Photoprogrammable Organic Light‐Emitting Diodes
- 12 May 2009
- journal article
- research article
- Published by Wiley in Angewandte Chemie-International Edition
- Vol. 48 (22), 4038-4041
- https://doi.org/10.1002/anie.200805969
Abstract
Enlightening the memory: The integration of a crosslinkable photochromic dithienylperfluorocyclopentene (DTE) into organic light-emitting diodes (OLED) allows for the individualization of the emissive area of the OLED device, for example, for signage applications. The operation principle is based on switching the injection barrier for holes (positive charge carriers). Very large ON/OFF ratios of up to 3000 for current as well as electroluminescence have been achieved.Keywords
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