TIFR
Department of Chemical Sciences
School of Natural Sciences

April 6, 2021 at 4.30 pm (Via Zoom)

Title :

π-Conjugated functional materials: design, synthesis and potential application

Abstract :

Electronics industries are highly dominated by Si and other inorganic semiconductor. After the discovery of conducting polymers there is enormous hope on carbon-based materials as future electronics. Recent research advancement in this area is highly promising but yet to go a long way. Organic materials as semiconductor have several advantages, such as easier designing and synthesis, better batch to batch reproducibility, cheap and most important one is flexibility which can fulfil the dream of future flexi-electronics. Relatively lower performance and stability than that of inorganic semiconductors are the major issues to be fixed. So designing of new efficient materials is on high demand.

So here in this seminar, I will discuss my contribution towards designing and synthesizing new -conjugated functional materials for potential application in organic electronics. The packing pattern in solid state is very vital which controls the performance of the resulting device, so during my PhD I worked with -conjugated oligomers to understand their intra and inter-molecular non-bonding interaction which control the packing pattern in solid state. Also π-conjugated polymers were developed from these oligomers and their electrochromic behaviours were studied. Graphene has evolved an important class of carbon-based materials as future electronics but zero band-gap and difficult synthetic accessibility is the major problem. Whereas nano-graphene, a smaller unit of graphene is an important alternative class of materials, I will discuss design and synthesis of new nano-graphene moiety. 

In the second half of my seminar I will discuss my future research proposal. Designing of new carbon-rich materials is my primary goal as an independent researcher. To execute the synthesis of these designed materials we will follow some established synthetic strategy or will introduce modified synthetic pathways. Of course the materialistic properties of those new materials will be explored through fabricating devices such as organic field effect transistors (OFETs), organic light emitting diodes (OLEDs) and organic spintronics. Also these materials will be explored in the area of artificial photosynthesis for solar light storage. 

Reference

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3) P. B. Pati et al., Angew. Chem. Int. Ed., 2020, 59, 14891. 

4) P. B. Pati et al., ACS Appl. Mater. Interfaces, 2013, 5, 12460. 

 

5) P. B. Pati et al., Cryst. Growth Des., 2014, 14, 1695.