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Structural, electrical, and optical characteristics of lithium-implanted ZnO thin films

DSpace at IIT Bombay

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Title Structural, electrical, and optical characteristics of lithium-implanted ZnO thin films
 
Creator NAGAR, S
GUPTA, SK
CHAKRABARTI, S
 
Subject Zinc oxide
Pulsed laser deposition
X-ray diffraction
Scanning electron microscopy
Hall measurements
Photoluminescence
P-TYPE ZNO
PULSED-LASER DEPOSITION
ZINC-OXIDE
DOPANT
VAPOR
 
Description Lithium ions were implanted at low energies (40 and 50 key) and at a dosage of 5 x 10(13) ions/cm(2) over < 002 > ZnO thin films that had been deposited by pulsed laser deposition. The implanted samples were subsequently treated by rapid thermal annealing at 750 degrees C. Scanning electron microscopy images revealed improved grain formation for the implanted samples. However, a presence of microvoids was also observed in these samples; the amount of microvoids tended to increase on high-temperature annealing. Dominant donor-bound-exciton peaks is observed in all the samples along with some defect related to the exciton bound peaks although with a lesser intensity compared to as-deposited sample. (C) 2012 Elsevier Ltd. All rights reserved.
 
Publisher ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
 
Date 2014-10-15T14:28:34Z
2014-10-15T14:28:34Z
2013
 
Type Article
 
Identifier SUPERLATTICES AND MICROSTRUCTURES, 53164-172
http://dx.doi.org/10.1016/j.spmi.2012.10.008
http://dspace.library.iitb.ac.in/jspui/handle/100/15103
 
Language en