Hole-injection properties of annealed polythiophene films to replace PEDOT-PSS in multilayered OLED systems
Synthetic Metals Volume 159 Issue 3-4
Page 214-217
published_at 2009
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| File | |
| Title ( eng ) |
Hole-injection properties of annealed polythiophene films to replace PEDOT-PSS in multilayered OLED systems
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| Creator |
Tada Yosuke
Kunai Atsutaka
Kunugi Yoshihito
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| Source Title |
Synthetic Metals
|
| Volume | 159 |
| Issue | 3-4 |
| Start Page | 214 |
| End Page | 217 |
| Abstract |
Hole-injection properties of annealed poly(alkoxy- and alkylthiophene) films in OLEDs were studied. Among them, annealed poly(3,3'-dihexyloxy-2,2'-bithiophene) (aPHOBT) film exhibited good hole-injection properties and a triple-layered OLED with the structure ITO/aPHOBT/PVK/Alq3/Mg-Ag (device I) showed much higher performance than a double-layered device without the aPHOBT layer (device II, ITO/PVK/Alq3/Mg-Ag). Device I was slightly inferior to a device having a PEDOT-PSS layeras the hole injector (device III, ITO/PEDOT- PSS/PVK/Alq3/Mg-Ag) in the low-intermediate region of the applied voltage (6-11 V), but gave comparable luminance to III when the applied voltage exceeded 11 V.
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| Keywords |
Polythiophene; Hole-injection; OLED; Annealing
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| NDC |
Metal and mining engineering [ 560 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier Science SA
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| Date of Issued | 2009 |
| Rights |
Copyright (c) 2008 Elsevier B.V.
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0379-6779
[DOI] 10.1016/j.synthmet.2008.09.002
[NCID] AA00446016
[DOI] http://dx.doi.org/10.1016/j.synthmet.2008.09.002
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