Dr. DEEPTHI N RAJENDRAN
Associate Professor & Research Guide
Department of Physics
Government College for Women
Thiruvanathapuram
Kerala
Email: deepthinrphysics@gmail.com
Academic Qualification:
MSc, BEd, MPhil, PhD
Research
Areas of Research: Development of nanomaterials for energy application – Development of electrolyte and electrode materials for solid oxide fuel cell application,
Synthesis of novel nanophosphors for solid state lighting, bioimaging and biosensing application.
Research projects undertaken.
- Development of tri and tetra valent ions doped Ceria based nanoelectrolytes for Solid Oxide Fuel Cell application Rs. 17,60,000/- SERB-EMR (2018) (36 months)- Completed
- Synthesis and characterization of nanocrystalline Gd doped CeO2 electrolyte for SOFC application Rs. 1,75,000/- UGC (2013) (18 months)-Completed
Research Guidance
Research scholars
1 Chitra Priya N S Synthesis and Characterization of Trivalent ion doped Ceria based Nano electrolyte for Solid Oxide Fuel Cell Applications – Awarded
2 Bhagyalekshmi G L Synthesis and characterization of rare earth-based nanophosphors for various applications – Awarded
3 Neethu Sha A P Studies on Structural and Optical Properties of Nanophosphor Materials-Awarded
4 Sandhya K Synthesis and characterization of novel nanoelectrolytes for Solid Oxide Fuel Cell application -Awarded
5 Archana L S Size dependent effects and substitutional changes in the optical properties of rare earth-based nanophosphor-Awarded
6 Aswathy P K Effect of dopants on the properties of rare earth cobaltite systems-Awarded
7 Revathi J S (Inspire fellow) Compositional tuning and optimization of structure-optical behaviours of ultrafine oxides and oxyfluorides for efficient
applications in the sector of lighting and security-Awarded
8 Sreejaya T S (PT) Optical characterisation of Nanophosphor materials for medical field and lighting technology applications-On going
9 Parvathy R S Study the effect of tri and tetra valent ion doping on Ceria based systems and its application in Electrochemical devices. – On going
10 Drisya M Enhancing the luminescent properties of certain rare earth containing phosphors for multifunctional applications-On going
11 Aswany V S Development of Novel Ceramic Materials for Energy Applications – On going
MSc Dissertation – 32 Nos.
Other Information:
Experience in X ray spectra analysis, scanning electron microscopic analysis and Impedance spectroscopy analysis, Knowledge in Retvield Refinement and Guassian software
Hand on experience in Photoluminescent spectrometer and UV Vis spectrophotometer.
Co-ordinator, National conference on “New Dimensions in Materials Science” sponsored by Director, Collegiate education, Govt. of Kerala, at Govt. College for
Women, Thiruvananthapuram on 15th & 16th December 2011.
Invited talk:
1. “Nanomaterials for energy application”, National seminar on Materials Science and Characterization, Govt. College, Nedumangad, December 2015.
2. “Materials for clean and green energy”, National conference on Current trends in Materials Science, Christian College, Chengannur, March 2016.
3. “Materials for Sustainable Development” Science Day Celebration, SNGAS, Chempazhanthy, February 2022
Papers published
1. L.S. Archana, Deepthi N. Rajendran, K. Sreelatha, Jincemon Cyriac, Effect of Sm3+ ions doping on the structural and optical properties, Judd-Ofelt and radiative
parameters of ZnS phosphor materials, Materials Chemistry and Physics 305 (2023) 127934, doi.org/10.1016/j.matchemphys.2023.127934
2. J.S. Revathy, Malini Abraham, G. Jagannath, Deepthi N. Rajendran, Subrata Das, Microwave-assisted synthesis of GdOF: Eu3+/Tb3+ ultrafine phosphor
powders suitable for advanced forensic and security ink applications, Journal of Colloid and Interface Science, 641 (2023) 1014-1032, doi.org/ 10.1016/ j.jcis.
2023.03.082
3. P.K. Aswathy, Deepthi N. Rajendran, Effect of Fe ion substitution at B site of samarium cobaltite perovskites, Physica B: Physics of Condensed Matter,
647(2022)414361
4. P.K. Aswathy, R. Ganga, Deepthi N Rajendran, Impact of A-site calcium on structural and electrical properties of samarium cobaltite perovskites, Solid State
Communications,350(2022)114748
5. L.S. Archana, Deepthi N. Rajendran, Jincemon Cyriac, Influence of rare earth substitution on structure, photoluminescence emission properties and Judd-Ofelt
analysis of ZnS: Eu3+red phosphors, Journal of Luminescence, 243 (2022), 118679
6. L.S. Archana, Deepthi N. Rajendran, An insight into the structure, luminescent characteristics and Judd-Ofelt analysis of (1-x) ZnS-(x) Dy2O3 phosphors,
Materials Science in Semiconductor Processing, 128 (2021) 105752, doi.org / 10.1016 / j. mssp. 2021.105752
7. G.L. Bhagyalekshmi, Deepthi N. Rajendran, Luminescence dynamics of Eu3+activated and co-activated defect spinel zinc titanate nanophosphor for applications in WLEDs, Journal of Alloys and Compounds 850 (2021) 156660
8. J S Revathy , N S Chitra Priya, K Sandhya, Deepthi N Rajendran, Structural and optical studies of cerium doped gadolinium oxide phosphor, Bull Mater Sci (2021)
44:13 doi.org/10.1007/s12034-020-02299-w
9. L.S. Archana, Deepthi N. Rajendran, Luminescence of rare earth doped ZnS nanophosphors for the applications in optical displays, Materials Today: Proceedings, 41, 3, (2021), 461-467, doi.org/10.1016/j.matpr.2020.05.227
10. J.S. Revathy, Deepthi N. Rajendran, Temperature dependent photoluminescence studies of NUV excited Gd2O3: Eu phosphor, Materials today: Proceedings, 47,
9, (2021), 2007-2012, doi.org/10.1016/j.matpr.2021.04.161
11. N.S. Chitra Priya, K. Sandhya, Deepthi N Rajendran, Impedance Spectroscopic Studies of B2O3-Substituted CeO2-Gd2O3 Systems, Journal of Electronic Materials, 49, (2020) 6706–6714, doi.org/10.1007/s11664-020-08449-4
12. K. Sandhya, N. S. Chitra Priya, Deepthi N. Rajendran, Enhancement of electrical properties Ce0.8Sm0.2−xO2−δ by Sr2+ doping, Applied Physics A (2020) 126:613
13. K. Sandhya, N.S. Chitra Priya, Deepthi N Rajendran and Praveen Thappily, Structural and Electrical Properties of Cerium Oxides Doped by Sb3+ and Bi3+ Cations, J. of Electronic Materials, (2020) doi.org/10.1007/s11664-020-08220-9
14. Bhagyalekshmi G.L, Deepthi N. Rajendran, Oxygen defect mediated CeO2 based binary and ternary nanocomposite for sustainable water purification, Materials Letters 273 (2020) 127929
15. U Aswathy, K Sandhya, N S ChitraPriya, Deepthi N Rajendran, Structural and Electrical Properties of Bi3+ Doped GDC and SDC System, AIP Conference Proceedings 2287, 020012 (2020), doi.org/10.1063/5.0029874
16. Revathy J S, Krishna P S, Deepthi N. Rajendran, Temperature dependent studies of erbium doped gadolinium oxide phosphor, AIP Conference Proceedings 2287, 020006 (2020), doi.org/10.1063/5.0029882
17. A. P. Neethu Sha, Deepthi N. Rajendran, Structural and Optical Properties of Ni Doped ZnO Synthesized by Solution Combustion Method, AIP Conference Proceedings 2220, 020168 (2020), doi.org/10.1063/5.0001465
18. Bhagyalekshmi G.L, Deepthi N. Rajendran, Effect of lanthanide ion co-doping on the luminescence in the cerium-doped zinc oxide phosphor system, Spectroscopy Letters, ISSN: 0038-7010 (Print) 1532-2289 (Online), doi.org / 10.1080 / 00387010. 2019. 1659824
19. G. L. Bhagyalekshmi, A. P. Neethu Sha, Deepthi N. Rajendran, Luminescence kinetics of low temperature nano ZnTiO3: Eu3+ red spinel under NUV excitation,
J. Mater. Sci.: Mater. Ele, (2019) 30:10673–10685
20. N S Chitra Priya, K Sandhya, P K Aswathy, Deepthi N Rajendran, Sb3+ and Gd3+ co-doped Cerium oxide Nanocrystalline Ceramic system: Structural and Dielectric
Studies, Materials Today: Proceedings, 10 (2019) 46–51
21. Sandhya K, Chitra Priya N S, Aswathy P K, Deepthi N Rajendran, Electrical properties of rare earth doped ceria electrolyte for solid oxide fuel cell applications, Materials Today: Proceedings,10 (2019) 112-120
22. Aswathy. P. K, Chitra Priya N S, Sandhya K, Deepthi. N. Rajendran, Structural transformations on transition metal doped Sm2O3 nanomaterials, Materials
Today:Proceedings, 10 (2019) 159–165
23. A. P. Neethu Sha, K. Sandhya, Deepthi N Rajendran, Structural and optical properties of metal ion doped ZnO nanoparticles, AIP Conference Proceedings
2162, 020163 (2019), doi.org/10.1063/1.5130373.
24. Bhagyalekshmi G L, Neethusha A P, Deepthi N Rajendran, Synthesis, characterization and photoluminescence properties of Ce3+ doped ZnO nanophosphor, IOP Conf. Series: Materials Science and Engineering 360 (2018) 012005
25. Neethu Sha A P, Bhagyalekshmi G L, Deepthi N Rajendran, Synthesis and characterization of P2O5 doped ZnO, IOP Conf. Series: Materials Science and Engineering, 360 (2018) 012006
26. Sandhya K, Chitra Priya N S, Deepthi N Rajendran, Synthesis and characterization of ceria co-doped with samarium (Sm) and antimony: a potential candidate as a solid electrolyte for intermediate temperature solid oxide fuel cells,IOP Conf. Series: Materials Science and Engineering 360 (2018) 012021 27. Archana L S, Deepthi N Rajendran, Structural and optical properties of Ce3+ doped ZnS nanoparticles, Adv. Sci. Let. 24,8(2018) 5994-5999
28. Chitra Priya N S, Sandhya K, Deepthi N Rajendran, Structure, morphology and dielectric properties of Gadolinium doped Ceria co -doped with Bismuth (III) ions, Rev. Adv. Mater. Sci., 52 (2017) 43-48
29. Bhagyalekshmi G. L., Neethusha A. P., Deepthi N. Rajendran, Temperature Independent Photoluminescence Response In ZnO: Ce Nanophosphor, Bull. Mater. Sci. 40(2017)1429-1434
30. Sandhya K, Chitra Priya N S, Aswathy P K, Deepthi N Rajendran, Enhanced structural and electrical properties due to the effect of co-doping ceria electrolyte, AIP Conference Proceedings,1849 (2017) 020032-1-020032-8
31. Deepthi N Rajendran, K Ravindran Nair, P Prabhakar Rao, K S Sibi, Peter Koshy, V K Vaidyan, Ionic conductivity in new perovskite type oxides: NaAZrMO6 (A=Ca or Sr; M=Nb or Ta), Mater. Chem. Phys. 109(2008)189-193
32. Deepthi N Rajendran, K Ravindran Nair, P Prabhakar Rao, K S Sibi, Peter Koshy, V K Vaidyan, New perovskite type oxides: NaATiMO6 (A=Ca or Sr; M=Nb or Ta) and their electrical properties, Mater. Lett. 62(2008)623-628
33. P Prabhakar Rao, Deepthi N Rajendran, K Ravindran Nair, Peter Koshy, V K Vaidyan, Microwave dielectric properties of new pyrochlore type oxides:
Pb3R3Ti7Nb2O26.5 (R = Y, Pr, Nd, Gd or Dy), Mater. Sci& Eng. B, 128(2006) 184-187.
34. Chitra Priya N S, Sandhya K, Deepthi N Rajendran, Study on Electrical conductivity and Activation energy of doped Ceria nanostructures, Electrochem. Energy Technol., 3 (2017) 49-53
35. Bhagyalekshmi G. L., Neethusha A. P., Deepthi N. Rajendran, Excitation of Intra4f shell luminescence of Cerium ions by the energy transfer from Zn nanocrystals, Nano Trends: A Journal of Nanotechnology and Its Applications19(2017)32-42
36. Chitra Priya N S, Sandhya K, Deepthi N Rajendran, Facile synthesis of Ceria Based Ceramic Nanorods by Citrate gel route, Journal of Ultrascientist of Physical Science, 29,12 (2017) 356-361
37. Bhagyalekshmi G. L., Neethusha A. P., Deepthi N. Rajendran, Investigation on phase transformation of TiO2 nanoparticles with different annealing temperatures,
Inte. J. Adv.Res. Sci. Eng., 6, 3(2017) 16-21, IJARE, ISSN 2319-8354
38. Neethusha A. P., Bhagyalekshmi G. L., Deepthi N. Rajendran, Structural and morphological characterisation of doped ZnO, Inte. J. Adv.Res. Sci. Eng., 6, 3(2017) 43-48, IJARE, ISSN 2319-8354
39. Sandhya K, Chitra Priya N S, Aswathy P K, Deepthi N Rajendran, Impact of reduced sintering temperature on the grain size of samarium doped ceria electrolyte, Inte. J. Adv.Res. Sci. Eng., 6, 3 (2017) 43-48, IJARE, ISSN 2319-8354
40. ChitraPriya N S, Sandhya K, Deepthi N Rajendran, Modification of Structuraland Electrical Properties of GDC with Sb3+ Ions, Nano Trends: A Journal of Nanotechnology and Its Applications18(2016)27-35
41. Chitra Priya N S, Sandhya K, Deepthi N Rajendran, Influence of B3+ ion on electrical properties of Gadolinium doped Ceria, Inte. J. of Eng. Trends and Tech., 37, 4 (2016) 184-188 (IJETT) (ISSN: 2231-5381).
42. Sandhya K., Chitra Priya N.S, Deepthi N. Rajendran, Shabeer T K, Nano Crystalline Thin-Film Electrolyte For Solid Oxide Fuel Cell Application: A Brief Review, Inte. J. of Inn. Res. Adv. Studies, 3,7 (2016) 251 (ISSN: 2394-4404)
43. Sandhya. K, Chitra Priya N.S., Deepthi. N. Rajendran, Nano Crystalline Electrolyte as a best potential candidate for Solid Oxide Fuel Cell application and its current Status, “Inter. J. of Eng. Trends Tech. 37,7 (2016) 400(IJETT) (ISSN: 2231- 5381)
44. Chitra Priya N.S., Deepthi. N. Rajendran, Sandhya. K, Structural modification of ceria electrolyte with gadolinium (III) doping, Echoes of research, Vol. 5 (2016)
25-30, ISSN 2348-2680
45. Bhagyalekshmi G. L., Neethusha A. P., Deepthi N. Rajendran, Pr doped ZnO nanophosphors by combustion method: structural and optical properties study,
Echoes of research, Vol. 5 (2016) 31-39, ISSN 2348-2680
Conference presentation:
1. Luminescence properties and Cytotoxic studies of Y2O3: Eu nanophosphors, Deepthi N. Rajendran, International Conference on Science and Technology of Advanced
Materials (STAM.23), Mar Athanasius College (Autonomous) Kothamangalam, Kerala, 18th, 19th and 20th April 2023
2. Structural and Electrical properties of Bi3+ doped GDC and SDC system, Deepthi N. Rajendran, International Conference on Energy and Environment, T K M College of
Arts and Science, Kollam, 2019.
3. Study on Bi(III) doped CeO2-Gd2O3 solid electrolyte for Intermediate Temperature Solid Oxide Fuel cells, Deepthi N Rajendran, National Conference on Emerging
Trends in Science, Technology & Application of Electron Microscopy, NIIST, Thiruvananthapuram, 19th– 21st December, 2018.
4. Synthesis, Characterisation and Antibacterial property of Bi doped ZnO nano particles, Deepthi N. Rajendran, National seminar on Interdisciplinary Approaches in Materials and Biological Research, Mahatma Gandhi College, Thiruvananthapuram, 2018.
5. Effect of Sb doping on structural and electrical properties of doped ceria solid electrolyte, Chitra Priya N S, Sandhya K, Deepthi N Rajendran, Second International
Conference on Electrochemical Science and Technology , IISc, Bengaluru, INDIA, August 10-12, 2017
6. Structural and optical properties of Zn doped nickel oxide nanoparticles, Deepthi N Rajendran, Suchithra V G, Remya G, International conference on perspectives in
vibrational spectroscopy,Bishop Moore College, Mavellikara, 2013
