Self-assembled blue-light emitting materials for their liquid crystalline and OLED applications: from a simple molecular design to supramolecular materials

Abstract

This paper reports the first room temperature fluorescent supramolecular columnar liquid crystals derived from chalcone-biphenyl amine functionalized on the lower rim of calixarene core, with good temperature range. The structural...

Fluorescent cyclophanes and their applications

“…These higher quantum yields are maintained at both high doping concentrations and in concentrated solution, proving that cyclization is an effective strategy for suppressing fluorescent quenching. Other OLEDs devices fabricated on the basis of emissive resorcinarenes, 315 CPPs, 316 cyclometaphenylenes, 19,317 calixarenes 82,318 or cyclophanes incorporating dibenzofuran, 319 carbazole, 320 fluorene, 321 dibenzo[ a , j ]phenazine units 322 have also been reported.…”

Recent advances on chalcone-based photoinitiators of polymerization

“…[166] From a synthetic viewpoint, chalcones can be prepared in one step, by condensation of an aldehyde on an acetophenone in various conditions. [167][168][169][170][171][172][173][174][175][176] Due to the easiness of synthesis, chalcones have been investigated in a wide range of applications, going from organogels [177] to organic light-emitting diodes, [178] organic photovoltaics [179,180]…”

Construction and performance of OLED devices prepared from liquid-crystalline TADF materials

“…Luminescent liquid-crystalline (LC) materials are of great interest due to their unique combination of properties, as they self-organise into anisotropic structures and are able to produce circularly and linearly polarised light that is attractive for use in optical devices. 1–7 Also, liquid crystals forming columnar phases have been recognised as an attractive class of photoconductors due to their anisotropic charge-transporting ability. 8–11…”

“…Luminescent liquid-crystalline (LC) materials are of great interest due to their unique combination of properties, as they selforganise into anisotropic structures and are able to produce circularly and linearly polarised light that is attractive for use in optical devices. [1][2][3][4][5][6][7] Also, liquid crystals forming columnar phases have been recognised as an attractive class of photoconductors due to their anisotropic charge-transporting ability. [8][9][10][11] Recently, there has been increasing interest in thermally activated delayed fluorescent (TADF) materials showing up to 100% of internal quantum efficiency without the need for a heavy transition metal such as iridium.…”