Tadf oled emission zone and stability analysis with water exposure to different layers during deposition

Rossa Mac Ciarnáin, Hin Wai Mo, Kaori Nagayoshi, Hiroshi Fujimoto, Kentaro Harada, Tung Huei Ke, Paul Heremans, Chihaya Adachi

Research output: Contribution to journalConference articlepeer-review

Abstract

Reliable devices are essential for the commercialization of OLED technology. OLED materials are notorious for their sensitivity to various substances such as water. For thermally activated delayed emission (TADF) OLEDs, which layers are most water-sensitive is unknown. Work towards understanding how water affects OLED performance is shown. Surprisingly, it is shown that the water effect on the emission layer is negligible compared to other layers in this stack. The emission zone is measured for fresh and degraded OLEDs deposited under different water partial pressures. Using a novel highly sensitive measurement method, a shift to the anode side was observed.

Original languageEnglish
Pages (from-to)1477-1481
Number of pages5
JournalDigest of Technical Papers - SID International Symposium
Volume52
Issue number1
DOIs
Publication statusPublished - 2021
Event58th International Symposium on Digest of Technical Papers, ICDT 2021 - Virtual, Online
Duration: May 17 2021May 21 2021

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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