Publication activity: 

• Scientific monographs: 1
• Publications in scientific journals (scopus): 43
• Contributed lectures at conferences: 15
• Citations (SCI): 850 +
• Other types of publications: 1

The most significant publications:

 Scopus

2022

• Naveen Kumar, Rajesh Dagupati, Jiseok Lim, Jungwook Choi,  Bright red luminescence from Eu³⁺-activated noncytotoxic SnO₂ quantum dots for latent fingerprint detection, Ceramics International, 48 (2022) 17738-17748, DOI: 10.1016/j.ceramint.2022.03.044.

 2021

• Rajesh Dagupati, Marek Liška, Alberto López-Grande and Francisco Muñoz, The structure of barium phosphate glasses and its influence on their thermodynamic stability and viscous flow, J. Materials chemistry and Physics, 258 (2021) 123941, DOI: 10.1016/ j.matchemphys.2020. 123941.
• Rajesh Dagupati, Róbert Klement, Dušan Galusek, Er³⁺/Yb³⁺ co-doped oxyfluoro tellurite glasses: Analysis of optical temperature sensing based on up-conversion luminescence, Int J Appl Glass Sci. 00 (2021) 1–10, DOI: 10.1111/ijag.16011.
• Rajesh Dagupati, Robert Klement, Ramaraghavulu Rajavaram, José J. Velázquez, and Dušan Galusek, In Situ Synthesis of β-Na₅Y_1.5F₆: Er³⁺ Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and their Spectral Conversion and Optical Thermometry Analysis, Molecules, 26 (2021) 6901. DOI: 10.3390/molecules26226901.              

2020

• Branislav Hruška, Rajesh Dagupati, Mária Chromčíková, Aleksandra Nowicka, Jan Macháček, Marek Liška, Francisco Munoz, Thermodynamic model and Raman spectra of MgO–P2O5 glasses, Thermal Analysis and Calorimetry, Doi.org/10.1007/s10973-020-10033-1
• Branislav Hruška, Rajesh Dagupati, Mária Chromčíková, Aleksandra Nowicka, Jaroslava Michálková, Jacob A. Peterson, Marek Liška and Francisco Munoz, Structure and Raman spectra of binary barium phosphate glasses, J. Thermal Analysis and Calorimetry, Doi.org/10.1007/s10973-020-09328-0.  

   2019

• Rajesh, and A.S.S. de Camargo, Nd³⁺ doped new oxyfluoro tellurite glasses and glass ceramics containing NaYF₄ nano crystals − 1.06 µm emission analysis, J. Lumin., 207 (2019) 469-476, DOI: 10.1016/j.jlumin.2018.11.058.

2018

• Rajesh, Pr³⁺ doped new TZYN glasses and glass-ceramics containing NaYF₄ nanocrystals: Luminescence analysis for visible and NIR applications, J. Optmat., 86 (2018) 178-184,DOI: 10.1016/j.optmat.2018.10.004

  2017

• Rajesh, M. Reza Dousti, Raja J. Amjad , A.S.S. de Camargo, Enhancement of down- and upconversion intensities in Er³⁺/Yb³⁺ co-doped oxyfluoro tellurite glasses induced by Ag species and nanoparticles, J. Lumin., 192 (2017) 250-255, DOI: 10.1016/j.jlumin.2017.06.059.

• Rajesh, Raja J. Amjad, M. Reza Dousti, A.S.S. de Camargo, Enhanced VIS and NIR emissions of Pr³⁺ ions in TZYN glasses containing silver ions and nanoparticles” J. Alloys and Compounds, 695 (2017) 607-612, DOI: 10.1016/j.jallcom.2016.11.058.

  2016

• Rajesh, M. Reza Dousti, Raja J. Amjad, A.S.S. de Camargo, Quantum cutting and up-conversion investigations in Pr³⁺/Yb³⁺ co-doped oxyfluoro- tellurite glasses, J. Non-Cryst. Solids, 450 (2016) 149–155, DOI: 10.1016/j.jnoncrysol.2016.08.009.

  2015

• Rajesh, K. Brahmachary, Y.C. Ratnakaram, N. Kiran, A.P. Baker, W. Guigen, Energy transfer  based emission analysis of Dy³⁺/Eu³⁺ co-doped ZANP glasses for white LED applications, J. Alloy. Comp., 646 (2015) 1096-1103, DOI: 10.1016/j.jallcom.2015.05.138.

• Seshadri, M. Radha, D. Rajesh, L.C. Barbosa, C.M.B. Cordeiro, Y.C. Ratnakaram, Effect of ZnO on spectroscopic properties of Sm³⁺ doped zinc phosphate glasses, Physica B, 459 (2015) 79-87, DOI: 10.1016/j.physb.2014.11.016.

• Babu, V. Reddy Prasad, D. Rajesh and Y.C. Ratnakaram, Luminescence properties of Dy³⁺ doped different fluoro-phosphate glasses for solid state lighting applications, J. Mol. Struct., 1080 (2015) 153-161, DOI: 10.1016/j.molstruc.2014.09.080.

• Brahmachary, D. Rajesh and Y.C. Ratnakaram, Luminescence properties of Dy³⁺-doped zinc- aluminium-sodium-phosphate (ZANP) glasses for yellowish white light applications, Optik, 126 (2015) 4050–4055, DOI: 10.1016/j.ijleo.2015.08.001.

• Reddy Prasad, S. Babu, D. Rajesh, Y.C. Ratnakaram, Optical investigations of Sm³⁺ doped lead free zinc phosphate glasses, Physics and Chemistry of Glasses: European Journal of Glass Science and Technology, 56 (2015) 159-168, DOI: 10.13036/17533562.56.4.159.

• Brahmachary, D. Rajesh and Y.C. Ratnakaram, Radiative properties and Luminescence spectra of Sm³⁺ ion in zinc-alumino-sodium-phosphate (ZANP) glasses, J. Lumin., 161 (2015) 202–208, DOI: 10.1016/j.jlumin.2015.01.016.

  2014

• Rajesh, M. Dhamodhara Naidu and Y.C. Ratnakaram, PbMoO4:Eu³⁺ red phosphor material for potential applications in white LEDs, Indian Journal of Physics, 88 (12) (2014) 1291-1297, DOI:10.1007/s12648-014-0578-3.

• Dhamodhara Naidu, D. Rajesh and Y.C. Ratnakaram, Kinetics of Fluorescence Properties of Eu³⁺ ion in strontium-aluminium-bismuth-borate glasses”, J. Rare Earths, 32 (2014) 1141-1148, DOI: 10.1016/S1002-0721(14)60195-2.

• Balakrishna, Rajesh and Y.C. Ratnakaram, Synthesis and Photoluminescence properties of NaPbB₅O₉:Dy³⁺ phosphor material for white light applications, Physics and Chemistry of Solids, 75 (2014) 1210-1216, DOI: 10.1016/j.physb.2014.05.052.

• Brahmachary, D. Rajesh, S. Babu and Y.C. Ratnakaram, Investigations on spectroscopic properties of Pr³⁺ and Nd³⁺ doped zinc-alumino-sodium-phosphate (ZANP) glasses” J. Mol. Struct., 1064 (2014) 6-14, DOI: 10.1016/j.molstruc.2014.01.056.

• Babu, A. Balakrishna, D. Rajesh and Y.C. Ratnakaram, Investigations on luminescence performance of Sm³⁺ ions activated in multi-component fluoro-phosphate glasses, Spectrochimica acta part A, 122 (2014) 369-348, DOI: 10.1016/j.saa.2013.11.102.

• Babu, A. Balakrishna, D. Rajesh, and Y.C. Ratnakaram, Dy³⁺ doped oxy-fluoride phosphate glasses for laser materials: A photoluminescence study, International Journal of ChemTech Research, 6 (3) (2014) 3726-3729, ISSN: 09744290.

• Rajesh, M. Dhamodhara Naidu and Y.C. Ratnakaram, Synthesis and Photoluminescence properties of NaPbB5O9:Dy3+ phosphor material for white light applications, Physics and Chemistry of Solids, 75 (2014) 1210-1216, DOI: 10.1016/j.jpcs.2014.05.006.

• Balakrishna, D. Rajesh and Y. C. Ratnakaram, Photoluminescence properties of Ho3+ ion in lithium-fluoroborate glass containing different modifier oxides, AIP Conference Proceedings, 1591 (2014) 714-716, DOI: 10.1063/1.4872729.

• Rajesh and Y. C. Ratnakaram, Photoluminescence properties of NaPbB5O9:Dy³⁺ new material for white light applications” AIP Conference Proceedings, 1591 (2014) 1672-1673, DOI: 10.1063/1.4873072.

• Brahmachary, D. Rajesh, A. Balakrishna and Y.C. Ratnakaram, Radiative properties and energy transfer mechanism of Sm3+ ion in zinc-alumino-sodium-phosphate (ZANP) glasses, International Journal of ChemTech Research, 6 (3) (2014) 1705-1707, ISSN: 09744290.

      2013  

• C. Ratnakaram, A. Balakrishna and D. Rajesh, Influence of modifier oxides on optical properties of Er³⁺ doped lithium fluoroborate Glass, J. Phy. Chem. Glass., 54(5) (2013) 216- 222, ISSN: 00319090.

• Balakrishna, D. Rajesh and Y.C. Ratnakaram, Structural and optical properties of Nd³⁺ in lithium fluoro-borate glass with relevant modifier oxides”, Opt. Mater., 35 (2013) 2670-2676, DOI: 10.1016/j.optmat.2013.08.004.

• Rajesh, Y.C. Ratnakaram and A. Balakrishna, Er³⁺-doped strontium lithium bismuth borate glasses for broadband 1.5 μm emission-structural and optical properties, J. Alloy. Comp., 563 (2013) 22-27, DOI: 10.1016/j.jallcom.2013.02.055.

• V. Sasi kumar, D. Rajesh, A. Balakrishna and Y.C. Ratnakaram, Optical absorption and photoluminescence properties of Dy3+ doped heavy metal borate glasses–effect of modifier oxides, J. Mole. Struc., 1041 (2013) 100-105.

• V. Sasi kumar, D. Rajesh, A. Balakrishna and Y.C. Ratnakaram, Thermal and Optical  properties of Nd³⁺ doped lead zinc borate glasses–influence of alkali metal ions, Physica B, 415 (2013) 67-71, DOI: 10.1016/j.physb.2013.02.004.

• Rajesh, A. Balakrishna and Y.C. Ratnakaram, Er³⁺-doped strontium-lithium-bismuth-borate glasses for broad band 1.5 μm emission-optical properties, AIP Conference Proceedings, 1512 (2013) 550, DOI: 10.1063/1.4791155.

2012

• Rajesh, Y.C. Ratnakaram and A. Balakrishna, Luminescence properties of Sm³⁺ impurities in  strontium lithium bismuth borate glasses, AIP Conference Proceedings, 1447 (2012) 581, DOI:10.1063/1.4710137.
• Rajesh, M. Seshadri, A. Balakrishna and Y.C. Ratnakaram, Luminescence structural and             dielectric properties of Sm³⁺ impurities in strontium lithium bismuth borate glasses, Opt. Mater., 35 (2012) 108-116, DOI: 10.1016/j.optmat.2012.07.011.

• C. Ratnakaram, A. Balakrishna, D. Rajesh and M. Seshadri, Influence of modifier oxides on  spectroscopic properties of Sm³⁺ doped lithium fluoborate glasses, J. Molec. Stru., 1028 (2012) 141-147, DOI: 10.1016/j.molstruc.2012.05.071.

• Rajesh, A. Balakrishna and Y.C. Ratnakaram, Spectroscopic investigations on Pr³⁺ and Nd³⁺ doped strontium lithium bismuth borate glasses, Spectrochimica acta part A, 97 (2012) 963- 974, DOI: 10.1016/j.saa.2012.07.100.

• Rajesh, Y.C. Ratnakaram, M. Seshadri, A. Balakrishna and T. Satya Krishna, Structural and luminescence properties of Dy³⁺ ion in strontium lithium bismuth borate glasses, J. Lumin., 132 (2012) 841-849, DOI: 10.1016/j.jlumin.2011.08.050.

• Balakrishna, D. Rajesh and Y.C. Ratnakaram, Structural and Photoluminescence properties  of Dy³⁺ doped different modifier oxide based lithium borate glasses, J. Lumin., 132 (2012)  2984-2991, DOI: 10.1016/j.jlumin.2012.06.014.

Doctoral studies:

Study part: Profile subjects:

Inorganic technologies and materials II

Modules:

Theoretical principles of molecular spectroscopy, UV-vis-NIR scpectroscopy, Photoluminescence spectroscopy,

Scientific part:

Supervisor of PhD. students

Experimental work I-IX, Publication activity I and II, Active participation in a conference I and II

Education:

• 2005: Master of Science in Physics, Sri Venkateswara University Post Graduation Center, Kavali, Andhra Pradesh, India.
• 2010: M.Tech in Energy management, Department of Physics, Sri Venkateswara University, Tirupati, Andhra Pradesh, India.
• 2014: Ph.D in Physics, Sri Venkateswara University, Tirupati, Andhra Pradesh, India.

Thesis title: Concentration effect on spectroscopic properties of different rare earth ions doped strontium-lithium-bismuth-borate glasses.

 

Awards, scholarships and research stays:

• Graduation topper in Physics, Prize of the Principal of Goverment Degree College, Rajampet, Andhra Pradesh, India, 2005.
• University Grants Commission (U.G.C) Research Fellowships in Science for Meritorious Students: Sri Venkateswara University, Andhra Pradesh, India, 2011.
• Council of Scientific and Industrial Research, Senior Research Fellowship: Sri Venkateswara University, Andhra Pradesh, India, 2013.
• FAPESP Fellowship: Physics Institute of Sao Carlos, Sao Paulo University, Sao Carlos, Brazil, 2015.

  Other activities:

• Reviewer of Journals : Journal of Non-Crystalline Solids, Optical Materials, Journal of Luminesce, Journal of Alloys and Compounds, ceramic international, Journal of Physics and Chemistry of Solids