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Efficient Non-Doped Phosphorescent Orange, Blue and White Organic Light-Emitting Devices

Efficient Non-Doped Phosphorescent Orange, Blue and White Organic Light-Emitting Devices

Yongming Yin, Jing Yu, Hongtao Cao, Letian Zhang, Haizhu Sun, Wenfa Xie

Sci Rep. 2014 Oct 24;4:6754.

PMID: 25341698

Abstract:

Efficient phosphorescent orange, blue and white organic light-emitting devices (OLEDs) with non-doped emissive layers were successfully fabricated. Conventional blue phosphorescent emitters bis [4,6-di-fluorophenyl]-pyridinato-N,C(2')] picolinate (Firpic) and Bis(2,4-difluorophenylpyridinato) (Fir6) were adopted to fabricate non-doped blue OLEDs, which exhibited maximum current efficiency of 7.6 and 4.6 cd/A for Firpic and Fir6 based devices, respectively. Non-doped orange OLED was fabricated utilizing the newly reported phosphorescent material iridium (III) (pbi)₂Ir(biq), of which manifested maximum current and power efficiency of 8.2 cd/A and 7.8 lm/W. The non-doped white OLEDs were achieved by simply combining Firpic or Fir6 with a 2-nm (pbi)₂Ir(biq). The maximum current and power efficiency of the Firpic and (pbi)₂Ir(biq) based white OLED were 14.8 cd/A and 17.9 lm/W.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP664374032	FIr6		664374-03-2	Price

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