Rajeev Dubey

Biography

  1. Post-Doctoral Research (December 2013–till date): Department of Chemical Engineering, Delft University of Technology, Delft,     Netherlands.
  2. Post-Doctoral Research (June 2013−September 2013): Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland. Supervisor:  Prof. Helge Lemmetyinen
  3. Ph.D. (September 2007−May 2013): Title of the thesis: Synthesis and Function of Photoactive Donor−Acceptor Systems of Bay-Functionalized Perylene   Diimide Dyes in View of 1,7- and 1,6-Regioisomers, Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland. Supervisor:  Prof. Helge Lemmetyinen
  4. Master of Technology (M. Tech.) in Chemical Analysis (2005−2007): Department of Chemistry, Indian Institute of Technology, New Delhi−110 016, India.
  5. Master of Science (M. Sc.) in Chemistry (2002−2004): Institute of Chemical Sciences, Devi Ahilya University, Indore−452 001, India.

Research

My research focus is on developing innovative methods for an easy, robust, and scalable synthesis of bay-functionalized perylene dyes of high purity, which was impossible by the existing conventional procedures. Another important aspect of my research is to achieve a good control on the substitution pattern around the perylene core, so that the opto-electronic properties of these molecules can be tuned precisely. Apart from this, I have also been involved in the design and synthesis of organic chromophores for various applications, such as light harvesting, fluorescence probe, photochemical up-conversion, energy storage, electron donor−bridge−acceptor systems for the investigation of single molecule charge transfer. 

Publications

  1. Substitution Effects on the Photoinduced Charge Transfer Properties of Novel Perylene-3,4,9,10-Tetracarboxylic Acid Derivatives, Damla Inan, Rajeev K. Dubey, Nick Westerveld, Jorrit Bleeker, Wolter F. Jager, and Ferdinand C. Grozema, J. Phys. Chem. A, 2017, 121,  4633–4644.
  2. Synthesis of perylene-3,4,9,10-tetracarboxylic acid derivatives bearing four different substituents at the perylene core, Rajeev K. Dubey, Nick Westerveld, Stephen J. Eustace, Ernst J. R. Sudhölter, Ferdinand C. Grozema, Wolter F. Jager, Org. Lett. 2016, 18, 5648–5651.
  3. Novel derivatives of 1,6,7,12-tetrachloroperylene-3,4,9,10-tetracarboxylic acid: synthesis, electrochemical and optical properties, Rajeev K. Dubey, Nick Westerveld, Ernst J. R. Sudhölter, Ferdinand C. Grozema, Wolter F. Jager, Org. Chem. Front. 2016, 3, 1481–1492.
  4. Tunable and highly efficient light-harvesting antenna systems based on 1,7-Perylene-3,4,9,10-tetracarboxylic acid derivatives, Rajeev K. Dubey, Damla Inan, Ernst J.R. Sudhölter, Ferdinand C. Grozema, and Wolter F. Jager, Chem. Sci. 2016, 7, 3517–3532.
  5. Fluorescent PET probes based on perylene-3,4,9,10-tetracarboxylic tetraesters, Rajeev K. Dubey, Gergely Knorr, Nick Westerveld, and Wolter F. Jager, Org. Biomol. Chem. 2016, 14, 1564–1568.
  6. Facile synthesis of pure 1,6,7,12-tetrachloroperylene-3,4,9,10-tetracarboxy bisanhydride and bisimide, Rajeev K. Dubey, Nick Westerveld, Ferdinand C. Grozema, Ernst J. R. Sudhölter, Wolter F. Jager, Org. Lett. 2015, 17, 1882–1885.
  7. Synthesis of regioisomerically pure 1,7-dibromoperylene-3,4,9,10-tetracarboxylic acid derivatives, Sanchita Sengupta, Rajeev K. Dubey, Rob W. M. Hoek, Sjoerd P. P. van Eeden, D. Deniz Dunbas, Ferdinand C. Grozema, Ernst J. R. Sudhölter, Wolter F. Jager, J. Org. Chem. 2014, 79, 6655−6662.
  8. Charge-transfer dynamics in poly(3-hexylthiophene): Perylenediimide-C60 blend films studied by ultrafast transient absorption, Kimmo M. Kaunisto, Paola Vivo, Rajeev K. Dubey, Vladimir I. Chukharev, Alexander Efimov, Nikolai V. Tkachenko, Helge Lemmetyinen, J. Phys. Chem. C 2014, 118, 10625−10630.
  9. Dipyrrolidinyl-substituted perylene diimide as additive for poly(3-hexylthiophene): [6,6]-Phenyl C61 butyric acid methylester bulk-heterojunction blends, Paola Vivo, Rajeev K. Dubey, Elina Lehtonen, Hannele Kivistö, Tomi Vuorinen, Helge Lemmetyinen, Thin Solid Films 2013, 548, 398−405.
  10. Excited-State Interaction of Red and Green Perylene Diimide Dyes with Ru(II) Polypyridine Complex, Rajeev K. Dubey, Marja Niemi, Kimmo Kaunisto, Kati Stranius, Alexander Efimov, Nikolai V. Tkachenko,  Helge Lemmetyinen, Inorg. Chem. 2013, 52, 9761−9773.
  11. Direct Evidences of Significantly Different Chemical Behavior and Excited-State Dynamics of 1,7- and 1,6-Regioisomers of Pyrrolidinyl Substituted Perylene Diimide,Rajeev K. Dubey, Marja Niemi, Kimmo Kaunisto, Alexander Efimov, Nikolai V. Tkachenko,  Helge Lemmetyinen, Chem. Eur. J. 2013, 19, 6791−6806.
  12. 1,7- And 1,6-Regioisomers of Diphenoxy and Dipyrrolidinyl Substituted Perylene Diimides: Synthesis, Separation, Characterization, and Comparison of Electrochemical and Optical Properties, Rajeev K. Dubey, Alexander Efimov, and Helge Lemmetyinen, Chem. Mater. 2011, 23, 778−788.
  13. Close Proximity Dibenzo[a,c]phenazine−Fullerene Dyad: Synthesis and Photoinduced Singlet Energy Transfer,Rajeev K. Dubey, Tatu Kumpulainen, Alexander Efimov, Nikolai V. Tkachenko, Helge Lemmetyinen, Eur. J. Org. Chem. 2010, 3428−3436. 

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