Journal
ORGANIC ELECTRONICS
Volume 14, Issue 11, Pages 2737-2742Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2013.07.025
Keywords
Light-emitting transistors; Organic single crystal; Ambipolar transistors
Funding
- Waseda University [2011A-501]
- Funding Program for the Next Generation of World-Leading Researchers
- FIRST Program from JSPS
- SICORP from JST
- [21224009]
- Grants-in-Aid for Scientific Research [23681025] Funding Source: KAKEN
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We report a novel concept for multi-color light emission from an ambipolar organic single-crystal transistor using natural optical waveguides, the self-absorption effect, Davydov splitting and the unique alignment of the transition dipole moments. We used 9,10-bis(2,2-diphenylvinyl)-anthracene single crystals to produce blue and green light from identical single-crystal transistors. We also observed red light, which corresponds to the emission from in-gap states that are caused by impurities. Importantly, each of these different colors corresponds to a distinguishable light polarization, which enables us to tune the emission color by using a light polarizer. (C) 2013 Elsevier B. V. All rights reserved.
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