title: 1,3,6,8-tetrasubstituted pyrenes: solution-processable materials for application in organic electronics.
abstract: 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.
authors.affiliation: 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
authors.forename: Prashant
authors.initials: P
authors.lastname: Sonar
authors.forename: Mui Siang
authors.initials: MS
authors.lastname: Soh
authors.forename: Yuen Hsia
authors.initials: YH
authors.lastname: Cheng
authors.forename: John T
authors.initials: JT
authors.lastname: Henssler
authors.forename: Alan
authors.initials: A
authors.lastname: Sellinger