Transparent organic light-emitting devices with LiF/Yb : Ag cathode
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
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Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 6975-6977 |
| Journal / Publication | Thin Solid Films |
| Volume | 515 |
| Issue number | 17 |
| Publication status | Published - Jun 2007 |
Link(s)
Abstract
Highly transparent organic light-emitting devices (TOLEDs) based on LiF/Yb:Ag cathode are reported. The device with a structure of Indium tin oxide/N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biph-enyl-4, 4′-diamine (50 nm)/tris (8-hydroxyquinoline) aluminum (50 nm)/LiF(0.5 nm)/Yb:Ag (15 nm, volume ratio 1:1) shows about the same luminances and spectra from both sides. At a current density of 20 mA/cm2, the luminance and electroluminescent efficiency of the top/bottom side are 165/167 cd/m2 and 0.825/0.835 cd/A, respectively. We attribute the characteristics to the high transmittance and low reflectivity of Yb:Ag cathode. The results suggest that LiF/Yb:Ag electrode can be used as an effective and stable cathode in TOLEDs or top-emitting OLEDs. © 2007 Elsevier B.V. All rights reserved.
Research Area(s)
- Cathodes, Evaporation, Indium tin oxide, Ytterbium
Citation Format(s)
Transparent organic light-emitting devices with LiF/Yb : Ag cathode. / Xie, W. F.; Lau, K. C.; Lee, C. S.; Lee, S. T.
In: Thin Solid Films, Vol. 515, No. 17, 06.2007, p. 6975-6977.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
