期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 658, 期 -, 页码 435-439出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.10.067
关键词
Ca doped ZnO nanorods; Sol-gel process; Nonlinear phenomena; Photoinduced second order nonlinear optical effects
资金
- UGC-SERO, Hyderabad, India [FIP-TNMS039/001(TF)/PHYSICS/Ph.D/XII PLAN/2014-15]
- CeMIE-Sol project [207450/P26]
Calcium doped zinc oxide nanorods on ZnO seed layers were grown by hydrothermal method. Photoinduced bicolour laser treatment was done on the samples and the effective second order nonlinear coefficient (d(eff)) has been measured. The morphology of the samples was investigated by the field emission scanning electron microscope (FESEM) images. The structural parameters acquired from X-ray diffraction (XRD) patterns have been correlated with the measured d(eff). The results have revealed that 15 mol% Ca doped ZnO nanorod showed maximum d(eff) because of the Lorentz local field established along the length of the nanorod. The aspect ratio and stress play a significant role in enhancement of d(eff). The nonlinearity has been correlated with the absorption cross sections. (C) 2015 Elsevier B.V. All rights reserved.
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