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Laser Rewritable Dichroics through Reconfigurable Organic Charge‐Transfer Liquid Crystals
Author(s) -
Van Winkle Madeline,
Scrymgeour David A.,
Kaehr Bryan,
Reczek Joseph J.
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201706787
Subject(s) - materials science , acceptor , thin film , laser , optoelectronics , charge (physics) , dichroic glass , liquid crystal , nanotechnology , optics , condensed matter physics , physics , quantum mechanics
Charge‐transfer materials based on the self‐assembly of aromatic donor–acceptor complexes enable a modular organic‐synthetic approach to develop and fine‐tune electronic and optical properties, and thus these material systems stand to impact a wide range of technologies. Through laser‐induction of temperature gradients, in this study, user‐defined patterning of strongly dichroic and piezoelectric organic thin films composed of donor–acceptor columnar liquid crystals is shown. Fine, reversible control over isotropic versus anisotropic regions in thin films is demonstrated, enabling noncontact writing/rewriting of micropolarizers, bar codes, and charge‐transfer based devices.