Optically pumped amplified spontaneous emission in an ionic liquid-based polymer light-emitting electrochemical cell

Tomo Sakanoue, Kosuke Sawabe, Yohei Yomogida, Taishi Takenobu, Shiro Seki, Shimpei Ono

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Optically pumped amplified spontaneous emission (ASE) is demonstrated in the active layer of the polymer light-emitting electrochemical cells (LECs). The active layer blend of the light-emitting polymer and the ionic liquid retained a high degree of transparency, enabling its use as an optical slab waveguide, allowing a low ASE threshold energy of 4.1 μJ cm -2 to be achieved. We also demonstrate a planar LEC that showed fast turn on, bright linear shape emission in the middle of the two contacts, and a relatively high current density of 36 A cm -2 with a low driving voltage of 6 V.

Original languageEnglish
Article number263301
JournalApplied Physics Letters
Volume100
Issue number26
DOIs
Publication statusPublished - 2012 Jun 25
Externally publishedYes

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electrochemical cells
spontaneous emission
polymers
liquids
low voltage
high current
slabs
current density
waveguides
thresholds
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Optically pumped amplified spontaneous emission in an ionic liquid-based polymer light-emitting electrochemical cell. / Sakanoue, Tomo; Sawabe, Kosuke; Yomogida, Yohei; Takenobu, Taishi; Seki, Shiro; Ono, Shimpei.

In: Applied Physics Letters, Vol. 100, No. 26, 263301, 25.06.2012.

Research output: Contribution to journalArticle

Sakanoue, Tomo ; Sawabe, Kosuke ; Yomogida, Yohei ; Takenobu, Taishi ; Seki, Shiro ; Ono, Shimpei. / Optically pumped amplified spontaneous emission in an ionic liquid-based polymer light-emitting electrochemical cell. In: Applied Physics Letters. 2012 ; Vol. 100, No. 26.
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