Highly efficient organic blue electrophosphorescent devices based on 3,6-Bis(triphenylsilyl)carbazole as the host material
Journal
Advanced Materials
Journal Volume
18
Journal Issue
9
Pages
1216-1220
Date Issued
2006
Author(s)
Tsai, M.-H.
Lin, H.-W.
Su, H.-C.
Ke, T.-H.
Wu, C.-C.
Fang, F.-C.
Liao, Y.-L.
Wong, K.-T.
Abstract
Blue electrophosphorescence in organic light-emitting diodes (OLEDs) is enhanced by the use of 3,6-bis(triphenylsilyl)carbazole (see figure). This carbazole derivative with sterically bulky and large-gap triphenylsilyl groups is an electrochemically and morphologically stable efficient host material for blue electrophosphorescence. When utilized in OLEDs, high efficiencies of up to 16 %, 30.6 cd A–1, and 26.7 lm W–1 are achieved.
Type
journal article