Charge-carrier injection characteristics at organic/organic heterojunction interfaces in organic light-emitting diodes

研究成果: Contribution to journalArticle査読

28 被引用数 (Scopus)

抄録

Organic light-emitting diodes (OLEDs) having various guest molecules doped in an organic host matrix layer are fabricated [the OLED structure is anode/hole-transporting layer (HTL)/guest-host emitting layer/hole-blocking layer/electron-transporting layer/cathode], and the dependence of current density-voltage (J-V) characteristics of the OLEDs on highest occupied molecular orbital (HOMO) levels of guest molecules are investigated. From the J-V characteristics of these OLEDs, we find two important results: (1) J-V characteristics of the OLEDs are controlled by the direct hole injection from the neighboring HTL to guest molecules, and (2) HOMO level alignment between the HTL and guest molecules provides efficient hole injection at this interface.

本文言語英語
ページ(範囲)327-330
ページ数4
ジャーナルChemical Physics Letters
435
4-6
DOI
出版ステータス出版済み - 2 19 2007

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学

フィンガープリント

「Charge-carrier injection characteristics at organic/organic heterojunction interfaces in organic light-emitting diodes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル