Journal
RESULTS IN PHYSICS
Volume 7, Issue -, Pages 1883-1886Publisher
ELSEVIER
DOI: 10.1016/j.rinp.2017.05.023
Keywords
Defects; Impurities; Point defects; Electron spin resonance; Nanomaterials
Funding
- Ministry of Higher Education Malaysia [5527051]
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Mechanically induced defect in high energy milled Cd0.3Zn0.7Se nanocrystals was investigated using electron spin resonance (ESR). The broad ESR component with g similar to 2 was attributed to paramagnetic defects present in the milled powder. The spin density of the center increases linearly from similar to 1 x 10(20) spins/g to 7 x 10(20) spins/g with milling time. The most probable induced centers during mechanical milling were (V-Zn-Z(ni)), V-Zn. The best simulations were produced for relative spin concentrations of three paramagnetic defects with ratio 3:6:10 for 5 h and 10 h milled samples. (C) 2017 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license
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