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Published on: October 18, 2018
Electronic pyroelectricity in a supramolecular assembly of an acceptor-donor-acceptor-type ambipolar π-system
Pritam Sadhukhan1, Sk Kalimuddin2, Aritri Pal1
1School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India. psusg2@iacs.res.in.
Abstract:
Hydrogen-bonded supramolecular assembly of an acceptor-donor-acceptor (ADA)-type ambipolar π-system containing naphthalene-diimide (π-acceptor) and thiophene (π-donor) conjugated chromophores is examined for promising pyroelectric (PY) and photo-PY properties. A maximum PY coefficient of ∼206 μC m-2 K-1 (at Tc) and multifold enhancement after light irradiation is reported. High energy density, power density and scaled efficiency indicate the efficacy of such a nontrivial system for flexible sensors.
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