Author
Listed:
- Sukumaran Santhosh Babu
(National Institute for Materials Science (NIMS))
- Martin J. Hollamby
(National Institute for Materials Science (NIMS))
- Junko Aimi
(National Institute for Materials Science (NIMS))
- Hiroaki Ozawa
(National Institute for Materials Science (NIMS))
- Akinori Saeki
(Graduate School of Engineering, Osaka University)
- Shu Seki
(Graduate School of Engineering, Osaka University)
- Kenji Kobayashi
(Faculty of Science, Shizuoka University)
- Keita Hagiwara
(Chemical Resources Laboratory, Tokyo Institute of Technology)
- Michito Yoshizawa
(Chemical Resources Laboratory, Tokyo Institute of Technology)
- Helmuth Möhwald
(Max Planck Institute of Colloids and Interfaces, Research Campus Golm)
- Takashi Nakanishi
(National Institute for Materials Science (NIMS))
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.
Suggested Citation
Sukumaran Santhosh Babu & Martin J. Hollamby & Junko Aimi & Hiroaki Ozawa & Akinori Saeki & Shu Seki & Kenji Kobayashi & Keita Hagiwara & Michito Yoshizawa & Helmuth Möhwald & Takashi Nakanishi, 2013.
"Nonvolatile liquid anthracenes for facile full-colour luminescence tuning at single blue-light excitation,"
Nature Communications, Nature, vol. 4(1), pages 1-8, October.
Handle:
RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2969
DOI: 10.1038/ncomms2969
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