Abstract
Two novel efficient blue thermally activated delayed fluorescence (TADF) emitters, Ac-OPO and Ac-OSO, consisting of phenoxaphosphine oxide and phenoxathiin dioxide as acceptor units and dimethylacridan as a donor unit, have been developed. Maximum Next values of 12.3% and 20.5% were achieved in blue TADF-OLEDs by employing Ac-OPO and Ac-OSO as TADF emitters, respectively. Moreover, the Ac-OSO-based blue-emitting device exhibits a very weak efficiency roll-off with Next over 13% even a luminance of 1000 cd m-2. These results demonstrate that blue TADF emitters can provide new prospects as an attractive alternative to conventional blue fluorescent and phosphorescent materials in the future.
| Original language | English |
|---|---|
| Pages (from-to) | 4626-4631 |
| Number of pages | 6 |
| Journal | Advanced Materials |
| Volume | 28 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - Jan 1 2016 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
High-Efficiency Blue Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence from Phenoxaphosphine and Phenoxathiin Derivatives. / Lee, Sae Youn; Adachi, Chihaya; Yasuda, Takuma.
In: Advanced Materials, Vol. 28, No. 23, 01.01.2016, p. 4626-4631.Research output: Contribution to journal › Article
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TY - JOUR
T1 - High-Efficiency Blue Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence from Phenoxaphosphine and Phenoxathiin Derivatives
AU - Lee, Sae Youn
AU - Adachi, Chihaya
AU - Yasuda, Takuma
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Two novel efficient blue thermally activated delayed fluorescence (TADF) emitters, Ac-OPO and Ac-OSO, consisting of phenoxaphosphine oxide and phenoxathiin dioxide as acceptor units and dimethylacridan as a donor unit, have been developed. Maximum Next values of 12.3% and 20.5% were achieved in blue TADF-OLEDs by employing Ac-OPO and Ac-OSO as TADF emitters, respectively. Moreover, the Ac-OSO-based blue-emitting device exhibits a very weak efficiency roll-off with Next over 13% even a luminance of 1000 cd m-2. These results demonstrate that blue TADF emitters can provide new prospects as an attractive alternative to conventional blue fluorescent and phosphorescent materials in the future.
AB - Two novel efficient blue thermally activated delayed fluorescence (TADF) emitters, Ac-OPO and Ac-OSO, consisting of phenoxaphosphine oxide and phenoxathiin dioxide as acceptor units and dimethylacridan as a donor unit, have been developed. Maximum Next values of 12.3% and 20.5% were achieved in blue TADF-OLEDs by employing Ac-OPO and Ac-OSO as TADF emitters, respectively. Moreover, the Ac-OSO-based blue-emitting device exhibits a very weak efficiency roll-off with Next over 13% even a luminance of 1000 cd m-2. These results demonstrate that blue TADF emitters can provide new prospects as an attractive alternative to conventional blue fluorescent and phosphorescent materials in the future.
UR - http://www.scopus.com/inward/record.url?scp=84973594790&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84973594790&partnerID=8YFLogxK
U2 - 10.1002/adma.201506391
DO - 10.1002/adma.201506391
M3 - Article
C2 - 27059783
AN - SCOPUS:84973594790
VL - 28
SP - 4626
EP - 4631
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 23
ER -