Nonvolatile Liquid Anthracenes for Facile Full-colour Luminescence Tuning at Single Blue-light Excitation

Overview

Journal Nat Commun

Specialty Biology

Date 2013 Jun 6

PMID 23736114

Citations 13

Authors

Sukumaran Santhosh Babu

Martin J Hollamby

Junko Aimi

Hiroaki Ozawa

Akinori Saeki

Shu Seki

Kenji Kobayashi

Keita Hagiwara

Michito Yoshizawa

Helmuth Mohwald

Takashi Nakanishi

Affiliations

Soon will be listed here.

Abstract

Nonvolatile room-temperature luminescent molecular liquids are a new generation of organic soft materials. They possess high stability, versatile optical properties, solvent-free fluid behaviour and can effectively accommodate dopant dye molecules. Here we introduce an approach to optimize anthracene-based liquid materials, focussing on enhanced stability, fluorescence quantum yield, colour tunability and processability, with a view to flexible electronic applications. Enveloping the anthracene core in low-viscosity branched aliphatic chains results in stable, nonvolatile, emissive liquid materials. Up to 96% efficient energy-transfer-assisted tunable emission is achieved by doping a minute amount of acceptor dye in the solvent-free state. Furthermore, we use a thermoresponsive dopant to impart thermally controllable luminescence colours. The introduced strategy leading to diverse luminescence colours at a single blue-light excitation can be an innovative replacement for currently used luminescent materials, providing useful continuous emissive layers in developing foldable devices.

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