Effect of Carrier Balance on Device Degradation of Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence Emitters

Masaki Tanaka, Hiroki Noda, Hajime Nakanotani, Chihaya Adachi

研究成果: ジャーナルへの寄稿学術誌査読

32 被引用数 (Scopus)

抄録

The relatively short device lifetime of blue organic light-emitting diodes (OLEDs) when compared with the lifetimes of green and red OLEDs is one of the crucial problems that must be overcome to enable practical application of these devices to full-color OLED displays. This work focuses on the degradation phenomena of OLEDs that are based on sky-blue thermally activated delayed fluorescence emitters and clarifies the degradation mechanisms based on spectral change of the electroluminescence, which indicates the formation of electromer emission from an electron transport layer. Additionally, it is determined that the change in the carrier balance that occurs during this degradation process can be ascribed to the formation of electron traps.

本文言語英語
論文番号1800708
ジャーナルAdvanced Electronic Materials
5
5
DOI
出版ステータス出版済み - 5月 2019

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料

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