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Stable efficiency roll-off in phosphorescent organic light-emitting diodes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sung Hyun | - |
dc.contributor.author | Jang, Jyongsik | - |
dc.contributor.author | Yook, Kyoung Soo | - |
dc.contributor.author | Lee, Jun Yeob | - |
dc.date.accessioned | 2010-02-03T01:01:16Z | - |
dc.date.available | 2010-02-03T01:01:16Z | - |
dc.date.issued | 2008-01-18 | - |
dc.identifier.citation | Appl. Phys. Lett. 92, 023513 | en |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | https://hdl.handle.net/10371/48998 | - |
dc.description.abstract | Origin of efficiency roll-off in phosphorescent organic light-emitting diodes was investigated with triplet mixed host devices and stable devices with little efficiency roll-off was developed. Efficiency
roll-off was significant in the device with narrow recombination zone RZ and charge leakage out of emitting layer at high luminance was critical to efficiency roll-off. Efficiency roll-off could be reduced in triplet mixed host device with broad RZ and little charge leakage at high driving voltage. Triplet mixed host devices with an exciton blocking layer showed a quantum efficiency over 90% of maximum quantum efficiency at a luminance of 20 000 cd/m2. | en |
dc.description.sponsorship | Grant No. RTI04-01-02 from the Regional Technology Innovation Program of the Ministry of Commerce, Industry and Energy (MOCIE) | en |
dc.language.iso | en | en |
dc.publisher | American Institute of Physics | en |
dc.title | Stable efficiency roll-off in phosphorescent organic light-emitting diodes | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 김성현 | - |
dc.contributor.AlternativeAuthor | 장정식 | - |
dc.contributor.AlternativeAuthor | 육경수 | - |
dc.contributor.AlternativeAuthor | 이준엽 | - |
dc.identifier.doi | 10.1063/1.2836270 | - |
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