We report on a top-emitting organic light-emitting device (TE-OLED) using a thermally evaporated and semi-transparent NiO film as a top-electrode. Our TE-OLED was fabricated, basically taking the reverse sequence for the fabrication of a conventional bottom-emitting organic light-emitting device (BE-OLED). Since the resultant sheet resistance of our NiO was high (8 kΩ/□) and its transmittance was only 50%, the resulting luminance (∼150 cd/m 2 ) and injection current (∼50 mA/cm 2 ) of our TE-OLED were much inferior to those of the BE-OLED device. However, its top-emitting was clearly observable and is thus concluded that our TE-OLED using thermally evaporated NiO, is quite promising if the NiO is controlled to have lower sheet resistance than the present value.
|Number of pages||5|
|Journal||Applied Surface Science|
|Publication status||Published - 2005 May 15|
|Event||12th International Conference on Solid Films and Surfaces - Hammatsu, Japan|
Duration: 2004 Jun 21 → 2004 Jun 25
Bibliographical noteFunding Information:
The authors are very appreciative of the financial support from KISTEP (Program no. M1-0214-00-0228) and YTCC (project year 2004). The authors also acknowledge the support from Brain Korea 21 Program.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films