| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1796422 | Journal of Crystal Growth | 2006 | 5 Pages |
Abstract
The effects of post-fabrication heat treatments on the performance and stability of organic light-emitting diodes (OLEDs) were studied in standard NPB/Alq3 devices. Electroluminescence (EL) performance, growth of dark spots, and operation stability of the devices with different heat-treatments were measured and monitored. It was found that optimum thermal treatment can slow down the growth of dark-spot and luminescence degradation in the OLEDs. Substantial increase in operation lifetime was also observed in the heat-treated samples. Heating at 70 °C for 7.5 min increases the half-brightness lifetime from 6400 h (untreated device) to over 15,000 h.
Related Topics
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Authors
F.L. Wong, H.Y. Sun, S.W. Tong, M.Y. Chan, C.S. Lee, S.T. Lee,