Energy barrier, charge carrier balance, and performance improvement in organic light-emitting diodes
- 14 June 2010
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 96 (24), 243310
- https://doi.org/10.1063/1.3452344
Abstract
The charge injection properties of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate anodes are crucial for performance of organic photovoltaics and organic light-emitting diodes(OLEDs). A simple method for tuning hole injection efficiency using UV-ozone is shown to change anode work-function and optimized carriers balance in the devices and improved efficiency in OLEDs. The optimum time of treatment and work-function differs with device architecture.Keywords
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