39.2: Efficient Single‐Layer Small Molecule Blue OLEDs Based on a Multifunctional  Bi polar Transport Material | Zendy

Ho MengHuan | Zendy; Liu MengYu | Zendy; Lin KuanHeng | Zendy; Chen Chin H. | Zendy; Tang Ching W. | Zendy

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39.2: Efficient Single‐Layer Small Molecule Blue OLEDs Based on a Multifunctional Bi polar Transport Material

Author(s) -

Ho MengHuan,

Liu MengYu,

Lin KuanHeng,

Chen Chin H.,

Tang Ching W.

Publication year - 2010

Publication title -

sid symposium digest of technical papers

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.351

H-Index - 44

eISSN - 2168-0159

pISSN - 0097-966X

DOI - 10.1889/1.3500525

Subject(s) - electroluminescence , dopant , oled , optoelectronics , materials science , quantum efficiency , layer (electronics) , diode , anthracene , electron mobility , polar , doping , nanotechnology , chemistry , photochemistry , physics , astronomy

An efficient blue organic light emitting diode with a simplified single‐layer structure by employing the multi‐functional 2‐methyl‐ 9,10‐di(2‐naphthyl)anthracene (MADN) has been developed. By taking advantage of its large bandgap and bipolarity, we demonstrate that MADN can be used as a common material for hole‐transport, host of emitting, electron‐transport layers, and a host for p‐type and n‐type dopants in the same device. The single‐ layer blue OLED achieved an electroluminescence efficiency of 8.5 cd/A with corresponding CIE x,y of (0.16, 0.25) at 20 mA/cm 2 and an external quantum efficiency of 4.9%.

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