Abstract
We have developed a semitransparent cathode for the top emission organic light-emitting devices using a Sr/Ag double layer prepared by the thermal evaporation technique. The Sr (8-10 nm)/Ag (10 nm) cathode shows the transmittance of 55-76% in the visible spectral region and the sheet resistance of about 12 Ω/□. The underlying Sr layer affects the growing characteristics of Ag layer, resulting in high optical transparency. The bis[2-(2′-benzothienyl)-pyridinato-N,C3′]iridium( acetylacetonate) doped top emission electro-phosphorescent device with a Sr/Ag semitransparent cathode has been fabricated and studied.
| Original language | English |
|---|---|
| Pages (from-to) | 2035-2038 |
| Number of pages | 4 |
| Journal | Thin Solid Films |
| Volume | 517 |
| Issue number | 6 |
| DOIs | |
| State | Published - 30 Jan 2009 |
Keywords
- Sr/Ag semitransparent cathode
- Top emission organic light-emitting device
- Transmittance
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