“Click” Synthesis of a Bipolar Dendrimer as a Host Material for Electrophosphorescent Devices | Zendy

Yang Jun | Zendy; Ye Tengling | Zendy; Zhang Qing | Zendy; Ma Dongge | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

“Click” Synthesis of a Bipolar Dendrimer as a Host Material for Electrophosphorescent Devices

Author(s) -

Yang Jun,

Ye Tengling,

Zhang Qing,

Ma Dongge

Publication year - 2010

Publication title -

macromolecular chemistry and physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.57

H-Index - 112

eISSN - 1521-3935

pISSN - 1022-1352

DOI - 10.1002/macp.201000197

Subject(s) - dendrimer , pedot:pss , materials science , thermal stability , oxadiazole , cycloaddition , polymer chemistry , photochemistry , chemistry , polymer , catalysis , organic chemistry , composite material

A new solution‐processable bipolar dendrimer with carbazole units as hole‐transporting units and oxadiazole units as electron‐transporting units was efficiently synthesized based on a convergent approach by alternation of a Cu‐catalyzed azide/alkyne cycloaddition reaction and Williamson ether synthesis. The orthogonal chemistry completely avoided protection and activation of the focal points in the process of dendrimer synthesis. The dendrimer showed a wide bandgap and good thermal stability. Electrophosphorescent devices with the configuration ITO/PEDOT:PSS/bipolar dendrimer:Ir(ppy) 3 /TPBI/LiF/Al were fabricated. The devices showed a maximum current efficiency of 16.8 cd · A −1 , a maximum power efficiency of 4.22 lm · W −1 and an external quantum efficiency of 5.7%.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research