Organic electroluminescent device with aromatic amine-containing polymer as a hole transport layer (II): Poly(arylene ether sulfone)-containing tetraphenylbenzidine
✍ Scribed by Junji Kido; Gaku Harada; Katsutoshi Nagai
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 347 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1042-7147
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✦ Synopsis
Organic electroluminescent devices were fabricated using a poly(ary1ene ether sulfonej-containing tetraphenylbenzidine (PTPDES) and tris(8-quinolino1ato)aluminum(ll1) complex, Alq, as the hole transport layer and the electron-transporting emitter layer, respectively. A device structure of glass substrate/indium-tin oxide (lTO)/PTPDES/Alq/Mg : Ag was employed. Hole injection from I T 0 through the PTPDES layer to the Alq layer and concomitant electroluminescence from the Alq layer were observed. Bright green light with a luminance of 14,000 cd/m was observed at a drive voltage of 14 V , indicating that the polymer possesses a high hole mobility and a high electron-blocking capability.