A quick operating organic EL device using Ru complex light-emitting layer with 2,5-bis(4-tert-butyl-2-benz-oxazolyl) thiophene electron transport layer

Seimei Shiratori

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Recently, solid-state light-emitting devices based on small molecules such as Ru(bpy)3(PF6)2 and its derivatives attracted attention as electro luminescence (EL) materials because the luminance shows as high as l600 cd m-2 at only 5 V with spin-cast films in air without sealing the devices. Devices based on these materials operate at low voltage (2.5-5 V), however, response of light emission after applying voltage is rather slow, suggesting a similar mechanism with liquid electro-generated chemiluminescence (ECL) cells. In this paper, we added thin electron transporting layer, 2,5-bis(5-tert-butyl-2-benz-oxazolyl) thiophene (BBOT) film (ca. 200 nm) between Ru complex light-emitting layer and Al electrode. As a result, much quicker response was achieved than the ruthenium(II) complex EL devices without adding the BBOT electron transporting layer.

本文言語English
ページ(範囲)149-153
ページ数5
ジャーナルMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
85
2-3
DOI
出版ステータスPublished - 2001 8月 22

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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