Organic light-emitting diodes with a bipolar transport layer
- 6 July 1999
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 75 (2) , 172-174
- https://doi.org/10.1063/1.124309
Abstract
A structure based on a bipolar transport/emitting layer is proposed and implemented for making organic light-emitting diodes. Compared to the conventional heterojunction organic light-emitting diodes, more than a factor of six improvement in device reliability (a projected operating lifetime of 70 000 h) is achieved in the structure. The significant improvement in device lifetime is attributed to the elimination of the heterointerface present in the conventional devices which greatly affects the device reliability.Keywords
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