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Justin Thomas K. R.
K. R. Justin Thomas Associate Professor krjt8fcy[at]iitr.ac.in +91-1332-285376 Website
Areas of Interest
  • Organic Electronics, Organic dyes for photovoltaics and organic light emitting diodes
  • Physical Organic Chemistry, Experiemtal and theoretical studies on structure-property relationship in organic materials
  • Photochemistry, Photophysical properties of organic materials
  • Heterocycles, Design and synthesis of nitrogen rich heterocycles
Professional Background
FromToDesignationOrganisation
2012On GoingAssociate ProfessorDepartment of Chemistry, Indian Institute of Technology Roorkee, Roorkee, India
20062012Assistant ProfessorDepartment of Chemistry, Indian Institute of Technology Roorkee, Roorkee, India
20042006Senior Post-doctoral FellowInstitute of Chemistry, Academia Sinica, Taipei, Taiwan
20032004Research AssociateDepartment of Chemistry, University of Massachussetts at Amherst, USA
19972003NSC Post-doctoral FellowInstitute of Chemistry, Academia Sinica, Taipei, Taiwan
19951997Senior Project Officer Gr IIRSIC, IIT Madras, Chennai
Honors and Awards
AwardInstituteYear
FellowRoyal Society of Chemistry, London2018
Bronze MedalChemical Research Society of India2018
DST Young ScientistDepartment of Science and Technology, New Delhi1995
Educational Details
DegreeSubjectUniversityYear
B.Sc.Chemistry, Physics, MathematicsMadurai Kamaraj University, Madurai1988
M.Sc.ChemistryMadurai Kamaraj University (The American College), Madurai.1990
Ph.D.ChemistryIndian Institute of Technology Kanpur, India1995
Sponsored Research Projects
TopicFunding AgencyYear
Organic Materials Containing Heterocyclic Building BlocksCSIR, New Delhi2015
New Materials and Methods for the Efficient Photovoltaic Devices (Phase II)DST2015
New Materials and Methods for the Efficient Photovoltaic DevicesDST2011
Pyrenoimidazole-Based Dipolar Compounds for PhotovoltaicsCSIR2011
Organic Dyes for Dye-Sensitized Solar CellsBASF, Germany2009
Synthesis and Spectroelectrochemical ... Organic Dyes Suitable for Dye-Sensitized Solar CellsIndian Institute of Technology Roorkee2008
New Carbazole Derivatives for Electro-OpticsCSIR2007
Synthesis and Characterization of Polyaromatic ... Functional MaterialsDST2007
Organic Dyes for Dye-Sensitized Solar CellsIndian Institute of Technology Roorkee2006
Memberships
  • Royal Society of Chemistry, Fellow
  • American Chemical Society, Member
  • Chemical Research Society of India, Member
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Year
SYNTHESIS AND CHARACTERIZATION OF MATERIALS BASED ON INDOLOQUINOXALINEPayal TyagiA2007
DIPOLAR COMPOUNDS FOR ELECTRO-OPTICAL APPLICATIONSPrachi SinghA2007
STUDIES ON COPPER AND ZINC COMPLEXES OF POLYDENTATE LIGANDSPramod KumarA2006
SYNTHESIS AND CHARACTERIZATION OF POLYAROMATIC HYDROCARBON-BASED FUNCTIONAL MATERIALSNeha KapoorA2008
IMIDAZOLE-BASED ORGANIC DYES FOR ELECTRO-OPTICAL APPLICATIONSDhirendra KumarA2008
ISOMERIC CARBAZOLE DERIVATIVES FOR ELECTRO-OPTICAL APPLICATIONSSushil KumarA2008
BENZOTHIADIAZOLE DERIVATIVES FOR PHOTOVOLTAIC DEVICESB. M. N. K. PrasadA2009
FLUORENE BASED ORGANIC DYES FOR DYE SENSITIZED SOLAR CELLSAbhishek BahetiA2010
CARBAZOLE-BASED ORGANIC DYES FOR DYE-SENSITIZED SOLAR CELLSA. VenkateswararaoA2010
PHENOTHIAZINE-BASED FUNCTIONAL MATERIALS FOR ELECTRONIC APPLICATIONSGovardhana Babu BodedlaA2011
MULTI-SUBSTITUTED CARBAZOLE-BASED FUNCTIONAL MATERIALS FOR OPTOELECTRONIC APPLRajendra Kumar KonidenaA2012
MULTI CHROMOPHORIC MATERIALS FOR ELECTRONIC APPLICATIONSDurai KarthikA2011
NAPHTHALIMIDE-BASED MATERIALS FOR ELECTRONIC AND BIOLOGICAL APPLICATIONSAnkita SainiA2013
DITHIENOPYRROLE-BASED ORGANIC MATERIALS FOR PHOTOVOLTAICSSunil KumarA2013
CYANOCARBAZOLE BASED ORGANIC MATERIALS FOR ELECTRONIC APPLICATIONSJoseph VA2013
Benzothiadiazole-based organic materials for electronic applicationsAmbika PathakO2014
Organic materials containing new heteroaromatic building blocksTina TomerO2014
Fused Heteroaromatic Chromophores for Electronic ApplicationsAnupriyaO2015
Functional Enrichment of Pyrene-based Organic Emitters for OLED ApplicationsAbhishek MauryaO2016
Dipolar Carbazoles for OLEDAnuj SharmaO2016
Photocatalytic Organic TransformationsAnupam DasO2018
Books Authored
  1. Magnetic Graphene Nanocomposites for Multi-Functional Applications
    B. Garg, T. Bisht, and K. R. J. Thomas, in Complex Magnetic Nanostructures. Synthesis, Assembly and Applications, Edited by S. K. Sharma.
    Published by Springer. Year: 2017.
  2. Carbazole-based organic dyes for dye-sensitized solar cells: Role of carbazole as donor, auxiliary donor and π-linker
    A. Venkateswararao and K. R. J. Thomas, in Solar Cell Nanotechnology, Edited by A. Tiwari, R. Boukherroub and M. Sharon.
    Published by Wiley-Scrivener Publishing, Page No: 41-96, Year: 2013.
  3. Structure and Bonding: Recent Aspects in the Structure and Reactivity of Cyclophosphazenes
    V. Chandrasekhar and K. R. Justin Thomas in Structure and Bonding
    Published by: Springer Verlag Page No: 41-113 (Vol 81) Year: 1993
Refereed Journal Papers

Total Number of Publications: 150 (h-index: 41)

From IIT Roorkee : 85 (ACS: 16; RSC: 18; Wiley: 14; Elsevier: 24)

Selected Recent Publications

  1. Simple carbazole based deep-blue emitters: The effect of spacer, linkage and end-capping cyano group on the photophysical and electroluminescent properties, V. Joseph, K. R. J. Thomas, S. Sahoo, M. Singh, J.-H. Jou, Dyes Pigm., 2018, 151, 310-320.
  2. Manipulation of donor-acceptor interactions in carbazole-based emitters by chromophore choice to achieve near-UV emission, V. Joseph, K. R. J. Thomas, M. Singh, S. Sahoo, J.-H. Jou, Eur. J. Org. Chem., 2017, 6660-6670.(DOI: 10.1002/ejoc.201701285)
  3. Fine-Tuning of Photophysical and Electroluminescence Properties of Benzothiadiazole-Based Emitters by Methyl Substitution, A. Pathak, K. R. J. Thomas, M. Singh, J.-H. Jou, J. Org. Chem., 2017, 82, 11512-11523. (DOI: 10.1021/acs.joc.7b02127)
  4. New Molecular Design Based on Hybridized Local and Charge Transfer Fluorescence for Highly Efficient (> 6%) Deep-Blue Organic Light Emitting Diodes, R. K. Konidena, K. R. J. Thomas, D. K. Dubey, S. Sahoo, J.-H. Jou, Chem. Commun., 2017, 53, 11802-11805. (DOI: 10.1039/C7CC07139F)
  5. Photophysics, electrochemistry, morphology and bioimaging applications of new 1,8-naphthalimide derivatives containing different chromophores, A. Saini, K. R. J. Thomas, A. Sachdev and P. Gopinath, Chem. Asian J. 2017, 5, 2612-2622. (DOI: 10.1002/asia.201700968)
  6. Multi-substituted deep-blue emitting carbazoles: a comparative study on photophysical and electroluminescence characteristics, Rajendra Kumar Konidena, K. R. J. Thomas, S. Sahoo, D. K. Dubey, J.-H. Jou, J. Mater. Chem. C, 2017, 5, 709-726. (DOI: 10.1039/C6TC04870F)
  7. Bi-anchoring organic dyes that contain benzimidazole branches for dye-sensitized solar cells: effects of pi-spacer and peripheral donor groups, G. B. Bodedla, K. R. J. Thomas, M.-S. Fan and K.-C. Ho, Chem. Asian J., 2016, 11, 2564-2577. (DOI: 10.1002/asia.201600766)
  8. Bis-naphthalimides bridged by electron acceptors: optical and self-assembly characteristics, A. Saini and K. R. J. Thomas, RSC Adv., 2016, 6, 71638-71651. (DOI: 10.1039/C6RA12776B)
  9. Synthesis, characterization and electroluminescence of carbazole-benzimidazole hybrids with thiophene/phenyl linker, D. Karthik, K.R. J. Thomas, J.-H. Jou, Y.-L. Chen, Dyes Pigm., 2016, 133, 132-142. (DOI: 10.1016/j.dyepig.2016.05.046)
  10. Thienylphenothiazine Integrated Pyrenes: An Account on the Influence of Substitution Pattern on Optical and Electroluminescent Properties, R. K. Konidena, K. R. J. Thomas, M. Singh and J.-H. Jou, J. Mater. Chem. C, 2016, 4, 4246-4258. (DOI: 10.1039/C6TC00354K)
  11. Synthesis and characterization of thieno[3,4-d]imidazole-based organic sensitizers for photoelectrochemical cells, D. Karthik, V. Kumar, K. R. J. Thomas, C.-T. Li and K.-C. Ho, Dyes Pigm., 2016, 129, 60-70. (DOI: 10.1016/j.dyepig.2016.02.009)
  12. Benzimidazole-Branched Isomeric Dyes: Effect of Molecular Constitution on Photophysical, Electrochemical and Photovoltaic Properties, G. B. Bodedla, K. R. J. Thomas, M.-S. Fan, K.-C. Ho, J. Org. Chem., 2016, 81, 640-653. (DOI: 10.1021/acs.joc.5b02590)
  13. Phenothiazine-based bipolar green-emitters containing benzimidazole units: synthesis, photophysical and electroluminescence properties, G. B. Bodedla, K. R. J. Thomas, S. Kumar, J.-H. Jou and C.-J. Li, RSC Adv., 2015, 5, 87416-87428. (DOI: 10.1039/c5ra18372c)
  14. Organic dyes containing fluoreneamine donor and carbazole π-linker for dye-sensitized solar cells, K. R. J. Thomas, A. Venkateswararao, C.-P.Lee and K.-C. Ho, Dyes Pigm., 2015, 126, 154-165. (DOI: 10.1016/j.dyepig.2015.07.034)
  15. Synthesis and photovoltaic properties of organic dyes containing N-fluoren-2-yl dithieno[3,2-b:2′,3′-d]pyrrole and different donors, S. Kumar, K. R. J. Thomas, C.-T. Li, K.-C. Ho, Org. Electron., 2015, 26, 109-116. (DOI: 10.1016/j.orgel.2015.07.019)
  16. Phenothiazine Decorated Carbazoles: Effect of Substitution Pattern on the Optical and Electroluminescent Characteristics, R. K. Konidena, K. R. J. Thomas, S. Kumar, Y.-C. Wang, C.-J. Li, J.-H. Jou, J. Org. Chem., 2015, 80, 5812-5823. (DOI: 10.1021/acs.joc.5b00787)
  17. Highly efficient ultra-deep blue organic light-emitting diodes with a wet- and dry-process feasible cyanofluorene acetylene based emitter, J.-H. Jou, S. Kumar, P.-H. Fang, A. Venkateswararao, K. R. J. thomas, J.-J. Shyue, Y.-C. Wang, T.-H. Li and H.-H. Yu, J. Mater. Chem. C, 2015, 3, 2182-2194. (DOI: 10.1039/C4TC02547D)
  18. Fluorene-Based Sensitizers with a Phenothiazine Donor: Effect of Mode of Donor Tethering on the Performance of Dye-Sensitized Solar Cells, A. Baheti, K. R. J. Thomas, C.-T. Li, C.-P. Lee, K.-C. Ho, ACS Appl. Mater. Interfaces, 2015, 7, 2249-2262. (DOI: 10.1021/am506149q)
  19. Triarylamine-Free Pyrenoimidazole-Containing Organic Dyes with Different pi-Linkers for Dye-Sensitized Solar Cells, D. Kumar, K. R. J. Thomas, C.-P. Lee, K.-C. Ho, Asian J. Org. Chem., 2015, 4, 164-172. (DOI: 10.1002/ajoc.201402214)
  20. Synthesis, optical, electrochemical and photovoltaic properties of organic dyes containing trifluorenylamine donors, A. Baheti, S. R. Gajjela, P. Balaya, K. R. J. Thomas, Dyes Pigm., 2015, 113, 78-86. (DOI: 10.1016/j.dyepig.2014.07.036)
  21. Functional tuning of organic dyes containing 2,7-carbazole and other electron-rich segments in the conjugation pathway, A. Venkateswararao, K. R. J. Thomas, C.-T. Li, K.-C. Ho, RSC Adv., 2015, 5, 17953-17966. (DOI: 10.1039/c4ra15234d)
  22. Deep-blue emitting pyrene-benzimidazole conjugates for solution processed organic light-emitting diodes, D. Karthik, K. R. J. Thomas, J.-H. Jou, S. Kumar, Y.-L. Chen, Y.-C. Jou, RSC Adv., 2015, 5, 8727-8738. (DOI: 10.1039/c4ra11043a)
  23. Effect of Auxiliary Chromophores on the Optical, Electrochemical, and Photovoltaic Properties of Carbazole-Based Dyes, A. Venkateswararao, K. R. J. Thomas, C.-P. Lee, K.-C. Ho, Asian J. Org. Chem., 2015, 4, 69-80. (DOI: 10.1002/ajoc.201402235)
  24. Organic dyes containing indolo[2,3-b]quinoxaline as a donor: synthesis, optical and photovoltaic properties, A. Venkateswararao, P. Tyagi, K. R. J. Thomas, P.-W. Chen, K.-C. Ho, Tetrahedron, 2014, 70, 6318-6327. (DOI: 10.1016/j.tet.2014.04.009).
  25. Monoanchoring (D-D-π-A) and Dianchoring (D-D-(π-A)(2)) Organic Dyes Featuring Triarylamine Donors Composed of Fluorene and Carbazole, A. Baheti, K. R. J. Thomas, L.-C. Lin, K. M. Lee, Asian J. Org. Chem., 2014, 3, 886-898. (DOI: 10.1002/ajoc.201402073)
  26. 2-Hydroxyarylimidazole-based colorimetric and ratiometric fluoride ion sensors, D. Kumar, K. R. J. Thomas, RSC Adv., 2014, 4, 56466-56474. (DOI: 10.1039/c4ra10482j)
  27. Functional tuning of phenothiazine-based dyes by a benzimidazole auxiliary chromophore: an account of optical and photovoltaic studies, G. B. Bodedla, K. R. J. Thomas, C.-T. Li, K.-C. Ho, RSC Adv., 2014, 4, 53588-53601. (DOI: 10.1039/c4ra09300c)
  28. Materials, Designs, Fabrications, and Applications of Organic Electronic Devices (Editorial), J.-W. Jou, R. Lygaitis, K. R. J. Thomas, L.-S. Liao, Int. J. Photoenergy, 2014, 512717. (DOI: 10.1155/2014/512717)
  29. Organic dyes containing fluoren-9-ylidene chromophores for efficient dye-sensitized solar cells, A. Baheti, K. R. J. Thomas, C.-P.Lee, C.-T. Li, and K.-C. Ho, J. Mater. Chem. A, 2014, 2, 5766-5779.
  30. Organic Dyes Containing Fluorene Decorated with Imidazole Units for Dye-Sensitized Solar Cells, D. Kumar, K. R. J. Thomas, C.-P.Lee and K.-C. Ho, J. Org. Chem., 2014, 79, 3159–3172.
  31. Selective naked-eye cyanide detection in aqueous media using a carbazole-derived fluorescent dye, R. K. Konidena, K. R. J. Thomas, RSC Adv., 2014, 4, 22902-22910. (DOI: 10.1039/c4ra02636e)
  32. Organic Dyes Containing Carbazole as Donor and π-Linker: Optical, Electrochemical, and Photovoltaic Properties, A. Venkateswararao, K. R. J. Thomas, C.-P.Lee, C.-T. Li, and K.-C. Ho, ACS Appl. Mater. Interfaces, 2014, 6, 2528-2539.
  33. Synthesis and characterization of polybrominated fluorenes and their conversion to polyphenylated fluorenes and cyclopenta[def]triphenylene, S. Kumar, D. Karthik, K.R.J. Thomas and M. S. Hundal, Tetrahedron Lett., 2014, 55, 1931-1935.
  34. Insights into the Co-sensitizer Adsorption Kinetics for Complementary Organic Dye-sensitized Solar Cells, L.-Y. Lin, M.-H. Yeh, C.-P. Lee, J. Chang, A. Baheti, R. Vittal, K.R.J. Thomas, and K.-C. Ho, J. Power Sources, 2014, 247, 906-914.
  35. Synthesis and characterization of dianchoring organic dyes containing 2,7-diaminofluorene donors as efficient sensitizers for dye-sensitized solar cells, A. Baheti, K. R. J. Thomas, C.-P. Lee, K.-C. Ho, Org. Electron., 2013, 14, 3267-3276.
  36. Pyrenoimidazole-based deep blue emitting materials: Optical, electrochemical and electroluminescent characteristics, Dhirendra Kumar, K. R. Justin Thomas, Ching-Chiao Lin, Jwo-Huei Jou, Chem. Asian J., 2013, 8, 2111-2124.
  37. Synthesis and characterization of organic dyes containing 2,7-disubstituted carbazole π-linker, A. Venkateswararo, K. R. J. Thomas Chuan-Pei Lee and Kuo-Chuan Ho, Tetrahedron Lett., 2013, 54, 3985-3989.