| Autor: |
Yumiko Mizuki, Hitoshi Kuma, Masakazu Funahashi, Masahiro Kawamura, Chishio Hosokawa, Yuichiro Kawamura |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
SID Symposium Digest of Technical Papers. 41:560 |
| ISSN: |
0097-966X |
| DOI: |
10.1889/1.3500528 |
| Popis: |
We found a new device structure which has an efficiency- enhancement layer between emitting layer and electron transporting layer. We applied the structure to a pure blue fluorescent device with a CIE1931 coordinate of (0.14, 0.12) and successfully obtained very high EQE of over 10% with low driving voltage of 3.7 V at 10 mA/cm2 and long lifetime of 10,000 hrs at an initial luminance of 1,000 cd/m2. Results of transient EL measurements indicated the contribution of triplet excitons to the high EQE. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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