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Name : Shinto Varghese

Department : School of Applied & Interdisciplinary Sciences
Designation : Faculty Fellow
Contact : +91 33 2473 4971 (Ext:1145)
Email : Shinto.Varghese@iacs.res.in



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1. Marie Curie Intra European Fellowship, European Research Council (2014).

2. Marie Curie Amarout Research Fellowship, Co-Funded by  European Research Council (2011)

3.  Awarded the best poster prize at ‘11th Chemical Research Society of India CRSI)’ National Symposium in Chemistry held at NCL Pune 6-8, February, 2009.

4.  Awarded the best poster prize at ‘International conference on functional materials held at IIT Madras, Chennai, 27-29, November, 2008. 

 

RESEARCH GROUP


Academic Profile

1. Scientist D, Technical Research Center 2017-2021

2. Research Associate -II (2017) : Center for Nano and Soft Mater Science (CeNS), Bangalore, India 

3.Marie Curie Intra European Fellow (2014-2016) : School of Physics and Astronomy, University of St-Andrews, UK

4. Marie Curie Amarout Post-Doctoral Research Fellow (2011-2014) : Madrid Institute for Advanced Studies in nanoscience, (IMDEA Nanoscience), Madrid, Spain

5.Ph. D. (2005-2011) -  National Institute for Interdisciplinary Science and Technology (NIIST), CSIR / University of Kerala, Kerala, India.  


Group

Prabhat Majumdar

SRF
M.Sc.Chemistry
Photophysics of π-Conjugated Materials
Room No. C-320A Centenary Building, IACS
trcpm@iacs.res.in
9547413948
Madhubrata Ghora

JRF
M.Sc.Chemistry
Interaction Engineering and Material Properties
Synthesis and Photophysics of TADF Materials
Room No. 60 Mainbuilding Building, IACS
aismg2060@iacs.res.in
8336021042
Ranjit_Manna

Int-Ph.D.(JRF)
M.Sc.Chemistry
Computational_Chemistry-(Excited_States)
intrkm@iacs.res.in
8420814137

 



Publication

Publications

 

37. Luminescence in Crystalline Organic Materials: From Molecules to Molecular Solids, J. Gierschner, J. Shi, B. Milián Medina, D. Roca Sanjuán, S. Varghese, S. . Park Adv.Optical Mater.  2021, 9, 2002251.

36.  Turn-On Solid State Luminescence by Solvent-Induced Modification of Intermolecular Interactions P.  Majumdar, M.  Ghora,  R.  Wannemacher,  J.  Gierschner, S. Varghese  J. Mater Chem. C 2020 2020, 8, 15742-15750.

35. Enabling Control over Mechanical Conformity and Luminescence in Molecular Crystals: Interaction Engineering in Action, M. Ghora, P. Majumdar, M. Anas, S. Varghese Chem. A European J. (Just Accepted Section), doi.org/10.1002/chem.202003311

34.  Tuning Solid‐State Luminescence in Conjugated Organic Materials: Control of Excitonic and Excimeric Contributions through π Stacking and Halogen Bond Driven Self‐Assembly, P. Majumdar, F. Tharammal, J. Gierschner, S. Varghese ChemPhysChem 2020, 21, 616–624

33. Supramolecular Nanowire from an Acceptor-Donor-Acceptor Conjugated Chromophore, S. Chakraborty, S. Varghese, S. Ghosh, Chem. Eur.J.2019, 25,16725 –16731.

32. Organobase Triggered Controlled Supramolecular Ring Opening Polymerization and 2D Assembly, A Chakraborty, G Ghosh, DS Pal, S Varghese, S Ghosh,  Chem. Sci., 2019, 10, 7345-7351.

31.Crossed 2D versus Slipped 1D π-Stacking in Polymorphs of Crystalline Organic Thin Films: Impact on the Electronic and Optical Response,, M. J. Aliaga Gosalvez, N. Demitri, M. Dohr, J. C. Roldao, S. K. Park, S. Y. Oh, S. Varghese, S. Y. Park, Y. Olivier, B. Miliánâ€ÂMedina, R. Resel, J. Gierschner, Adv.OpticalMater.2019, 7, 1900749.

30. Highly Bluish-White Light Emissive and Redox Active Conjugated Poly-N-Phenyl Anthranilic Acid Polymer Fluoroprobe for Analytical Sensing K. R. Das, M. J. Antony, S. Varghese, Polymer, 2019, 181, 121747.

29. Near-Infrared Fluorescence of Silicon Phthalocyanine Carboxylate Esters, A. K. Pal, Shinto Varghese, D. B. Cordes, A. M. Z. Slawin, I. D.W. Samuel, E. Zysman-Colman, Sci. Rep2017, 7, 12282.

28. On the Solid State Luminescence Enhancement in π-Conjugated Materials: Unraveling the Mechanism beyond the Framework of AIE/AIEE, J. Shi, L. E. A. Suarez, S.-J. Yoon, Shinto Varghese, C. Serpa, S. Y. Park, L. Lüer, D. R. Sanjuán, B. Milián-Medina, J. Gierschner, J.  Phys. Chem. C, 2017, 21, 23166.

27. Molecular-scale shear response of the organic semiconductor β-DBDCS (100) surface, R. Álvarez-Asencio, J. S. Moreno-Ramírez, C. Pimentel, S. Casado, M. Matta, J. Gierschner, L. Muccioli, S.-J. Yoon, Shinto Varghese, S. Y. Park, E. Gnecco, C. M. Pina, Phys. Rev. B, 2017, 96, 115422.

26. Self-Assembling and Luminescent Properties of Chiral Bis-oxadiazole Derivatives in Solution and Liquid CrystallinePhases, A.  Sivadas, D. S. S. Rao, N. S. S. Kumar, D. Prabhu, Shinto  Varghese, C. Ramachandran, R. Ongungal, K. S. Prasad, S. Das, J. Phys. Chem, B. 2017, 121, 1922.

25. Highly Light-Sensitive Luminescent Cyanostilbene Flexible Dimers. M. M. Abadia, Shinto Varghese, P. Romero, J. Gierschner, R. Gimenez, M. B. Ros, Adv. Opt Mater, 2017, 5, 1600860.

24. Polymorphism and Amplified Spontaneous Emission in Dicyano-Distyrylbenzene Derivative with Multiple Trifluoromethyl Substituents: Intermolecular Interactions in Play, Shinto Varghese, S. K. Park, S. Casado, R. Resel, R. Wannemacher, L. Lüer, S. Y. Park, J.Gierschner, Adv. Funct. Mater. 2016, 26, 2349-2356.

23. Solution-processable silicon phthalocyanines in electroluminescent and photovoltaic devices, E. Zysman-Colman, S. S. Ghosh, G. Xie, S. Varghese, M. Chowdhury, N. Sharma, D. B. Cordes, A. M. Z. Slawin, I. Samuel ACS Appl. Mater. & Interfaces, 2016, 8, 9247-9253.

22. Sub-nanometer Resolution of an Organic Semiconductor Crystal Surface Using Friction Force Microscopy in Water, C. Pimentel, Shinto Varghese, S.-J. Yoon, S. Park, J.Gierschner, E.Gnecco, C. Pina, J. Phys.: Condens. Matter, 2016, 28, 134002.

21. Organic Single Crystal Lasers: A Materials View, J. Gierschner, Shinto Varghese, S. Y. Park

Adv. Opt. Mater. 2016, 4 , 348-364.

20. Multi-responsive luminescent dicyanodistyrylbenzenes and their photochemistry in solution and in bulk, M. Martinez-Abadia, Shinto Varghese, R. Gimenez, M. B. Ros, J. Mater. Chem. C 2016, 4, 2886-2893

19. Excited State Features and Dynamics in a Distyrylbenzene-Based Mixed Stack Donor−Acceptor Co-crystal with Luminescent Charge Transfer Characteristics, M. Wykes, S. K. Park, S. Bhattacharyya, Shinto Varghese, J. E. Kwon, D. R. Whang, I. Cho, R. Wannemacher, L. Lüer, S. Y. Park, J. Gierschner, J. Phys. Chem. Lett. 2015, 6, 3682.

18. Green Phosphorescence and Electroluminescence of Sulfur Pentafluoride-Functionalized Cationic Iridium (III) Complexes, N. M. Shavaleev, G. Xie, Shinto Varghese, D. B. Cordes, A. M. Z.  Slawin, C. Momblona,  E. Ortí, H. J. Bolink, I. D. W. Samuel, E. Zysman-Colman, Inorg. Chem. 2015, 54, 5907.

17. Bent-core liquid crystalline cyanostilbenes: fluorescence switching and thermochromismM. Martínez-Abadía, Shinto Varghese, B. Milián-Medina, J. Gierschner, R. Giménez, M. B. Ros, Phys. Chem. Chem.Phys. 2015, 17, 11715.

16. Orthogonal Resonator Modes and Low Lasing Threshold in Highly Emissive Distyrylbenzene-Based Molecular Crystals, Shinto Varghese, S.-Jun Yoon, S.Casado, R. C. Fischer, R.Wannemacher, S. Y. Park,J.Gierschner, Adv. Optical. Mater.  2014, 2, 542.

15. Supergelation via Purely Aromatic π-π Driven Self-Assembly of Pseudo DiscoticOxadiazole Mesogens, A. P. Sivadas, N. S. Saleesh Kumar, D. D. Prabhu, Shinto Varghese, S. K. Prasad, D. S. Shankar Rao, S. Das, J. Am. Chem. Soc. 2014, 136, 5416.

14.Stimulated Emission Properties of Sterically Modified Distyrylbenzene-Based H‑Aggregate Single Crystals, Shinto Varghese, S. K. Park, S. Casado, R. C. Fischer, R. Resel, B. Milian-Medina, R.Wannemacher, S. Y. Park, J.Gierschner, J. Phys. Chem. Lett. 2013, 4, 1597.

13. Tailor-Made Highly Luminescent and Ambipolar Transporting Organic Mixed-Stacked Charge-Transfer Crystals: a Novel Approach for Optoelectronic Devices, S. K. Park, Shinto Varghese, J. H. Kim, S.-J. Yoon, B.-K. An, J.Gierschner, S. Y. Park, J. Am. Chem. Soc. 2013,135, 4757.

12. Color-Tuned, Highly Emissive Dicyanodistyrylbenzene Single Crystals: Manipulating Intermolecular Stacking Interactions for Spontaneous and Stimulated Emission, S.-J. Yoon, Shinto Varghese, S. K. Park, R.Wannemacher, J. Gierschner and S. Y. Park, Adv. Opt. Mater.2013, 1,232.

11. Stimulated Resonance Raman Scattering and Lasing Oscillation in Highly Emissive Distyrylbenzene Based Molecular Crystals, Shinto Varghese, S.-J. Yoon, E. M. Calzado, S.Casado, P. G. Boj,M. A. Díaz-García, R.Resel, R. Fischer, B.Milián-Medina,R.Wannemacher, S. Y. Park, and J.Gierschner, Adv. Mater2012, 24, 6473.

10. Trigonal 1, 3, 4-Oxadiazole Based Blue Emitting Liquid Crystals and Gels, D. D. Prabhu, N. S. S. Kumar, A. P. Sivadas, Shinto Varghese and S. Das, J. Phys. Chem. B, 2012, 116, 13071.

9. Photoresponsive Soft Materials: Synthesis and Photophysical Studies of a Stilbene-Based diblock Copolymer,S. Menon, R.Thekkayil, Shinto Varghese and S. Das, Journal of Polymer Science Part A: Polymer Chemistry2011, 49, 5063.

8. Excited State Switching by Per-Fluorination of para-Oligophenylenes.  B. Milián-Medina, Shinto Varghese, R. Ragni, H. Boerner, E. Ortí, G. M. Farinola, J. Gierschner, J. Chem. Phys2011, 135, 124509.

7. Role of Molecular Packing in Determining Solid-State Optical Properties of π-Conjugated Materials.(With Cover art), Shinto Varghese and S. Das, J. Phys. Chem. Lett.20112, 863.

6. Butadiene Based Photoresponsive Soft Materials, (With Cover art), S. Das, Shinto Varghese, N. S. S. Kumar, Langmuir2010,26, 1598.

5. Correlation between Solid-State Photophysical Properties and Molecular Packing in   a Series of Indane-1, 3-dione Containing Butadiene Derivatives. N. S. S. Kumar, Shinto Varghese, C. H. Suresh, N. P. Rath, S. Das, J. Phys. Chem. C2009113, 11927.

4. The Influence of Crystal Packing on the Solid State Fluorescence Behavior of Alkyloxy Substituted Phenyleneethynylenes. R. Thomas, Shinto Varghese, G. U. Kulkarni, J. Mater. Chem2009, 19, 4401.

3. Formation of Highly Luminescent Supramolecular Architectures Possessing Columnar Order from OctupolarOxadiazole Derivatives: Hierarchical Self-Assembly from Nanospheres to    Fibrous Gels, Shinto VargheseN. S. S. Kumar, A. Krishna, D. S. S. Rao, S. K. Prasad, and S. Das, Adv. Funct. Mater2009, 19, 2064.

2. Solid State Optical Properties of 4-Alkoxy-Pyridine Butadiene Derivatives: Reversible Thermal Switching of Luminescence,         N. S. S. Kumar, Shinto. Varghese, N. P. Rath, Suresh Das, J. Phys. Chem.2008,112, 8429.

1. Hierarchical Self-Assembly into Photoresponsive Vesicles and Gels by Donor-Acceptor Substituted Butadiene Amphiphiles, N. S. S. Kumar, Shinto. Varghese, G. Narayan, Suresh Das, Angew. Chem. Int. Ed200645, 6317.

 


Teaching


Core Theory 

Photonics - (AIS 4102/PHD 129)

Organic Optoelectronics  - (AIS5104/PHD 115)(AIS 5104/PHD 115)

Energy Enviornmntal II (On Shared basis with Dr. Anuja Dutta) -(AIS 5204)

Practicals for Integrated Ph. D. 

1. Photonic Crystals from polymer nanomaterials.

2. Association constant determined by quenching of fluorescenc


Open Positions

We are currently looking for motivated researchers to work in the field of Organic Optoelectronics 

Who can Apply:

Researchers who dare to go out of box from the boundaries of conventional disciplines and its traditions can apply.

You are highly welcomed, if you are willing to dream, believe and execute innovative ideas to solve the interdisciplinary problems in the field of Organic Optoelectronics.  Especially in the field of Organic Light Emitting Field Effect Transistors and Solid-State Lasers.

The research area is demanding truly interdisciplinary skills and prospectus researchers with Masters in Chemistry, Physics or Materials Science can apply. Minimum qualification required is CSIR, NET or GATE

Current Vacancies:

Materials Development and Processing Segment: Prospectus researchers with Masters in Chemistry and Materials Science can apply.  1 Vacancy

 

Device and Optoelectronic Properties: Prospectus researchers with Masters in Physics, Chemistry (Physical Chemistry), Electronics and Materials Science can apply.  2 Vacancies.

 

Research Associates: We will support your application for the NPDF or any other appropriate fellowships, if your CV suites to the requirements of the group. Please send the resume to my e-mail.


Honors/Awards


1. Marie Curie Intra European Fellowship, European Research Council (2014).

2. Marie Curie Amarout Research Fellowship, Co-Funded by  European Research Council (2011)

3.  Awarded the best poster prize at ‘11th Chemical Research Society of India CRSI)’ National Symposium in Chemistry held at NCL Pune 6-8, February, 2009.

4.  Awarded the best poster prize at ‘International conference on functional materials held at IIT Madras, Chennai, 27-29, November, 2008.


Contact Us


Dr. Shinto Varghese
School of Applied and Interdisciplinary Sciences
Indian Association for the Cultivation of Science
Jadavpur, Kolkata 700032, India
 
Office: Centenary Building Room No 324
Phone: (0091)-(33)-24734971 Ext-1145
Mobile . (0091)-7907868272, (0091)-8281237934.
E-mail - trcsv@iacs.res.in, shintokannampuzha@gmail.com
 


Group News


Congratulations Madhubrata Ghora!!!!!!    for the ACS Omega oral presentation prize at SAIS Symposium.

 

Ranjit Manna Joined the group - Welcome Ranjit to the group ( October 2020)

 

RESEARCH GROUP