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An Enhanced Operational Stability of Organic Light Emitting Devices with Polymeric Buffer Layer
| Content Provider | Scilit |
|---|---|
| Author | Cho, Sang Hee Suh, Min Chul |
| Copyright Year | 2012 |
| Description | Journal: Japanese Journal of Applied Physics A uniform and robust polymer-based hole injection layer (HIL) was formed by spin-casting process in an ambient air condition. The rough surface of indium tin oxide (ITO) was covered by this polymer-based HIL which plays an important role as a buffer layer. The utilization of this buffered HIL polymer resulted in an enhanced long-term stability of organic light emitting devices (OLEDs). In addition, we found that the precise control of hole current flow is possible by doping of 9,10-dicyanoanthracene (DCA) with moderate electron affinity (~3.5 eV) plausibly due to a strong dipole interaction with the polymeric HIL material. As a result, a new buffer layer doped with DCA showed a substantially controlled hole injection into an emitting layer (EML) which causes a much more enhanced lifetime of the blue OLED by a factor of 4.3. |
| Related Links | http://iopscience.iop.org/article/10.1143/JJAP.51.041601/pdf |
| ISSN | 00214922 |
| e-ISSN | 13474065 |
| DOI | 10.1143/jjap.51.041601 |
| Journal | Japanese Journal of Applied Physics |
| Issue Number | 4R |
| Volume Number | 51 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2012-03-22 |
| Access Restriction | Open |
| Subject Keyword | Journal: Japanese Journal of Applied Physics Rough Surface Buffer Layer Hole Injection |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Engineering |
