Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 99, Issue -, Pages 288-291Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2012.09.001
Keywords
Nanostructures; Optical properties; Inorganic compounds; Optical materials; Luminescence
Categories
Funding
- University Grants Commission (UGC), New Delhi, India
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The Y2O3 phosphor powder codoped with Nd3+:Yb3+ ions have been synthesized through optimized combustion route. Crystalline structures of the prepared samples have been investigated by powder X-ray diffraction technique. Efficient upconversion emission in the green region upon 980 nm NIR CW diode laser excitation has been reported. The maximal enhancement in the intensity of the green upconversion emission band has been observed on codoping with Zn2+ ions in the Nd3+:Yb(3+)codoped sample. The processes responsible for such an enhancement in the green upconversion emission band which can be used for the localization and diagnosis of cancer has been explained in detail. (C) 2012 Elsevier B.V. All rights reserved.
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