Organic light‐emitting devices having chemically‐doped arylamine oligomer as a hole injection layer | Zendy

Ito Takayuki | Zendy; Asaka Jiro | Zendy; Dao Kinh Luan Thanh | Zendy; Kido Junji | Zendy

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Organic light‐emitting devices having chemically‐doped arylamine oligomer as a hole injection layer

Author(s) -

Ito Takayuki,

Asaka Jiro,

Dao Kinh Luan Thanh,

Kido Junji

Publication year - 2005

Publication title -

polymers for advanced technologies

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.61

H-Index - 90

eISSN - 1099-1581

pISSN - 1042-7147

DOI - 10.1002/pat.609

Subject(s) - oligomer , materials science , oled , doping , layer (electronics) , indium tin oxide , lewis acids and bases , spin coating , polymer chemistry , chemical engineering , coating , optoelectronics , organic chemistry , nanotechnology , chemistry , engineering , catalysis

A soluble and thermally stable arylamine oligomer containing difluorenyl groups was prepared and applied to organic light‐emitting devices (OLEDs) as a hole injection layer. The oligomer layer was doped with a Lewis acid and formed by spin coating from the dichloroethane solution. The OLED with a structure of indium tin oxide (ITO)/Lewis‐acid‐doped arylamine oligomer/ N , N ′‐dinaphthyl‐ N , N ′‐diphenyl bendizine ( α ‐NPD)/tris(8‐quinolinolato)aluminum(III) (Alq 3 )/LiF/Al showed lower drive voltages and higher power efficiencies, compared with the devices without the hole injection oligomer layer. Copyright © 2005 John Wiley & Sons, Ltd.

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