| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1531390 | Materials Science and Engineering: B | 2007 | 5 Pages |
Abstract
Polyfluorene (PF) is a class of typical blue electroluminescent (EL) material, but it exhibits undesired feature in the green spectral region under operation condition. We investigated the spectral properties of different device structures of poly(9,9-dioctylfluorene) (PFO)-based light-emitting diodes, and found that the interaction between cathode and PFO is the main origination of green emission in EL devices. The general method of inserting a buffer layer between the PFO and cathode can decrease the low energy band emission to purify the color and improve the EL performance of devices.
Related Topics
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Materials Science
Electronic, Optical and Magnetic Materials
Authors
Zhenyu Chen, Dongge Ma,