An Organic Light Emitting Device Employing Transparent Rutile TiO2 as an Anode
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概要
- 論文の詳細を見る
Organic light emitting devices (OLEDs) using a transparent semiconductor rutile TiO2 film on r-sapphire substrate as an anode shows fine surface emission. The OLED structure is TiO2/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS)/N,N$'$-Di-[(1-naphthalenyl)-N,N$'$-diphenyl]-(1,1$'$-biphenyl)-4,4$'$-diamine ($\alpha$-NPD)/tris(8-hydroxyquinoline) aluminum (Alq3)/LiF/Al. The obtained maximum luminance and current efficiency are 1340 cd/m2 at 21.0 V and 1.6 cd/A at 15.0 V, respectively. Current efficiency and turn-on voltage of the OLEDs systematically depend on the resistivity of the TiO2 anode. This trend can be explained by dependence of hole injection efficiency on the resistivity.
- Japan Society of Applied Physicsの論文
- 2006-10-25
著者
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Ueno Kazunori
Institute For Materials Research Tohoku University
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Nakano Masaki
Institute For Materials Research Tohoku University
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Toyosaki Hidemi
Institute For Materials Research Tohoku University
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Kawasaki Masashi
Institute For Chemical Research Kyoto University
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FUKUMURA Tomoteru
Institute for Materials Research
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Nakano Masaki
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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