| Autor: |
Lee, Chikyu, Park, Eun Ju, Won, Miseon, Gal, Yeong-Soon, Liu, Jun, Dai, Liming, Lee, Jae-Wook, Jin, Sung-Ho |
| Předmět: |
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| Zdroj: |
Molecular Crystals & Liquid Crystals; 2015, Vol. 621 Issue 1, p8-16, 9p |
| Abstrakt: |
Electroluminescent (EL) properties of Ir(III) complex, [(2,4-diphenylquinoli-ne)]2Iridium picolinic acid N-oxide [(DPQ)2Ir(pic-N-O)] were investigated using PEDOT:PSS and reduced graphene oxide (rGO) as a hole transport layer for solution processable phosphorescent organic light-emitting diodes (PhOLEDs). High performance solution-processable PhOLED with PEDOT:PSS and (DPQ)2Ir(pic-N-O) (8 wt%) doped CBP:TPD:PBD (8:56:12) host emission layer were fabricated to give a high luminance efficiency (LE) of 26.9 cd/A, equivelent to an external quantum efficiency (EQE) of 14.2%. The corresponding PhOLED with rGO as a hole transport layer exhibited the maximum brightness and LE of 13540 cd/m2and 16.8 cd/A, respectively. The utilization of the solution processable rGO thin films as the hole transport layer offered the great potential to the fabrication of solution processable PhOLEDs. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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