Dr. Virendra Kumar Rai

About

More than 17 year hands on research and development (R&D) experience in designing, synthesis, purification, characterizations and development of highly efficient luminescent materials for organic light-emitting diodes (OLEDs) application. Development of novel materials based on new core-ligands, π-conjugated moieties and polymers for OLEDs device application. Expert in multi-step luminescent organometallic complexes synthesis and techniques including handling of air, moisture and photo-sensitive reactions, organometallic reagents and routine organic transformations from milligram to multi-gram scale. Experience in the working and interpreting spectroscopic methods and single-crystal X-ray diffraction analysis for the elucidation of the structures of various chemical compounds. Expert in fabrication of highly efficient OLEDs devices using different thin-film formation methods and their electrical and optical characterizations. My long-term research interests are studying the structure-property relationships to improve the performances and efficiencies of OLEDs for full color displays.

Employment

• Samsung Advanced Institute of Technology Principal Scientist
  2013 - Present
• RIKEN Post-doctoral Fellow
  2011 - 2013
• National Physical Laboratory Project Assistant
  2005 - 2008

Education

• RIKEN D.Sc.
  2008 - 2011
• Veer Bahadur Singh Purvanchal University M.Sc.
  2002 - 2004
• Veer Bahadur Singh Purvanchal University B.Sc.
  1999 - 2002

Projects & Funding

Projects & funding information is unavailable.

Publications (24)

• Protecting Benzylic C-H Bonds by Deuteration Doubles the Operational Lifetime of Deep‐Blue Ir‐Phenylimidazole Dopants in Phosphorescent OLEDs
  Advanced Optical Materials 2021 DOI: 10.1002/adom.202100630
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• Substituent effect on the electroluminescence efficiency of amidinate-ligated bis(pyridylphenyl) iridium(iii) complexes
  J. Mater. Chem. C 2014 DOI: 10.1039/c3tc32553a
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• Guanidinate ligated iridium(iii) complexes with various cyclometalated ligands: synthesis, structure, and highly efficient electrophosphorescent properties with a wide range of emission colours
  J. Mater. Chem. C 2013 DOI: 10.1039/c2tc00242f
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• Bis-Cyclometalated Iridium(III) Complexes Bearing Ancillary Guanidinate Ligands. Synthesis, Structure, and Highly Efficient Electroluminescence
  Inorganic Chemistry 2012 DOI: 10.1021/ic201217a
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• Synthesis, structure and efficient electroluminescence of a heteroleptic dipyridylamido/bis(pyridylphenyl)iridium(iii) complex
  Chemical Communications 2011 DOI: 10.1039/c1cc10213c
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• White electroluminescence from stacked organic light emitting diode
  Synthetic Metals 2010 DOI: 10.1016/j.synthmet.2010.01.016
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• White organic electroluminescence from fluorescent bis (2-(2-hydroxyphenyl) benzoxazolate)zinc doped with phosphorescent material
  Journal of Luminescence 2010 DOI: 10.1016/j.jlumin.2009.08.016
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• Studies on organic light-emitting diodes based on rubrene-doped zinc quinolate
  physica status solidi (a) 2009 DOI: 10.1002/pssa.200824516
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• White organic light-emitting diodes based on blue fluorescent bis(2-(2-hydroxyphenyl)benzoxazolate)zinc [Zn(hpb)2] doped with DCM dye
  Synthetic Metals 2009 DOI: 10.1016/j.synthmet.2008.09.017
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• Fabrication of efficient and stable white organic light emitting diodes (WOLEDs) based on host-guest system
  The XXIX General Assembly of the International Union on Redio Sciences (URSI), Chicago, USA. 2008
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