Poly(9,9-dialkyl-3,6-dibenzosilole)--a high energy gap host for phosphorescent light emitting devices.
The preparation of the 3,6-disubstituted dibenzosilole monomers , and by two different routes is described; Suzuki copolymerisation afforded poly(9,9-dioctyl-3,6-dibenzosilole) which has a sufficiently high triplet energy (2.55 eV) to function as a host for green electrophosphorescent emitters.
Chan
Khai Leok
KL
Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, UK.
Watkins
Scott E
SE
Mak
Chris S K
CS
McKiernan
Mary J
MJ
Towns
Carl R
CR
Pascu
Sofia I
SI
Holmes
Andrew B
AB