1,1′-binaphthyl-containing polyfluorenes for efficient light-emitting diodes

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

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Author(s)

Detail(s)

Original languageEnglish
Journal / PublicationMaterials Research Society Symposium - Proceedings
Volume598
Publication statusPublished - 2000
Externally publishedYes

Conference

TitleElectrical, Optical, and Magnetic Properties of Organic Solid-State Materials V
PlaceUnited States
CityBoston
Period29 November - 3 December 2000

Link(s)

Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-0034504917&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(eeab85b0-84b8-44cd-a1aa-d28d3c86a9bd).html

Abstract

A series of 1,1′-binaphthyl-containing polyfluorenes were synthesized by Suzuki coupling reaction. All of the polymers were characterized and had shown good thermal stability and photoluminescent efficiency. By incorporating 1,1′-binaphthyl unit into polyfluorenes, an improved blue PL emission was obtained from P1F3B that contains 25% of fluorene unit and 75% 1,1′-binaphthyl unit as compared with other polyfluorenes. When a hole transporting layer (HTL) of bis-di-BuTPD-Si-PFCB was employed, an optimized double layer device with P3F1B as the emissive layer demonstrated a turn-on voltage of 6.5 V and a very high external quantum efficiency of 1.0% was achieved. A bright purple blue EL emission reached its maximum luminance of 3070 cd/m2.

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Publication fingerprints text

100
Light-Emitting Diod... Material Science
100
Polyfluorene Material Science
100
units INIS
100
layers INIS
100
light emitting diod... INIS
100
Light-emitting Diod... Keyphrases
100
1,1′-binaphthyl Keyphrases
66
emission INIS
50
Binaphthyl Unit Keyphrases
33
comparative evaluat... INIS
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Citation Format(s)

[ RIS ] [ BibTeX ]
1,1′-binaphthyl-containing polyfluorenes for efficient light-emitting diodes. / Liu, Sen; Jiang, Xuezhong; Liu, Michelle S. et al.
In: Materials Research Society Symposium - Proceedings, Vol. 598, 2000.

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal