Influence of oxygen gas pressure on phase, microstructure and electrical properties of sodium bismuth titanate thin films grown using pulsed laser deposition

2015 ◽  
Vol 579 ◽  
pp. 44-49 ◽  
Author(s):  
A.S. Daryapurkar ◽  
J.T. Kolte ◽  
P. Gopalan
2002 ◽  
Vol 728 ◽  
Author(s):  
Kenji Ebihara ◽  
Tamiko Ohshima ◽  
Tomoaki Ikegami ◽  
Raj K. Thareja

AbstractZinc Oxide (ZnO) thin films have been deposited on silicon (100), quartz glass, sapphire (0001), and glass substrates by pulsed laser deposition over a range of process conditions such as versus ambient oxygen gas pressure and substrate temperature. Photoluminescence measurements have been carried out to characterize ZnO thin films for optical device applications. We have also studied the influence of the process conditions on crystal structure and morphology of the grown films. Ultraviolet luminescence near the band gap at 3.25 eV was obtained from the optical pumped grown films. And ZnO thin films deposited on sapphire single crystal substrates exhibited strong stimulated emission around 3.12 eV with increasing pumping energy. ZnO thin films deposited at ambient oxygen gas pressure of 5 mTorr and a substrate temperature of 550 °C were predominantly c-axis oriented regardless of substrate material. The crystallite size of 22.7-49.8 nm was estimated using Scherrer's formula. AFM images of films grown on sapphire substrates display hexagonally shaped grains at various sizes.


2019 ◽  
Vol 682 ◽  
pp. 24-28 ◽  
Author(s):  
V.H. Martínez-Landeros ◽  
N. Hernandez-Como ◽  
G. Gutierrez-Heredia ◽  
M.A. Quevedo-Lopez ◽  
F.S. Aguirre-Tostado

2019 ◽  
Vol 45 (10) ◽  
pp. 13518-13522 ◽  
Author(s):  
Shan Jiao ◽  
Yi Zhang ◽  
Zhihua Duan ◽  
Tao Wang ◽  
Yanxue Tang ◽  
...  

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