol 92 (10) ◽  
pp. 5761-5765 ◽  
Author(s):  
Jung-Kyung Lee ◽  
Hwa-Min Kim ◽  
Seoung-Hwan Park ◽  
Jong-Jae Kim ◽  
Byung-Roh Rhee ◽  
...  

2018 ◽  
Vol 7 (3.11) ◽  
pp. 6
Author(s):  
Aimi Bazilah ◽  
Zaiki Awang ◽  
Shafinaz Sobihana Shariffudin ◽  
Sukreen Hana Herman

Zinc oxide (ZnO) nanostructures were synthesized via thermal chemical deposition (TCVD) method and applied as the sensing membrane of an extended-gate field effect transistor (EGFET) pH sensor.  The ZnO nanostructures undergone a post-deposition heat treatment with the temperature ranging from 200-500 °C for 15 min in air ambient. The influence of the post-deposition heat treatment on the physical and pH sensing characteristics was investigated. The FESEM images showed that the surface morphology of the samples were dependent on post-annealing treatment. The as-deposited sample showed the biggest grain size and non-uniformed structures. Applying the post-annealing heat treatment caused the surface morphology to become denser and uniform. The most ideal temperature for the heat treatment for EGFET pH sensor application was found at 300 °C resulting in a pH sensitivity of 48.2 mV/pH with 0.9646 linearity.   


2012 ◽  
Vol 2 (1) ◽  
pp. 83-84
Author(s):  
Pavan Naik ◽  
◽  
Dr. R B. lohani Dr. R B. lohani

2005 ◽  
Vol 480-481 ◽  
pp. 287-292 ◽  
Author(s):  
S.E. Paje ◽  
F. Teran ◽  
J.M. Riveiro ◽  
J. Llopis ◽  
M.A. García ◽  
...  

In this research we study optical absorption and morphology of silver films prepared with a sputtering method. Silver granular films are obtained on a glass substrate for films with thickness smaller than about 60 Å. Superficial silver clusters of around 100 nm in diameter are clearly seen in the atomic force micrographs. The absorption of these samples are characterized by plasmon excitation in the 450-650 nm spectral range, which differs from the known excitation of silver nanoparticles fabricated by different techniques. The optical absorption of silver granular films depend on sputtering conditions like substrate temperature or deposition rate and correlates with the surface morphology.


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