| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Phosphorescent top-emitting organic light-emitting devices with improved light outcoupling |
| Authors: | Riel, H. Karg, S. Beierlein, T. Ruhstaller, Beat Riess, W. |
| DOI: | 10.1063/1.1537052 |
| Published in: | Applied Physics Letters |
| Volume(Issue): | 82 |
| Issue: | 3 |
| Issue Date: | 15-Jan-2003 |
| Publisher / Ed. Institution: | American Institute of Physics |
| ISSN: | 0003-6951 1077-3118 |
| Language: | English |
| Subject (DDC): | 621.3: Electrical, communications, control engineering |
| Abstract: | A dielectric capping layer has been used to increase the light output and to tune the spectral characteristics of top-emitting, phosphorescent organic light-emitting devices (OLEDs). By controlling the thickness of the dielectric layer deposited on top of a thin metal cathode, the transmittance of the top electrode can be adjusted. Maximum light output is not achieved at highest cathode transmittance, indicating that the interplay between different interference effects can be controlled by means of the capping-layer thickness. Furthermore, we demonstrate that the electrical device characteristic is not influenced by the capping layer. The strength of our concept in particular lies in the fact that the optical and the electrical device performance can be optimized separately. Using the capping-layer concept, we have achieved an OLED efficiency of 64 cd/A with pure green emission. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/6960 |
| Fulltext version: | Published version |
| License (according to publishing contract): | Licence according to publishing contract |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Computational Physics (ICP) |
| Appears in collections: | Publikationen School of Engineering |
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Riel, H., Karg, S., Beierlein, T., Ruhstaller, B., & Riess, W. (2003). Phosphorescent top-emitting organic light-emitting devices with improved light outcoupling. Applied Physics Letters, 82(3). https://doi.org/10.1063/1.1537052
Riel, H. et al. (2003) ‘Phosphorescent top-emitting organic light-emitting devices with improved light outcoupling’, Applied Physics Letters, 82(3). Available at: https://doi.org/10.1063/1.1537052.
H. Riel, S. Karg, T. Beierlein, B. Ruhstaller, and W. Riess, “Phosphorescent top-emitting organic light-emitting devices with improved light outcoupling,” Applied Physics Letters, vol. 82, no. 3, Jan. 2003, doi: 10.1063/1.1537052.
RIEL, H., S. KARG, T. BEIERLEIN, Beat RUHSTALLER und W. RIESS, 2003. Phosphorescent top-emitting organic light-emitting devices with improved light outcoupling. Applied Physics Letters. 15 Januar 2003. Bd. 82, Nr. 3. DOI 10.1063/1.1537052
Riel, H., S. Karg, T. Beierlein, Beat Ruhstaller, and W. Riess. 2003. “Phosphorescent Top-Emitting Organic Light-Emitting Devices with Improved Light Outcoupling.” Applied Physics Letters 82 (3). https://doi.org/10.1063/1.1537052.
Riel, H., et al. “Phosphorescent Top-Emitting Organic Light-Emitting Devices with Improved Light Outcoupling.” Applied Physics Letters, vol. 82, no. 3, Jan. 2003, https://doi.org/10.1063/1.1537052.
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