Steric inhibition of pi-stacking: 1,3,6,8-tetraarylpyrenes as efficient blue emitters in organic light emitting diodes (OLEDs).
The sterically congested tetraarylpyrenes 1-3, which can be readily accessed by Suzuki coupling, exhibit no-aggregation (pi-stacking) behavior in both solution and solid states. The indisposed tendency of 1-3 toward crystallization and their moderate molecular dimensions permit exploitation as blue light emitting materials in OLEDs with respectable device performances.
Moorthy
Jarugu Narasimha
JN
Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India. moorthy@iitk.ac.in
Natarajan
Palani
P
Venkatakrishnan
Parthasarathy
P
Huang
Duo-Fong
DF
Chow
Tahsin J
TJ