A. Siva Sesha Reddy
Acharya Nagarjuna University
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Publication
Featured researches published by A. Siva Sesha Reddy.
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2015
B. Suresh; M. Srinivasa Reddy; A. Siva Sesha Reddy; Y. Gandhi; V. Ravi Kumar; N. Veeraiah
Glasses of the composition (30-x)PbO-5Bi2O3-65SiO2: xNiO (with x ranging from 0 to 1.0 mol%) were synthesized. A variety of spectroscopic studies, viz., IR, Raman optical absorption and luminescence properties of these glasses have been carried out as a function of NiO concentration. The analysis of results of all these studies has indicated that the nickel ions occupy both octahedral and tetrahedral positions. However, with the increase of NiO concentration the octahedral occupancy of Ni(2+) ions prevailed over the tetrahedral ions. The luminescence spectra of these glasses have exhibited a broad NIR emission band in region 1100-1500 nm. This band is identified as being due to (3)T2(3F)→(3)A2(3F) octahedral transition of Ni(2+) ions. The luminescence efficiency and cross section have been found to be the highest for the glass containing the highest concentration of NiO. The reasons for such high luminescence efficiency have been discussed in the light of structural variations taking place in the host glass network.
Ceramics International | 2016
A. Siva Sesha Reddy; M.G. Brik; J. Suresh Kumar; M.P.F. Graça; G. Naga Raju; V. Ravi Kumar; M. Piasecki; N. Veeraiah
Journal of Luminescence | 2016
B. Suresh; M. Srinivasa Reddy; J. Ashok; A. Siva Sesha Reddy; P. Venkateswara Rao; V. Ravi Kumar; N. Veeraiah
Journal of the American Ceramic Society | 2017
A. Siva Sesha Reddy; A. Ingram; M.G. Brik; M. Kostrzewa; P. Bragiel; V. Ravi Kumar; N. Veeraiah
Journal of Materials Science: Materials in Electronics | 2018
K. Naresh Kumar; M. Kostrzewa; A. Ingram; B. Suresh; A. Siva Sesha Reddy; Y. Gandhi; M. Piasecki; N. Veeraiah
Optical Materials | 2018
A. Siva Sesha Reddy; J. Jedryka; K. Ozga; V. Ravi Kumar; N. Purnachand; I.V. Kityk; N. Veeraiah
Journal of Materials Science: Materials in Electronics | 2017
A. Siva Sesha Reddy; I.V. Kityk; V. Ravi Kumar; J. Jedryka; K. Ozga; N. Venkatramaiah; N. Veeraiah
Journal of Alloys and Compounds | 2017
A. Subba Rao; I.V. Kityk; J. Ashok; V. Ravi Kumar; K.J. Plucinski; A. Siva Sesha Reddy; K. Naresh Kumar; N. Veeraiah
Journal of Alloys and Compounds | 2019
Vishwa Prasad; Luka Pavić; Andrea Moguš-Milanković; A. Siva Sesha Reddy; Y. Gandhi; V.V. Ravi Kanth Kumar; G. Naga Raju; N. Veeraiah
Optical Materials | 2018
P. Sudhakar; A. Siva Sesha Reddy; Ya. Zhydachevskyy; A. Suchocki; M.G. Brik; V.V. Ravi Kanth Kumar; M. Piasecki; N. Veeraiah
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