Emission color tuning in ambipolar organic singlecrystal field-effect transistors by dye-doping

Hajime Nakanotani, Masatoshi Saito, Hiroaki Nakamura, Chihaya Adachi

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

The effect of dye-doping in ambipolar light-emitting organic field-effect transistors (LE-OFETs) is investigated from the standpoint of the carrier mobilities and the electroluminescence (EL) characteristics under ambipolar operation. Dye-doping of organic crystals permits not only tuning of the emission color but also significantly increases the efficiency of ambipolar LEOFETs. A rather high external EL quantum efficiency (∼0.64%) of one order of magnitude higher than that of a pure p-distyrylbenzene (P3V2) single crystal is obtained by tetracene doping. The doping of tetracene molecules into a host P3V2 crystal has almost no effect on the electron mobility and the dominant carrier recombination process in the tetracene-doped P3V2 crystal involves direct carrier recombination on the tetracene molecules.

Original languageEnglish
Pages (from-to)1610-1615
Number of pages6
JournalAdvanced Functional Materials
Volume20
Issue number10
DOIs
Publication statusPublished - May 25 2010

Fingerprint

Organic field effect transistors
Coloring Agents
field effect transistors
Dyes
Tuning
dyes
tuning
Doping (additives)
Color
color
Electroluminescence
electroluminescence
Crystals
Molecules
Electron mobility
Carrier mobility
carrier mobility
Quantum efficiency
electron mobility
doped crystals

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Emission color tuning in ambipolar organic singlecrystal field-effect transistors by dye-doping. / Nakanotani, Hajime; Saito, Masatoshi; Nakamura, Hiroaki; Adachi, Chihaya.

In: Advanced Functional Materials, Vol. 20, No. 10, 25.05.2010, p. 1610-1615.

Research output: Contribution to journalArticle

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