Dr. Sreekanth J. Varma

 
Dr. Sreekanth J. Varma
M.Sc., Ph.D (Assistant Professor)
Assistant Professor (Academic Level 12), PG Department of Physics and Research Centre, Sanatana Dharma College, Alappuzha-688003, Kerala

Dr. Sreekanth J. Varma is an Assistant Professor (Academic Level 12) in the Department of Physics, Sanatana Dharma College. His research areas include Materials for Energy Harvesting and Storage, (Supercapacitors, Photovoltaics) Organic Electronics, Perovskites, 2D materials, Carbon nanomaterials and Conducting polymers. He was awarded the prestigious Raman PDF (NanoScience Technology Centre, University of Central Florida) in 2016 and Dr.D.S.Kothari postdoctoral fellowship in 2013. He has research collaborations with many institutions of national and international status, including the Department of Physics, CUSAT, Raman Research Institute (Bangalore), NIT Calicut, IIT Kanpur, and Sunway University (Malaysia). He is the author of six international book chapters, more than 39 international peer-reviewed journal publications, co-inventor of a patent, and a reviewer for a number of reputed international journals. He is an approved research guide in physics affiliated with the University of Kerala.

Academic Qualifications
M.Sc. Physics
Maharaja’s College, Ernakulam, Kerala – Mahatma Gandhi University, Kerala, India2002-2004
N.S.S College, Cherthala, Kerala, India – Kerala University, Kerala, India1999-2002

B.Sc. Physics

Research Degree
PhD
Department of Physics, Cochin University of Science and Technology, Kochi 682022, India2012

PhD thesis entitled “Investigations on polyaniline based systems for technologically important applications and some novel polymers as prospective candidates for fabricating polymer light emitting diodes”

Postdoc
NanoScience Technology Center, University of Central Florida, Orlando, FL2016
Areas of Interest
  • Energy Storage (Supercapacitors) and Integrated Wearable Devices
  • Organic/Inorganic Perovskite Hybrid Solar cells & LEDs
  • Organic/polymer photovoltaics & LEDs
  • Conducting Polymers
  • Nanomaterials (Graphene, 2D transition metal dichalcogenides and Quantum dots)
Awards , Scholarships

1.Raman PDF – 2016

2.Dr.D.S.Kothari Postdoctoral Fellowship – 2013


Total Experience

11 years

Teaching at SDCollege Since

2013

List of Courses Handled

PG

  1. Semester I, PH 211 Classical Mechanics
  2. Semester II, PH 221 Modern Optics and Electromagnetic Theory
  3. Semester III, PH 232 Atomic and Molecular Spectroscopy
  4. Semester IV, PH 242 Nuclear and Particle Physics
  5. Semester IV, PH 241 Condensed Matter Physics

UG Main

  1. Semester VI, PY 1641 Solid State Physics
  2. Semester VI, PY 1642 Nuclear & Particle Physics
  3. Semester VI, PY 1661.2 Space Science
  4. Semester V, PY 1541 Quantum Mechanics
  5. Semester V, PY 1542 Statistical Physics, Research Methodology and Disaster Management
  6. Semester V, PY 1551.2 Astronomy and Astrophysics (Open Course)
  7. Semester IV, PY 1441 Classical & Relativistic Mechanics
  8. Semester III, PY 1341 Electrodynamics
  9. Semester II, PY 1241 Heat & Thermodynamics
  10. Semester I, PY 1141 Basic Mechanics & Properties of Matter

UG, Complementary Physics

  1. Semester IV (Chemistry Main), PY 1431.2 Atomic Physics, Quantum Mechanics and Electronics
  2. Semester III (Chemistry Main), PY 1331.2 Optics, Magnetism & Electricity
  3. Semester II (Chemistry Main), PY 1231.2 Thermal Physics
  4. Semester I (Chemistry Main), PY 1131.2 Rotational Dynamics & Properties of Matter
  5. Semester IV (Mathematics Main), PY 1431.1 Modern Physics & Electronics
  6. Semester III (Mathematics Main), PY 1331.1 Optics, Magnetism & Electricity
  7. Semester II (Mathematics Main), PY 1231.1 Thermal Physics and Statistical Mechanics
  8. Semester I (Mathematics Main), PY 1131.1 Mechanics & Properties of Matter
Administrative Responsibilities
  • Member, Academic Committee, Sreenarayanaguru Open University, Kollam (2021-till date)
  • Member, NIRF, SD College, Alappuzha (2023-25)
  • Nodal Officer, NIRF, SD College, Alappuzha (2021-23)
  • Nodal Officer, ARIIA, SD College, Alappuzha (2021-23)
  • Assistant Coordinator, Website Committee, SD College, Alappuzha (2021-23)
  • Coordinator, KSCSTE-SARD, Department of Physics (research funding KSCSTE, Govt. of Kerala); 2017-2022
  • Convener, Research Committee, Department of Physics, S.D.College, Alappuzha
  • Coordinator, DST-FIST (2023-28)
  • Coordinator, Department level IQAC (DIQAC), Physics, S.D. College
  • Technical Lead, Innovation Entrepreneur Development Centre (IEDC), SD College
  • Member, Project Implementation Group, DST-FIST (research funding DST, Govt. of India), S.D.College, Alappuzha; 2015-2020
  • Mentor, Walk-with-a-scholar programme (an initiative by Govt. of Kerala) - 2014-2016 and 2019-2021
  • Member, Research Committee, S.D.College, Alappuzha (2019-till date)
  • Convener, Research Committee, S.D.College, Alappuzha (2014-16)
  • Member, RUSA Research Network Group (RRNG, Govt. of Kerala), S.D.College, Alappuzha
Conferences/Seminars/Webinars - Organized
  1. Celebrating the 100th Anniversary of Bohr Atom (1 day Seminar), S.D.College, Alappuzha
  2. Invited lecture (International) by Prof.Jayan Thomas (NSTC, UCF, FL, USA) at S.D.College, Alappuzha
  3. Advanced Instrumentation Techniques Workshop on Cyclic Voltammetry, S.D.College, Alappuzha
  4. National Science Day Celebrations 2020 (SCIEN-FEST 2020), S.D.College, Alappuzha, 26-27 February 2020
  5. One-day National Webinar (Light Meets Matter), S.D.College, Alappuzha, 28 November 2020
  6. Webinar (International): MXene Electrodes for Supercapacitors: Syntheses and Challenges by Dr.Jayesh Cherusseri (Sunway University, Malaysia), 22 Oct 2022
  7. An Orientation Programme on Research and Publication Ethics by Dr.P.K Suresh Kumar (University of Kerala), 03 Nov 2022
  8. Workshop & Hands-on Training: Raman Spectrometer, 05 Jan 2023
  9. Meet & Greet the Scholars as part of the National Science Day Celebrations 2023, 02 Talks & Lab Visit, 28 Feb 2023
  10. Invited Talk by Dr.Jijo P Ulahannan (Govt. College, Kasaragod), Learning Physics in the Times of Industry 4.0, 16 Oct 2023
Invited talks/Session chair/Resource person

Invited Talks:

• “Organic Electronics: In the Perspective of Sensors and Optoelectronic Devices”, in Recent Trends in MEMS Sensors and Devices on the 11th of October 2013 as part of Continuing Education Programme of DRDO at Naval Physical and Oceanographic Laboratory (NPOL)

• “Spin coating technology”, in a workshop on Virtual Instrumentation and Advanced Experimental techniques on the 12th of November 2013 at Government College, Nattakam, Kottayam

• “Graphene as a Prospective Material for Organic Photovoltaic Applications”, in the National Seminar on Recent Trends in Supramolecular Assembly and Nanomaterials during the 11th and 12th of December 2013 at MSM College, Kayamkulam

• “Polymer Research: The evolution from passive insulation to active light emission”, in the National seminar on Current Trends in Material Science during the 13th and 14th of August 2014 at Aquinas College, Edakochi


Session Chair:

• International Conference on Emerging Trends in Science, Engineering and Technology 2020, 15 Dec 2020

• Dr.Annie Joseph Vallamattom Memorial State Level Project Presentation Competition 2023-24

Publications
Research Journal Publications

1. Anandhu Thejas Prasannakumar, Rohith R, Manju V, Ranjini R. Mohan, Sreekanth J.Varma*, "Graphene nanoflake-self stabilized dispersion polymerized PANI hybrids as efficient, binder-free electrode materials for high-performance flexible symmetric supercapacitors", Journal of Electroanalytical Chemistry (2024) 952, 117952 (Impact factor: 4.5)

2. Anandhu Thejas Prasannakumar, Rohith R, Manju V, Ranjini R. Mohan, Sreekanth J.Varma*, "High energy density electrodes based on solution-intercalated, selfstabilised dispersion polymerised polyaniline/MWCNT hybrids for supercapacitors", Journal of Energy Storage (2024) 76,109732 (Impact factor: 9.4)

3. Rohith R, Anandhu Thejas Prasannakumar, Manju V, Ranjini R. Mohan, Sreekanth J.Varma*, "Flexible, Symmetric Supercapacitor using Self-stabilized DispersionPolymerised Polyaniline/ V2O5 Hybrid Electrodes", Chemical Engineering Journal (2023) 467, 143499 (Impact factor: 16.744)

4. Anandhu T.P., Ranjini R. Mohan, Rohith R., Manju V., Dr. Sreekanth J.Varma*, "Progress in Conducting Polymer-Based Electrospun fibers for Supercapacitor Applications: A Review", ChemistrySelect (2023) 8, e202203564 (Impact factor: 2.307)

5. Ranjini R.Mohan, Anandhu T.P., Joseph John, Sreekanth J.Varma*, S Jayalekshmi*, "Electromagnetic shielding performance of polyaniline-nanorod/graphene-nanoflake Page | 3 hybrid films in the S- and X-bands", New Journal of Chemistry (2023) 47, 2565-2574 (Impact factor: 3.925)

6. Anandhu T.P., Beryl C., Rohith R., U. Reeta Felscia, Reji Philip*, Sreekanth J.Varma*, ACS Applied Optical Materials (2023) 1, 3, 660-668 (Front Cover)

7. Manju V, Rohith R, Anandhu T. P, Bhavija B.V, Sreekanth J.Varma*, Dielectric and Electrochemical Performance of Rhombohedral Lanthanum Manganite Perovskite Nanostructures, New Journal of Chemistry (2022) 46, 19874-19887 (Impact factor: 3.925)

8. Rohith. R, Anandhu Thejas Prasannakumar, Dr. Ranjini R. Mohan, Manju V, Dr. Sreekanth J.Varma*, Advances in 2D Molybdenum Disulfide-Based Functional Materials for Supercapacitor Applications, Chemistry Select (2022) 7, e202203068 (Impact factor: 2.307)

9. Anandhu T.P., Rohith R., Jayesh Cherusseri, Ranjini R.Mohan, Sreekanth J.Varma*, "High Areal Capacitance and Long Cycling Stability in Asymmetric Supercapacitors Using Binder-Free, Hierarchical Nanostructured Ni3S2/MnO2 Hybrid Electrodes", Journal of Energy Storage (2022) 55, 105723 (Impact factor: 9.4)

10. Anandhu T.P., Beryl C., Rohith R., U. Reeta Felscia, Reji Philip*, Sreekanth J.Varma*, "Hematene Nanoflakes: A non-van der Waals material with superior nonlinear optical properties", ChemRxiv (2022) DOI: 10.26434/chemrxiv-2022-fftqk *Corresponding author

11. Ranjini R.Mohan, Abhilash. A, Manoj Mani, Sreekanth J.Varma*, S.Jayalekshmi*, "Nano CuO-embedded polyaniline films as efficient broadband electromagnetic shields" , Materials Chemistry and Physics (2022) 290, 126647 (Impact factor: 4.778) *Corresponding authors

12. Anandhu T.P., Ranjini R.Mohan, Jayesh Cherusseri, Rohith R., Sreekanth J.Varma, "High areal capacitance and enhanced cycling stability of binder-free, pristine polyaniline supercapacitor using hydroquinone as a redox additive", Electrochimica Acta, (2022) 425, 140740 (Impact factor: 7.337)

13. Jayesh Cherusseri, Claire Mary Savio, Mohammad Khalid, Vishal Chaudhary, Arshid Numan, Sreekanth J.Varma, Amrutha Menon and Ajeet Kaushik, "SARS-CoV-2-onChip for Long COVID Management", Biosensors (2022) 12, 890 (Impact factor: 5.743)

14. Ramakrishnan Jayakrishnan, Ramesh Chandran, Aruna R. Raj, Sreekanth J.Varma, "Copper-doped cesium lead bromide colloidal nano-platelets", Journal of Nanoparticle Research (2021) 23, 210 (Impact factor: 2.533)

15. Aruna Raj, Sreekanth J.Varma, R.Jayakrishnan, "Self-assembled methylammonium lead bromide thin films with blue photoluminescence", Applied Nanoscience (2021) 11, 2095-2102 (Impact factor: 3.869) Page | 4

16. Ligi ML., Abhilash A., Sreekanth J.Varma et al., "Light emitting, segmented block copolymers containing distyrylbenzene blocks connected through α,ωnonamethylenedioxy chain spacer for applications in polymer light emitting diodes", Dyes and Pigments (2021) 184, 108729 (Impact factor: 5.122)

17. Jayesh C., Sreekanth J.Varma* et al., “Synthesis of air-stable two-dimensional nanoplatelets of Ruddlesden-Popper Organic-inorganic perovskites”, Nanoscale, (2020) 12, 10072-10081 (*Equal contribution) (Impact factor: 8.307)

18. Sreekanth J.Varma, Jayesh C. et al., “Quantum dots of two-dimensional RuddlesdenPopper organic-inorganic hybrid perovskite with high optical limiting properties”, AIP Advances (2020) 10, 045130. (Impact factor: 1.6)

19. Aruna Raj, R.Jayakrishnan, Sreekanth J.Varma, "Polymer encapsulation as an effective method for enhanced stability in perovskite quantum dots", AIP Conference Proceedings, (2020) 2265, 030148

20. Yang Liu, Sreekanth J.Varma, et al., “Reflux Pretreatment Mediated Sonication: A New Universal Route to obtain 2D Quantum Dots”, Materials Today (2019) 22, 17-24 (Impact factor: 31.041)

21. Ranjini R.Mohan, Sreekanth J.Varma*, S.Jayalekshmi*, "Effective Electromagnetic Shield using Conductive Polyaniline Films", Materials Today Proceedings (2019) 8, 371-378 (* Corresponding author)

22. Sreekanth J.Varma et al., “Fibre-type Solar Cells, Nanogenerators, Batteries and Supercapacitors for Wearable Applications”, Advanced Science (2018) 1800340. (Impact factor: 17.521) (Cover page)

23. Cacie Hart, Avra Kundu, Kowsik Kumar, Sreekanth Varma, Jayan Thomas and Swaminathan Rajaraman, “Rapid Nanofabrication of Nanostructured Interdigitated Electrodes (nIDEs) for Long-Term in vitro Analysis of Human Induced Pluripotent Stem Cell Differentiated Cardiomyocytes”, Biosensors 2018, 8(4), 88. (Impact factor: 5.743)

24. Sreekanth J.Varma et al, “2D TiS2 Layers: A Superior Nonlinear Optical Limiting Material”, Advanced Optical Materials. (2017) 1700713. (Impact factor: 10.05) (Published in the Best of Advanced Optical Materials 2017)

25. Sreekanth J.Varma et al, “Enhanced nonlinear optical limiting in TiS2 dichalcogenide 2D Sheets” in Light Manipulating Organic Materials and Devices IV, Proc. of SPIE Vol. 10360, 103600A (2017)

26. Ranjini R.Mohan*, Sreekanth J.Varma* and Jayalekshmi Sankaran, “Impressive electromagnetic shielding effects exhibited by highly ordered, micrometer thick polyaniline films”, Applied Physics Letters, 108, (2016) 154101 (*Equal contribution) (Impact factor: 3.971)

27. Anand P.B, Shijeesh M.R, Sreekanth J.Varma, S. Jayalekshmi, “Exceptionally crystalline and conducting acid doped Polyaniline (PANI) films by level surface Page | 5 assisted solution casting approach”, Applied Physics Letters, 108, (2016) 161901. (Impact factor: 3.971)

28. Vidya G*, Sreekanth J.Varma*, M.V.Mahesh Kumar, S.Prathapan, S.Jayalekshmi and Rani Joseph, “Semiconducting Thienylene – Biphenylenevinylene Hybrid Polymers: Synthesis, Characterization and Application Prospects in Polymer LEDs”, Dyes and Pigments, 126 (2016) 303-312 (*Equal contribution) (Impact factor: 5.122)

29. Ranjini R.Mohan, Sreekanth J.Varma, Muhammad Faisal and Jayalekshmi S, “Polyaniline/graphene hybrid film as an effective broadband electromagnetic shield”, RSC Advances, 5 (2015) 5917-5923 (Impact factor: 4.036)

30. M. Sajimol Augustine, P.P Jeeju, S.J Varma, P.A Francis Xavier, S. Jayalekshmi, “Enhanced photoluminescence in transparent thin films of polyaniline-zinc oxide nanocomposite prepared from oleic acid modified zinc oxide nanoparticles”, Thin solid Films, 562 (2014) 84-89 (Impact factor: 2.1)

31. Sreekanth J.Varma, Ranjini R.Mohan, Vidya G, S.Jayalekshmi, S.Prathapan, “Effect of Solvents on the Photoluminescence Emission of a Few Novel, Light Emitting, Segmented Block Copolymers and Hybrid Polymers”, AIP Conference Proceedings, 1576 (2014) 171-175

32. S.J.Varma, Jerin George, Jeeju.P.P, S.Jayalekshmi, “Quantum confinement effects in highly conducting, ultrathin Polyaniline films pursued through spectroscopic investigations”, Journal of Luminescence, 132 (2012) 801-805 (Impact factor: 3.6)

33. S.J.Varma, Francis Xavier P.A, Soney Varghese and S.Jayalekshmi, “Synthesis and studies on exceptionally crystalline polyaniline thin films”, Polymer International, 61, (2012) 743–748 (Impact factor: 3.2)

34. S.J.Varma, S.Jayalekshmi, “On the prospects of Polyaniline and Polyaniline/MWNT Composites for possible pressure sensing applications”, Journal of Applied Polymer Science, 117 (2010) 138–142 (Impact factor: 3.0)

35. Pullarkat P Jeeju, Augustine M Sajimol, Vallath G Sreevalsa, Sreekanth J Varma and S.Jayalekshmi, “Size-dependent optical properties of transparent, spin-coated polystyrene/ZnO nanocomposite films”, Polymer International, 60 (2011) 1263–1268 (Impact factor: 3.2)

36. P.P.Jeeju, S.J.Varma, P.A.Francis Xavier, A.M.Sajimol, S.Jayalekshmi, “Novel Polypyrrole films with excellent crystallinity and good thermal stability”, Materials Chemistry and Physics, 134, (2012) 803-808 (Impact factor: 4.6)

37. M.Sajimol Augustine, S.J.Varma, P.A. Francis Xavier and S. Jayalekshmi, “Enhanced photoluminescence in oleic acid modified polyaniline”, Transactions of the Indian Institute of Metals, 64 (2011) 209-212

38. M.Amrithesh, K.P.Chandni, S.Jayalekshmi, Febin Kurian, S.J.Varma, On the interesting optical transitions observed in polyaniline films in the conducting and Page | 6 insulating states, Optoelectronics and Advanced Materials – Rapid Communications, Vol.3, No. 2, February 2009, 149 – 154

39. Sreekanth J.Varma, S.Jayalekshmi, “Carbon Nanotube – Polymer Nanocomposites for Possible Pressure Sensor Applications” Proc. of SPIE Vol. 7037, 703716, (2008)

Books / Chapters

1. S.Jayalekshmi, Sreekanth J.Varma, ‘The Versatile Roles of Graphene in Organic Photovoltaic Device Technology’, in Applied Spectroscopy and the Science of Nanomaterials, Progress in Optical Science and Photonics Volume 2, Springer Singapore, 2015, pp. 223-251

2. Jayesh C, Sreekanth J.Varma*, ‘Electrospun Manganese Oxide-Based Composites as Anodes for Lithium-Ion Batteries’, in Electrospinning for Advanced Energy Storage Applications, Springer Nature International, 2021, Chapter 12, pp 345-372

3. Prasad V.S., Jayesh C, Sreekanth J.Varma*, "Polymer Nanocomposites-Based Solid Electrolytes for Lithium-Ion Batteries‘’, in Polymer and Ceramic Electrolytes for Energy Storage Devices, Vol.1, Taylor & Francis (CRC Press), 2021, Chapter 4 (eISSN 9781003144793)

4. Sreekanth J.Varma* and R.Jayakrishnan, 'Progress in Perovskite Photovoltaics', in Spectroscopy and Characterization of Nanomaterials and Novel Materials: Experiments, Modeling, Simulations, and Applications, Wiley, 2021 (Print ISBN:9783527349371 |Online ISBN:9783527833689) https://doi.org/10.1002/9783527833689.ch13

5. Rohith R., Anandhu T.P, Ranjini R.Mohan, Sreekanth J.Varma*, ‘Supercapacitors: Fundamentals, Working Principle, Classifications, Energy Storage Mechanisms, Nanostructured Electrode and Electrolyte Materials, Promises, Challenges and Future Perspectives’, Chapter 1 in Nanostructured Materials for Energy Storage: Volume II: Supercapacitors, Wiley, 2023 (Accepted)

6. Anandhu T.P., Rohith R., Manju V., Ranjini R. Mohan, Sreekanth J.Varma*, 'Biopolymer-Based Electroactive Materials', Chapter 10 in 'Sustainable Materials in Supercapacitors: New Developments in Energy Storage' Elsevier, 2023 - Under Review

International/National Conferences
  1. Anandhu T. P, Rohith R, Jayesh Cherusseri, Ranjini R. Mohan, Sreekanth J. Varma*, National Seminar on Advanced Materials and Applied Physics 2023 (NSAMAP 2023), Kozhencherry, Kerala, India 12-13 January 2023
  2. Manju V, Bhavija B V, Rohith R, Anandhu T P, Sreekanth J Varma*, Proc. of International Conference on Materials, Properties, Measurements and Applications (ICMPMA 2022), Kollam, Kerala, India 09-13 May 2022, pp. 168
  3. Rohith R, Anandhu T P, Midhun Thomas, Manju V, Sreekanth J Varma*, Proc. of International Conference on Materials, Properties, Measurements and Applications (ICMPMA 2022), Kollam, Kerala, India 09-13 May 2022, pp. 169
  4. Anandhu T.P, Ranjini R Mohan, Jayesh Cherusseri, Rohith R., Sreekanth J Varma*, International Conference - E-SENSOL 2022- Sustainable Energy: Advances and Developments, Mexico, 6-8 July 2022 (Online)
  5. Manju V, Rohith R, Anandhu T. P, b, Sreekanth J. Varma*, International Conference - E-SENSOL 2022- Sustainable Energy: Advances and Developments, Mexico, 6-8 July 2022 (Online)
  6. Anandhu T.P, Ranjini R Mohan, Jayesh Cherusseri, Sreekanth J.Varma*, "Ultra-Light Flexible Polyaniline Films For Supercapacitor Electrode Applications", Proc. Intenational Conference on Nanoscience and Nanotechnology (ICONN 2021), 01-03 February 2021, India
  7.  Aruna Raj, Manju V, R.Jayakrishnan and Sreekanth J.Varma, Proc. of International Conference on Optoelectronics and Nanomaterials for Advanced Technology 2019 (ICONMAT 2019), Kochi
  8. Aruna Raj, Manju V, Chandana S Greeshma S, Athira Gopan, R.Jayakrishnan and Sreekanth J.Varma*, Proc. of National Conference on Recent Advances in Spectroscopy of Advanced Materials 2018, Mavelikkara
  9. R Mohan, Sreekanth J Varma*, S.Jayalekshmi*, “Effective electromagnetic shield using conductive polyaniline films”, Proc. of International Conference on Materials for Energy and Environment (ICMEE 2018) Chennai, 2018
  10. Avra Kundu, Sreekanth Varma, Jayan Thomas, Swaminathan Rajaraman, “Plasmonic Interdigitated Electrodes (Pides) For In Vitro Analysis of Cells”, Proc. of 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences October 22-26, 2017, Savannah, Georgia, USA
  11. Sreekanth J.Varma, “Wearable Technologies”, NanoFest Florida 2017, 28 January 2017, Orlando, Florida, USA
  12. Ranjini R Mohan, Shijeesh MR, Sreekanth J Varma, S.Jayalekshmi, “Carrier-mobility and carrier-concentration studies in semiconducting polymers and hybrids for OFET applications”, Proc. of the Space-Mate Symposium (SMS 2017), 21 December 2017, S.D.College, Alappuzha
  13. Praveen P, Arjun B and Sreekanth J.Varma, “Conducting polymer composite based materials for pressure sensing applications”, National Seminar on Material Science with Special Emphasis on Crystallography, 9-11 September 2015, Govt. College, Nattakam
  14. Ranjini R.Mohan and Sreekanth J.Varma, “Non-linear optical properties of highly conducting polyaniline films prepared via self-stabilized dispersion polymerization”, Proc. of the National Seminar on Nanochemistry – Techniques, Advancement and Applications, 16th October 2015, Alappuzha
  15. Muhammad Faisal and Sreekanth J. Varma, “Fly Ash Incorporated Polyaniline as a High Performance Shield against Electromagnetic Pollution”, Proc. of IC-EEE2015, 4-7th February 2015, Kochi
  16. Muhammad Faisal and Sreekanth J. Varma, “X-band electromagnetic interference shielding of polyaniline/barium ferrite composites”, Proc. of the 27th Kerala Science Congress, 27-29 Jan 2015, Alappuzha
  17. Sreekanth J.Varma, Ranjini R.Mohan, Vidya G, S.Jayalekshmi, S.Prathapan, “Effect of Solvents on the Photoluminescence Emission of a Few Novel, Light Emitting, Segmented Block Copolymers and Hybrid Polymers”, The 2nd International conference on Optoelectronic Materials and Thin films for Advanced Technology (OMTAT 2013), 3rd-5th January, 2013, Kochi, India
  18. S.J.Varma, Francis Xavier and S. Jayalekshmi, “An investigation on the high temperature response of highly conducting polyaniline films” Proc. International conference on Advances in Polymer Technology, Feb. 26-27, 2010, India, Page No. 119
  19. S.J.Varma, et al., “A quest for quantum confinement in highly conducting polyaniline thin films through spectroscopic investigations”, Proc. International conference ICMST held during October 2010 at Thiruvananthapuram
  20. S.J.Varma, S.Jayalekshmi, Proc. International Conference on “Material Science Research and Nanotechnology (ICMSRN 2008)”, 27-29th February 2008, Kodaikanal, Tamilnadu, India, 46, P 153
  21. Sreekanth.J.Varma, Rani Joseph, Honey John, Mani.T.K; PP 17, Proc. National Conference “New Horizons in Theoretical & Experimental Physics (NHTEP 2007)”, October 8-10 (2007), Cochin, India
  22. Sreekanth J.Varma, Ranjini R.Mohan, Manoj.M, “Crystallinity in highly conducting PANI films, synthesized by dispersion polymerization”, Proc.Current Trends in the Fields of Nano Science and Nanotechnology, 13th-14th December 2012, K.K.T.M Govt. College, Kodungallur, Kerala, India
  23. Muhammad Faisal, Sreekanth J Varma, KC Sajjan, and Syed Khasim, “Polyaniline-Stannous Oxide Composites for EMI Shielding and Humidity Sensing Applications”, Proc. of International Union of Materials Research Societies – International Conference in Asia-2013 (IUMRS-ICA-2013) December16-20, 2013, IISC, Bangalore
  24. Muhammad Faisal, Ranjini R. Mohan, Sreekanth J. Varma, KC Sajjan, and Syed Khasim, “Polyaniline-yttrium oxide composites for humidity sensing and microwave shielding/absorbing applications”, 26th Kerala Science Congress, 28-31 January 2014, Wayanad (Accepted)
  25. Muhammad Faisal, Sreekanth J. Varma, KC Sajjan and Syed Khasim, “Polyaniline-Antimony Oxide Composites for EMI Shielding and Pressure Sensing Applications”, Proc. International Conference on Advanced Polymeric Materials (ICAPM 2013), P27, pp 191-192, 2013
  26. K.C.Sajjan, Munammad Faisal, Sreekanth J. Varma, Syed Khasim, “EMW Absorbing Properties of Polyaniline-Chromium Oxide Composites”, Proc. International Conference on Advanced Polymeric Materials (ICAPM 2013), SIL 56, pp 112, 2013
  27. Jubeesh M.K, Ranjini R. Mohan, Sreekanth J.Varma, “Nanostructured polyaniline as a prospective candidate for pressure sensing applications”, Proc.Current Trends in the Fields of Nano Science and Nanotechnology, 13th-14th December 2012, K.K.T.M Govt. College, Kodungallur, Kerala, India
  28. P.B. Anand, Sreekanth J. Varma, S. Jayalekshmi, Structural and electrical characterization of exceptionally crystalline CSA, NSA doped polyaniline thin films, Proc. Fifth International Conference on “ Electroactive Polymers: Materials and Devices”, Nov. 4-9, 2012, Banaras Hindu University, Varanasi, India
  29. Francis Xavier, Amrithesh.M, S.J.Varma, Jeeju P. P and S. Jayalekshmi, “Studies on Polyaniline – functionalised carbon nanotube composite films with exceptional high dc electrical conductivity, Proc. International symposium for research scholars on metallurgy, material science and engineering (ISRS 2010), December 20-22, 2010, ELPM-5, Page No. 199
  30. Francis Xavier, S.J.Varma, and S. Jayalekshmi, “An investigation on the high temperature response of H3PO4 doped PANI and PANI-MWNT composites”, Proc. International conference on Advances in Polymer Technology, Feb. 26-27, 2010, India, Page No. 115
  31. Francis Xavier P. A, Bobins Augustine, S. J. Varma, Jeeju P. P, Amrithesh.M and S. Jayalekshmi, Functionalization of Multiwalled Carbon Nanotubes as a route to synthesize highly conducting Polymer-Nanocomposites” was presented in the international conference ICMST held during October 2010 at Thiruvananthapuram, HPS05, pp 8.34
  32. Sajimol Augustine.M, S.J.Varma, Francis Xavier and S. Jayalekshmi, Enhanced photoluminescence behaviour of PANI/ZnO nanocomposite prepared from oleic acid capped ZnO nanoparticles” was presented in the international conference ICMST held during October 2010 at Thiruvananthapuram
  33. Jeeju P. P, S J. Varma, Francis Xavier P.A, S.Jayalekshmi, “Polypyrrole films with excellent crystallinity and good thermal stability”, was presented in the international conference ICMST held during October 2010 at Thiruvananthapuram
  34. Sajimol Augustine.M, S.J.Varma, Francis Xavier and S. Jayalekshmi, “Enhanced photoluminescence in oleic acid modified Polyaniline”, Proc. International conference ‘ISRS 2010’, IITM, Chennai
  35. Jeeju.P.P, Sreekanth.J.Varma, Amrithesh.M, S.Jayalekshmi, “Polypyrrole nanorods with appreciable crystallanity and good optical absorption characteristics”, Second International Conference on frontiers in Nanoscience & Nanotechnology: Cochin Nano- 2009, page 144
  36. R.Mohan, Srikanth Naik, M. Rao, S.J.Varma, A. M Shanmugharaj, Soney Varghese, Preparation and Characterization of Ferroelectric Polymer-Ceramic Nanocomposites for Non-volatile Memory Applications, Proc. International conference on Advances in Polymer Technology, Feb. 26-27, 2010, India, Page No. 330


Projects

• 2015 - Minor Project entitled “Development of highly crystalline conducting polymers and polymer nanocomposites for electromagnetic shielding applications” funded by University Grants Commission – Rs.5 lakhs

• 2015 - Study of the pressure sensing properties of conducting polymers and their composites - Rs.13,000/-

• 2019 - Synthesis of various transition metal dichalcogenides for catalytic applications - Rs.10,000/-

• 2021 - Organic–Inorganic Nanohybrids for Energy Applications - Rs.10,000/-

Patents
  • Prema K.H, Raji Krishnan, Edamana Prasad, Sreekanth J.Varma, Aswathy Gopan, 2020, 'A process of preparing metal nanoparticles,' Patent no.360528, 08/03/2021
Others
Phd Students

Four PhD Students

One awarded (Mr. Anandu T.P (Research Area: 2D Materials for Energy Storage ) and three persuing:-

  1. Ms. Manju V. (Research Area: Perovskites Oxides for Energy Storage)
  2. Aruna Raj (Research Area: Organic/Inorganic Perovskites for Optoelectronic Applications)
  3. Mr. Rohith R. (Research Area: Transition Metal Oxides for Energy Storage)