Omnidirectional emission from top-emitting organic light-emitting devices with microstructured cavity.
Opt Lett
; 37(2): 124-6, 2012 Jan 15.
Article
in En
| MEDLINE
| ID: mdl-22854441
ABSTRACT
We demonstrate optimized viewing-angle characteristics from top-emitting organic light-emitting devices by integrating a periodic microstructure into the cavity. A holographic lithography technique combined with filling process of the groove by spin coating of a polymer film has been employed to enable its periodically and gradually changed cavity length and suppress the viewing-angle dependence of the peak emission wavelength and intensity. The theoretical and experimental results support that the proposed microstructured cavity can resolve the angular-dependence effect in a very simple and effective way, and a desired omnidirectional emission has been obtained.
Full text:
1
Database:
MEDLINE
Language:
En
Journal:
Opt Lett
Year:
2012
Type:
Article
Affiliation country:
China