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LIST OF PUBLICATIONS

 (in reverse chronological order)

Journal Publications

List of Publications (in reverse chronological order)

 

Submitted papers:

  1. T. Jairam, N. Verma , K. Tarafder and V. Sivakumar, "Synthesis, Photophysical and Theoretical Studies of Phenanthroimidazole derivatives for Organic Light Emitting Diodes", Journal of Chemical Science, submitted

  2. Tagare,  D. K. Dubey, R. A. K. Yadav, J. H. Jou and V. Sivakumar, Efficient triphenylamine-imidazole based luminophores for deep-blue (CIEy≈0.06) organic light emitting diodes: Experimental and theoretical investigation, submitted to synthetic metal, 2019.

  3. Aravind Babu Kajjam, V. Sivakumar*, Imidazo-pyridine based luminophores for explosive Chemosensors, color convertors and OLEDs: Combined experimental and theoretical investigation, - submitted.

  4. Aravind Babu Kajjam, R V, Varun Tej, and V. Sivakumar*, Selective Detection of Nitroexplosive-PicricAcid in Solution and Solid Support Using Acenaphtene luminophores: a combined experimental and theoretical study – revision submitted to Journal of Materials Chemistry C.  

  5. Aravind Babu Kajjam, Sonaleen Biswal, Surabhi Nayak, V. Sivakumar*, AIE active Tetraphenylimidazole based luminiphores for explosive Chemosensors and OLEDs: Experimental and theoretical investigation, - submitted.

  6. S. Kasturi and V. Sivakumar*, “A new highly efficient red emitting Li3BaSrLa3(MoO4)8:Eu3+ phosphor with enhanced optical traits and quantum yield for white LEDs” – revision submitted to Journal of Alloys and Compounds.,

  7. S. Kasturi and V. Sivakumar*, “Luminescence and luminescence quenching studies of Eu3+ substituted La2-(x/y)Eu(x/y)M2O9, [M = Mo/W, x/y = 0.3 – 2] red emitting phosphor for white LEDs" – submitted.

  8. B. Rajamouli and V. Sivakumar*, “Bi-nuclear luminescent Europium(III) molecular complexes for white light emitting diodes: Experimental and theoretical study”-submitted.

  9. Singh, K.; Boddula, R.; Kajjam, A. B.; Giri, S.; Allen, M. J.; Sivakumar, V.* Effect of N-Conjugation in Imidazo-Bipyridyl Ancillary Ligands and Their Energy-Transfer Impact on Eu(III)–Beta-Diketonate Complexes for White-Light-Emitting Diodes. submitted.

https://scholar.google.co.in/citations?hl=en&user=L_SrFzcAAAAJ&view_op=list_works&sortby=pubdate

 

In Refereed International Journals:

​

  1. T. Jairam, D. K. Dubey, J. H. Jou and , Near UV/deep blue emissive phenanthroimidazole-alkyl spacer based luminophores for organic light emitting diodes: Experimental and theoretical investigation, Chemistryselect, 2019, accepted for publication, (Citation – 0), Impact factor: 1.505.

  2. Marikumar R. and V. Sivakumar*, “New red emitting phosphors NaSrLa(MO4)3 :Eu3+ [M = Mo and W] for white LEDs: Synthesis, structural and optical study” Journal of Alloys and Compounds, 2019, (Citation – 0), Impact factor: 3.779 https://doi.org/10.1016/j.jallcom.2019.03.141

  3. T. Jairam,  D. K. Dubey, R. A. K. Yadav, J. H. Jou and V. Sivakumar, Deep blue triphenylamine-imidazole based luminophores for organic light emitting diodes: Experimental and theoretical investigation, Dyes and pigments 160, 944-956 2019, (Citation – 0), Impact factor: 3.767

  4. T. Jairam and V. Sivakumar*, Recent development of phenanthroimidazole based fluorophores for blue Organic Light Emitting Diodes (OLEDs): An overview – Journal of Materials Chemistry C 6 (38), 10138-10173 – 2018, accepted for publcations, DOI: 10.1039/C8TC03689F, (Citation – 2), Impact factor: 5.976

 

  1. T. Jairam, S. S. Swayamprabha, D. K. Dubey, R. A. K. Yadav, J. H. Jou and Highly twisted Tetra-N-phenylbenzidine-Phenanthroimidazole based derivatives for blue Organic Light Emitting Diodes: Experimental and Theoretical investigation, Organic Electronics, 2018, 62, 419-428, (Citation – 1), Impact factor: 5.976.

  2. S. Kasturi, Marikumar. R and Sivakumar V*, “Trivalent Rare- earth activated hexagonal Lanthanum fluoride (LaF3:RE3+ - RE = Tb, Sm, Dy and Tm) Nanocrystals: Synthesis and optical properties”- Luminescence., 2018, (Citation – 2), Impact factor: 1.502

  3. Aravind Babu Kajjam, P Shyam Vinod kumar, V. Subramanian, and V. Sivakumar*, Triphenylamine based yellowish-orange emitting organic dyes (Donor – π – Acceptor) for hybrid WLEDs and OLEDs: synthesis, characterization and theoretical study, Phys Chem Phys Chem., 20 (6), 4490-4501, 2018 DOI: 10.1039/c7cp08670a, (Citation – 0), Impact factor: 4.123

  4. Aravind Babu Kajjam, V. Sivakumar*, AIE active Tetraphenylimidazole based luminiphores for explosive Chemosensors and OLEDs: Experimental and theoretical investigation, Journal of Photochemistry and Photobiology A: Chemistry, 350, 2018, 130-141, DOI.org/10.1016/j.jphotochem.2017.09.054, (Citation – 0), Impact factor: 2.625

  5. T. Jairam, Hidayath Ulla, M.N. Satyanarayan, V. Sivakumar*, Efficient non-doped bluish-green organic light emitting devices based on N1 functionalized star-shaped phenanthroimidazole fluorophores, Journal of Photochemistry and Photobiology A: Chemistry, 353, 2018, 53-64, DOI.org/10.1016/j.jphotochem.2017.11.001, (Citation – 0), Impact factor: 2.625

  6. T. Jairam, Hidayath Ulla, M.N. Satyanarayan, V. Sivakumar*, Synthesis, Photophysical and Electroluminescence Studies of New Triphenylamine - phenanthroimidazole Based materials for Organic Light Emitting Diodes. Journal of Luminescence, 2017,  DOI; 10.1016/j.jlumin.2017.09.020, (Citation – 5), Impact factor: 2.686

  7. Rajamouli Boddula, S. Kasturi, Giri. S, V. Sivakumar*, Controlled energy transfer from ligand to Eu(III) ion: A unique strategy to obtain bright white light emission and their versatile applications. Inorg. Chem., 2017, 56 (17), 10127–10130. DOI, 10.1021/acs.inorgchem.7b01255. (Citation – 1), Impact factor: 4.857

  8. Kasturi Singh, Rajamouli Boddula, and Sivakumar Vaidyanathan*, Versatile Luminescent Europium(III)−β-Diketonate-imidazo-bipyridyl Complexes Intended for White LEDs: A Detailed Photophysical and Theoretical Study” Inorg. Chem., 2017, 56 (15), 9376–9390, DOI: 10.1021/acs.inorgchem.7b01565, (Citation – 1), Impact factor: 4.857

  9. Aravind Babu Kajjam and V. Sivakumar*, Structural mimics of phenyl pyridine (ppy) - substituted, Phosphorescent Cyclometalated homo and heteroleptic Iridium(III) Complexes for Organic light emitting diodes - An overview. Chemical Record, 2017, DOI: 10.1002/tcr.201700035, (Citation – 5), Impact factor: 3.269

  10. Boddula Rajamouli and V. Sivakumar*, White light emissive bipolar ligand and their EuIII complex for white/red light emitting diodes. Journal of Photochemistry and Photobiology A: Chemistry 347, 26-40. DOI; 10.1016/j.jphotochem.2017.07.008, (Citation – 0), Impact factor: 2.625

  11. Boddula Rajamouli,  Rachna Devi,  Abhijeet Mohanty,  Venkata Krishnan  and  Sivakumar Vaidyanathan*, “Effects of electron-withdrawing groups in imidazole-phenanthroline ligands and their influence on the photophysical properties of EuIII complexes for white light-emitting diodes” New J. Chem. 2017, 41, 9826 - 9839. :DOI: 10.1039/c7nj02291c, (Citation – 0), Impact factor: 3.269

  12. T. Jairam, Hidayath Ulla, K. Aravind Babu, M.N. Satyanarayan, V. Sivakumar*. “Star-Shaped Phenanthroimidazole-triphenylamine based yellow organic emitter for organic light emitting diodes” –Chemistry select, 2017, - 2, 2611– 2620, 2017. DOI: 10.1002/slct.201700056. (Citation – 1), Impact factor: NA

  13. S. Kasturi and V. Sivakumar*, “Li3BaSrLa3(WO4)8:Eu3+ and Its Solid Solutions : A New Red Emitting Phosphor - Structure, Synthesis and Appraisal of Optical Properties’’ ChemistrySelect, 2, 5143–5156,2017, DOI: 10.1002/slct.201700644, (Citation – 2), Impact factor: 1.505

  14. B. Rajamouli, C. S. Dwaraka Viswanath, S. Giri, C. K. Jayasankar and V. Sivakumar*, “Carbazole functionalized new bipolar ligand for monochromatic red light emitting Europium(III) complex: combined experimental and theoretical study”, New J. Chem., 2017,41, 3112-3123, DOI: 10.1039/C6NJ03947B (Citation – 5), Impact factor: 3.269

  15. B Rajamouli, V Sivakumar, “Eu (III) Complexes for LEDs Based on Carbazole‐and Fluorene‐Functionalized Phenanthro‐Imidazole Ancillary Ligands: Detailed Photophysical and Theoretical Study”, ChemistrySelect 2 (14), 4138-4149, DOI: 10.1002/slct.201700266, (Citation – 1), Impact factor: 1.505

  16. S. Kasturi and V. Sivakumar*, “Luminescence properties of La2W2−xMoxO9 (x = 0–2): Eu3+ materials and their Judd–Ofelt analysis: novel red line emitting phosphors for pcLEDs” Mater. Chem. Front., 2017, DOI: 10.1039/C6QM00118A. (Citation – 8), Impact factor: NA

  17. K. Aravind Babu, S. Giri, V. Sivakumar*, “Triphenylamine based Donor–π–Acceptor Organic Phosphors: Synthesis, Characterization and Theoretical study”, Mater. Chem. Front., 2017, Advance Article (chosen as a best work by Editor). DOI: 10.1039/c6qm00031b. (Citation – 12), Impact factor: NA

  18. B. Rajamouli, and V. Sivakumar*, Effect of carbazole functionalization with a spacer moiety in the phenanthroimidazole bipolar ligand in a europium (III) complex on its luminescence properties: combined experimental and theoretical study”, New J. Chem., 2017, 41, 1017-1027, DOI: 10.1039/C6NJ03014A. (Citation – 0), Impact factor:3.277

  19. S. Kasturi, S. Satish Kumar and V.Sivakumar*, “Synthesis and photoluminescence properties of red emitting phosphor La2–xEuxLi0.5Al0.5O4 [x = 0.2–2] with K2NiF4 structure” Luminescence: The Journal of Biological and Chemical Luminescence, 2017 – Advanced article, DOI: 10.1002/bio.3270. (Citation – 0), Impact factor:1.502

  20. S. Kasturi and V. Sivakumar*, “Eu2+ luminescence in Ca3Si2O7 and spectral widening and tuning of Eu2+ emission color (orangish-red to green) by crystal chemical substitution”, RSC Adv., 2016, 6, 98652-98662. (Citation – 1), Impact factor:3.289 (highlighted in ChemInform Abstract)

  21. S. Kasturi and V. Sivakumar*, “Synthesis and Optical Properties of New Red Emitting Phosphor Li3BaSrGd3-xEux(MO4)8 for White LEDs”, Chemistry select, 2016, 1, 5448 -5462. (Citation – 0), Impact factor:NA

  22. Suneel Kumar, Rahul Sharma, Vipul Sharma, Gurunarayanan Harith, Vaidyanathan Sivakumar, Venkata Krishnan, “Role of RGO support and irradiation source on the photocatalytic activity of CdS–ZnO semiconductor nanostructures”, Beilstein J. Nanotechnol. 2016, 7, 1684–1697. (Citation – 5), Impact factor:  2.778 

  23. B. Rajamouli, P. Sood, S. Giri, V. Krishnan and V. Sivakumar*, "New dual characteristic bidentate ligand for ternary mono nuclear Europium (III) molecular complex: synthesis, photophysical, electrochemical and theoretical study" Eur. J. Inorg Chem., 2016 –3900-3911. (Citation – 7), Impact factor:2.942

  24. S. Kasturi, U.V. Varadaraju and V. Sivakumar*, "Synthesis and photoluminescence of Eu(II) in Barium zinc orthosilicate -   A Novel green color emitting phosphor for white LEDs" Luminescence: The Journal of Biological and Chemical Luminescence, 2016 – DOI: 10.1002/bio.3183. (Citation – 1), Impact factor:1.452

  25. S. Kasturi, D.Y. Jeon and V. Sivakumar*, “Europium-activated rare earth fluoride (LnF3:Eu3+–Ln = La, Gd) nanocrystals prepared by using ionic liquid/NH4F as a fluorine source via hydrothermal synthesis”, Luminescence: The Journal of Biological and Chemical Luminescence, 2016, 3083. (Citation – 0), Impact factor:1.452

  26. A. Duke John David, G. Shakil Muhammad and V. Sivakumar, “Synthesis and photoluminescence properties of Sm3+substituted glaserite-type orthovanadates K3Y[VO4]2 with monoclinic structure”. Journal of Luminescence 177 (2016) 104–110. (Citation – 3), Impact factor:2.693

Before Joining at NIT Rourkela (2005 – 2011)

  1. V. Sivakumar, Gun Young Hong, Je Seok Kim and D.Y. Jeon., “Novel blue emitting phosphor Sr2.98Eu0.02Al10-xBxSiO2 [x = 0, 0.25, 0.5, 0.75 and 1] for PDP applications.” J. Luminescence., 129 (2009) 1632–1636, (Citation – 10), Impact factor:2.693 DOI: 10.1016/j.jlumin.2008.12.021

  2. V. Sivakumar and U.V. Varadaraju., Eu2+, Ce3+ Luminescence and Ce3+/Eu2+ Energy Transfer Studies on Sr2LiSiO4F – “A Novel White Light Emitting Phosphor for Solid State Lighting”. J. Electrochem. Soc., 156 (7), (2009) J179 – J184, (Citation – 63), Impact factor: 3.266  10.1149/1.3122663

  3. Ho Seong Jang, Yu-Ho Won, Sivakumar Vaidyanathan, Dong Hyuk Kim, and Duk Young Jeon, “Emission Band Change of (Sr1−xMx)3SiO5:Eu2+ (M=Ca,  Ba) Phosphor for White Light Sources Using Blue/Near-Ultraviolet LEDs”. J. Electrochem. Soc., 156 (6), (2009) J138 - J142, (Citation – 67, Impact factor:3.266 DOI: 10.1149/1.3106042

  4. V. Sivakumar and D.Y. Jeon., “A Novel narrow band red emitting phosphor for white light emitting diodes” Int. J. Appl. Ceram. Technol., 6(4) (2009) 453–458, (Citation – 24), Impact factor:1.534 DOI:10.1111/j.1744-7402.2009.02371.x

  5. Won Bin Im, Hyoung Sun Yoo, Sivakumar Vaidyanathan, “Ki Hyuk Kwon, Hyung Jun Park, Yong-Il Kim, Duk Young Jeon., A novel blue-emitting silica-coated KBaPO4:Eu2+ phosphor under vacuum ultraviolet and ultraviolet excitation” Materials Chemistry and Physics, 115(1), (2009), 161-164, (Citation – 61), Impact factor:2.101 DOI: 10.1016/j.matchemphys.2008.11.050

  6. Hyoung Sun Yoo, Sivakumar Vaidyanathan, Sung Wook Kim, Duk Young Jeon “Synthesis and photoluminescence properties of Yb2+ doped Ba5(PO4)3Cl phosphor for white light-emitting diodes” Optical Materials, 31(11), (2009) 1555-1558, (Citation – 30), Impact factor:2.023 DOI:10.1016/j.optmat.2009.02.017

  7. V. Sivakumar and U.V. Varadaraju., “Synthesis, phase transition and photoluminescence studies on Eu3+-substituted double perovskites—A novel orange-red phosphor for solid-state lighting” J. Solid State. Chem., 181 (12), (2008) 3344 – 3351, (Citation – 85), Impact factor: 2.133 DOI: 10.1016/j.jssc.2008.08.030

  8. H. S. Yoo, W. B. Im, V. Sivakumar*, Bong Je Park, and Duk Young Jeon, “Effects of Eu2+ Concentration Variation and Ce3+ Co-doping on Photoluminescence Properties of BaGa2S4:Eu2+ Phosphor”. J. Electrochem. Soc., 155 (3), (2008) J66 – J70, (Citation – 19), Impact factor: 3.266 DOI: 10.1149/1.2825303

  9. V. Sivakumar and U.V. Varadaraju, “Ce3+/Eu2+ energy transfer studies on BaMgSiO4 – A Green phosphor for three band white LEDs”. J. Electrochem. Soc., 154, (2007) J167 – J171, (Citation – 41), Impact factor:3.266 DOI: 10.1149/1.2714303

  10. V. Sivakumar and U.V. Varadaraju., “An Novel Orange – red phosphor under Near UV excitation for white LEDs”. J. Electrochem. Soc., 154, (2007) J28 – J31, (Citation – 82), Impact factor: 3.266 DOI: 10.1149/1.2382266

  11. V. Sivakumar and U.V. Varadaraju. “A Promising Orange – Red phosphor under Near UV excitation”. Electrochem. Solid. State letters, 9(6) (2006) H35 - H38, (Citation – 93), Impact factor: 2.321 DOI: 10.1149/1.2189155

  12. V. Sivakumar and U.V. Varadaraju., “Intense Red Phosphor for white LED based on Blue GaN LEDs” J. Electrochem. Soc., 153(3) (2006), H54 - H57, (Citation – 74), Impact factor: 3.266 DOI: 10.1149/1.2163781

  13. V. Sivakumar and U. V. Varadaraju, “A Novel green phosphor for three band white LEDs”. SPIE proc., 5941, (2005) 1 – 9, (Citation – 3), Impact factor:

  14. V. Sivakumar and U.V. Varadaraju., “Intense red - emitting phosphors for white LEDs”. J. Electrochem. Soc., 152(10) (2005) H168 - H171, (Citation – 114), Impact factor: 3.266 DOI: 10.1149/1.2034515

  15. V. Sivakumar and U.V. Varadaraju., Environmentally benign novel green pigments: Pr1-xCaxPO4 [x = 0 – 0.4]. Bull. Mater. Sci., 28(3) (2005) 299-301 (Rapid communication), (Citation – 15, Self – 0) DOI: 10.1007/BF02711264

  16. Europium-activated rare earth fluoride (LnF3:Eu3+–Ln = La, Gd) na nocrystals prepared by using ionic liquid/NH4Fas a flu orine source via hydrothermal synthesis

 

In Refereed National Journals: 

​

  1. A. Duke John David, G. Shakil Muhammad and V. Sivakumar*, “Synthesis and luminescence properties of Eu3+- substituted CsK2La(VO4)2 a Glaserite-type orthovanadates” International Journal of Luminescence and applications, 5, 2015, 393.

  2. A. Duke John David, G. Shakil Muhammad and V. Sivakumar*, “Synthesis, Phase Formation between Solid Solutions and Photoluminescence Studies on Rare Earth Doped - Glaserite Type Orthovanadate Ca9Y(1-x)-yEux[VO4]7: Lay”. International Journal of Applied Science and Mathematics, 2 (4) 2015, 2394.

  3. V. Sivakumar*, “Iridium based molecular complexes for OLED applications” International Journal of luminescence and its applications, 3(1), 2013, 45 – 48

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