Laser Rewritable Dichroics through Reconfigurable Organic Charge-Transfer Liquid Crystals

作者：Van Winkle Madeline; Scrymgeour David A; Kaehr Bryan^*; Reczek Joseph J^*

来源：Advanced Materials, 2018, 30(20): 1706787.

DOI：10.1002/adma.201706787

• columnar liquid crystals
• dichroics
• donor-acceptor materials
• piezoelectric materials
• rewritable media

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.

• 出版日期2018-5-17