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Welcome to the




Department of Chemistry

Indian Institute of Technology Kharagpur

OMED Lab Recent Publications

Research goal

     The main focus of the OMED lab is to integrate the synthesis of organic materials and their applications in energy-related devices. We will synthesize conjugated small molecules, polymers and porous polymer networks for their applications in supramolecular chemistry, optoelectronic devices and renewable energy. In modern life, smart electronic and wearable devices including smartphones, smartwatches, blood pressure & heart rate monitor etc. are becoming a necessity. Organic molecules and polymers are finding their use in such devices, for example in displays, sensors etc. In future, to make flexible, stretchable, transparent and self-healing devices, p/n-type molecules and polymers are required to fabricate organic transistors. In the energy sector, renewable energy by solar, wind etc. is to take over the non-renewable sources mainly fossil fuels. In that aspect, organic solar cells are becoming more efficient day by day and will be commercially used in near future. The donor-acceptor conjugated polymers and non-fullerene acceptors construct such highly efficient organic solar cells. Another source of renewable energy is hydrogen generation by water splitting and its storage. For this, porous polymer networks incorporated with different metal catalysts are highly suitable. Currently, the global trend is shifting towards interdisciplinary research. Therefore, research in OMED lab comprising organic chemistry, materials science, device engineering and theoretical understanding can address the challenges of the high-end research goals. 

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Principal Investigator

Dr. Suman Kalyan Samanta

OMED lab, IIT Kharagpur

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Research Areas

  • Conjugated small molecules for supramolecular chemistry and optoelectronics

  • Developing new building blocks for p/n-type donor-acceptor conjugated polymers

  • Synthesis and applications of new main-chain cationic polyelectrolytes

  • Porous organic polymer networks for dye sorption & catalysis applications

  • Fabrication of optoelectronic devices: organic solar cells, field-effect transistors, OLEDs

Representative Publications

  • Soft-Nanocomposites of Nanoparticles and Nanocarbons with Supramolecular and Polymer Gels and Their Applications. Santanu Bhattacharya, Suman Kalyan Samanta, Chem. Rev., 2016, 116, 11967-12028.

  • Conjugated Polymer-Assisted Dispersion of Single-Wall Carbon Nanotubes: The Power of Polymer Wrapping. Suman Kalyan Samanta, Martin Fritsch, Ullrich Scherf, Widianta Gomulya, Satria Zulkarnaen Bisri, Maria Antonietta Loi. Acc. Chem. Res., 2014, 47, 2446–2456.

  • Aggregation Induced Emission Switching and Electrical Properties of Chain Length dependent π-Gels derived from Phenylenedivinylene bis-Pyridinium Salts in Alcohol-Water Mixtures. Suman K. Samanta, Santanu Bhattacharya. J. Mater. Chem., 2012, 22, 25277-25287.

  • Organic n-Channel Transistors Based on [1]Benzothieno[3,2-b]benzothiophene–Rylene Diimide Donor–Acceptor Conjugated Polymers.   Suman Kalyan Samanta,^ Inho Song,^ Jong Heun Yoo, Joon Hak Oh, (^equal contribution). ACS Appl. Mater. Interfaces, 2018, 10, 32444–32453.

  • Synthesis of High Molecular Weight 1,4-Polynaphthalene for Solution-Processed True Color Blue Light Emitting Diode. Suman Kalyan Samanta, Gundam Sandeep Kumar, Uttam Kumar Ghorai, Ullrich Scherf, Somobrata Acharya and Santanu Bhattacharya.     Macromolecules, 2018, 51, 8324–8329.

  • One-step Synthesis of a Cyclic 2,17-dioxo[3,3](4,4‟)biphenylophane and First Preparation of a Microporous Polymer Network from a Macrocyclic Precursor by Cyclotrimerization. Suman Kalyan Samanta,* Eduard Preis, Christian W. Lehmann, Richard Goddard, Saientan Bag, Prabal K. Maiti, Gunther Brunklaus, Ullrich Scherf. Chem. Commun., 2015, 51, 9046-9049.


OMED lab group on May, 2024

Funded by-



IIT Kharagpur

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Start-up Research Grant


Extramural Grant


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