Temperature Dependence of Current Transport and Electroluminescence in Vacuum Deposited Organic Light Emitting Devices
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概要
- 論文の詳細を見る
We measure the temperature dependence of the current-voltage (I-V) and electroluminescence (EL) characteristics of organic light emitting devices based on the molecular compound; tris(8-hydroxyquinoline) aluminum (Alq_3). We find that the current is limited by a large density of traps with an exponential energy distribution below the Alq_3 lowest unoccupied molecular orbital. The measured trap density suggests that each molecular site may serve as an electron trap, and that EL arises from the recombination of trapped charge. The relationship between the I-V characteristics and EL provides insight into the optimization of vacuum deposited organic light emitting devices.
- 社団法人応用物理学会の論文
- 1996-03-15
著者
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Mccarty Dennis
Poem) Princeton University
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SHEN Zilan
Department of Electrical Engineering, Advanced Technology Center for Photonics and Optoelectronic Ma
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BURROWS Paul
POEM), Princeton University
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BULOVIC Vladimir
Department of Electrical Engineering, Advanced Technology Center for Photonics and Optoelectronic Ma
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THOMPSON Mark
Department of Electrical Engineering, Advanced Technology Center for Photonics and Optoelectronic Ma
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FORREST Stephen
POEM), Princeton University
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Shen Zilan
Department Of Electrical Engineering Advanced Technology Center For Photonics And Optoelectronic Mat
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Burrows Paul
Poem) Princeton University
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Thompson Mark
Department Of Electrical Engineering Advanced Technology Center For Photonics And Optoelectronic Mat
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Forrest Stephen
Poem) Princeton University
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Bulovic Vladimir
Department Of Electrical Engineering Advanced Technology Center For Photonics And Optoelectronic Mat