Bifunctional star-burst amorphous molecular materials for OLEDs

Achieving highly efficient solid-state luminescence and carrier transport induced by spontaneous molecular orientation

Jun Yun Kim, Takuma Yasuda, Yu Seok Yang, Chihaya Adachi

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Bifunctional star-burst amorphous molecular materials displaying both efficient solid-state luminescence and high hole-transport properties are developed in this study. A high external electroluminescence quantum efficiency up to 5.9% is attained in OLEDs employing the developed amorphous materials. It is revealed that the spontaneous horizontal orientation of these light-emitting molecules in their molecular-condensed states leads to a remarkable enhancement of the electroluminescence efficiencies and carrier-transport properties.

Original languageEnglish
Pages (from-to)2666-2671
Number of pages6
JournalAdvanced Materials
Volume25
Issue number19
DOIs
Publication statusPublished - May 21 2013

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Carrier transport
Molecular orientation
Electroluminescence
Organic light emitting diodes (OLED)
Transport properties
Stars
Luminescence
Quantum efficiency
Molecules

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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