Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 2737-2742 |
| Number of pages | 6 |
| Journal | Organic Electronics: physics, materials, applications |
| Volume | 14 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2013 |
Keywords
- Ambipolar transistors
- Light-emitting transistors
- Organic single crystal
ASJC Scopus subject areas
- Biomaterials
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Electrical and Electronic Engineering
- Chemistry(all)
- Condensed Matter Physics
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Cite this
Yomogida, Y., Sakai, H., Sawabe, K., Gocho, S., Bisri, S. Z., Nakanotani, H., Adachi, C., Hasobe, T., Iwasa, Y., & Takenobu, T. (2013). Multi-color light-emitting transistors composed of organic single crystals. Organic Electronics: physics, materials, applications, 14(11), 2737-2742. https://doi.org/10.1016/j.orgel.2013.07.025