1,3,6,8-tetrasubstituted pyrenes: solution-processable materials for application in organic electronics.
A series of star-shaped organic semiconductors have been synthesized from 1,3,6,8-tetrabromopyrene. The materials are soluble in common organic solvents allowing for solution processing of devices such as light-emitting diodes (OLEDs). One of the materials, 1,3,6,8-tetrakis(4-butoxyphenyl)pyrene, has been used as the active emitting layer in simple solution-processed OLEDs with deep blue emission (CIE = 0.15, 0.18) and maximum efficiencies and brightness levels of 2.56 cd/A and >5000 cd/m(2), respectively.
Sonar
Prashant
P
Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (ASTAR), 3 Research Link, Republic of Singapore 117602. sonarp@imre.a-star.edu.sg
Soh
Mui Siang
MS
Cheng
Yuen Hsia
YH
Henssler
John T
JT
Sellinger
Alan
A