Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.actamat.2008.06.022
Title: Unexpected influence of substrate temperature on the properties of P-doped ZnO
Authors: Hu, G. 
Gong, H. 
Keywords: Growth temperature
p-Type
Phosphorous
TEM
ZnO
Issue Date: Oct-2008
Source: Hu, G., Gong, H. (2008-10). Unexpected influence of substrate temperature on the properties of P-doped ZnO. Acta Materialia 56 (18) : 5066-5070. ScholarBank@NUS Repository. https://doi.org/10.1016/j.actamat.2008.06.022
Abstract: The electrical conductivity of phosphorus-doped ZnO (P:ZnO) was found to change with sputter substrate temperature. Unexpectedly, n-type conductivity was obtained for samples deposited at substrate temperatures of 200, 250 and 300 °C, but p-type conductivity was achieved for samples deposited at room temperature (RT). The type of a ZnO sample was determined and cross-checked by using three different techniques: the Hall effect, the Seebeck effect and magnetic field-dependent Hall voltage measurements. The n-type samples had conductivities of 11-45 S cm-1 and the p-type sample possessed a conductivity of 0.74 S cm-1. Furthermore, significantly different activation energies were found for the n-type (10 meV) and p-type (134 meV) P:ZnO samples, which were in good agreement with the positions of the donor and acceptor levels in the band structure reported in the literature. SIMS profiling measurement revealed that the oxygen concentration in the P:ZnO film deposited at RT was clearly higher than those in the films deposited at higher substrate temperatures. The results and relevant mechanisms were discussed. It appears that the n-type or p-type conductivity of a P:ZnO sample was determined mainly by the dominance of the n-type defect donors or the P induced acceptors. © 2008 Acta Materialia Inc.
Source Title: Acta Materialia
URI: http://scholarbank.nus.edu.sg/handle/10635/86834
ISSN: 13596454
DOI: 10.1016/j.actamat.2008.06.022
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

11
checked on Feb 14, 2018

WEB OF SCIENCETM
Citations

11
checked on Jan 22, 2018

Page view(s)

16
checked on Feb 19, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.