P‐163: Carbazole‐Isoquinoline Hybrid Bipolar Host Material for Highly Efficient Green Electrophosphorescent OLEDs | Zendy

Lee Kum Hee | Zendy; Kang Hyun Ju | Zendy; Kim Seul Ong | Zendy; Yoon Seung Soo | Zendy; Kim Heo Min | Zendy; Seo Ji Hyun | Zendy; Kim Young Kwan | Zendy

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P‐163: Carbazole‐Isoquinoline Hybrid Bipolar Host Material for Highly Efficient Green Electrophosphorescent OLEDs

Author(s) -

Lee Kum Hee,

Kang Hyun Ju,

Kim Seul Ong,

Yoon Seung Soo,

Kim Heo Min,

Seo Ji Hyun,

Kim Young Kwan

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 - 10.1889/1.3500371

Subject(s) - carbazole , iridium , oled , electroluminescence , phosphorescence , dopant , materials science , isoquinoline , quantum efficiency , optoelectronics , doping , chemistry , photochemistry , fluorescence , optics , physics , organic chemistry , nanotechnology , layer (electronics) , catalysis

We synthesized and demonstrated electroluminescent properties of a bipolar host material such as 9‐(3‐(isoquinolin‐1‐yl)phenyl)‐9H‐carbazole (Czpiq). Particularly, by using Czpiq as a host and (bis[2‐(1,1′,2′,1″‐terphen‐3‐yl)pyridinato‐C,N]iridium (III) (acetylacetonate) (tphpy) 2 Ir(acac) as a dopant, a green electrophosphorescent OLED was fabricated, showing a maximum power efficiency of 47.13 lm/W, maximum external quantum efficiency of 12.31%, and CIE x,y coordinates of (0.34, 0.58) at 8V.

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