Electrical characterization of Cr Schottky contacts on undoped and Ni-doped p-ZnO films grown by pulsed laser deposition on Si (100) substrates

2013 ◽  
Vol 104 ◽  
pp. 95-99 ◽  
Author(s):  
M. Stamataki ◽  
D. Tsamakis ◽  
J.P. Xanthakis ◽  
H.A. Ali ◽  
S. Esmaili-Sardari ◽  
...  
2009 ◽  
Vol 67 ◽  
pp. 127-130 ◽  
Author(s):  
Majumdar Sayanee ◽  
Banerji Pallab

In the present study we have used urea as the source for doping nitrogen in ZnO since the most successful acceptor type dopant is the group V element like nitrogen. The nitrogen doped ZnO films have been deposited on glass substrates using Pulsed Laser Deposition technique using 248 nm KrF laser at energy 300 mJ by varying the number of laser pulses with a repetition rate of 10 pulse/sec in vacuum (10-6 mbar) at a constant temperature of 300 °C. The XRD pattern confirms the formation of wurtzite structure of ZnO, which is polycrystalline in nature. We have also performed UV absorption spectroscopy and the band gap is found to be 3.4 eV. Resistivity of the film increases with the increase of thickness for the undoped ZnO samples where the carrier concentrations are found to be of the order of 1017 cm-3. The mobility of the as-grown film is found to be 24.9 cm2/V-s. After doping with nitrogen the carrier concentration drops to the order of 1015 cm-3 and the mobility becomes 1.5 cm2/V-s. The mobility slightly varies with thickness. The resistivity increases to 1.3 KΩ-cm and the film shows p-type behavior. The results are explained on the basis of the available theory.


2010 ◽  
Author(s):  
K. Rodrigo ◽  
S. Heiroth ◽  
M. Lundberg ◽  
N. Bonanos ◽  
K. Mohan Kant ◽  
...  

2015 ◽  
Vol 70 (1) ◽  
pp. 10102
Author(s):  
Simeon Simeonov ◽  
Silvia Bakalova ◽  
Anna Szekeres ◽  
Ivaylo Minkov ◽  
Gabriel Socol ◽  
...  

2005 ◽  
Vol 244 (1-4) ◽  
pp. 377-380 ◽  
Author(s):  
Z.Q. Chen ◽  
S. Yamamoto ◽  
A. Kawasuso ◽  
Y. Xu ◽  
T. Sekiguchi

2013 ◽  
Vol 860-863 ◽  
pp. 807-811
Author(s):  
Wen De Liu ◽  
Zhen Feng Kang ◽  
Qiang Li ◽  
Ping Ping Zheng ◽  
Tie Zhu Ding

This study is focused on the elaboration of 8 mol.% yttria stabilized zirconia (YSZ) thin films onto porous supporting NiOYSZ anode substrates using pulsed laser deposition (PLD),and their microstructural and electrical characterizations. Better crystallinity and grain connectivity is observed increasing the deposition temperature until best values are obtained at 500°C. The greater relative conductivity enhancement is found at 300-500°C. The observed an increased conductivity at lower temperatures may be caused by a combination of nanoscaled effect of the YSZ thin film and interfacial effects between YSZ thin film and substrate.


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