title: Thermally stable nonaggregating pyrenylarenes for blue organic light-emitting devices.
abstract: A new series of thermally stable blue light-emitting nonplanar pyrenylarenes having an amine donor and a nitrile acceptor group was prepared from a ketene-S,S-acetal under conventional heating and/or microwave irradiation. The photophysical, electrochemical, and optical behavior of donor-acceptor pyrenylarenes are demonstrated. The performance of blue light-emitting pyrenylarenes was investigated by fabricating a multilayer device with the device configuration of ITO/PEDOT:PSS (40 nm)/NPB (30 nm)/pyrenylarene (55 nm)/BCP (8 nm)/LiF (0.6 nm)/Al (200 nm), which exhibited low turn-on voltage (5 V) with luminance efficiency of 0.8 Cd/A with nonaggregation behavior in both solution and solid state.
authors.affiliation: Division of Medicinal, CSIR-Central Drug Research Institute, Lucknow 226001, India. atul_goel@cdri.res.in
authors.forename: Atul
authors.initials: A
authors.lastname: Goel
authors.forename: Vijay
authors.initials: V
authors.lastname: Kumar
authors.forename: Pankaj
authors.initials: P
authors.lastname: Nag
authors.forename: Vikas
authors.initials: V
authors.lastname: Bajpai
authors.forename: Brijesh
authors.initials: B
authors.lastname: Kumar
authors.forename: Charan
authors.initials: C
authors.lastname: Singh
authors.forename: Sattey
authors.initials: S
authors.lastname: Prakash
authors.forename: R S
authors.initials: RS
authors.lastname: Anand
mesh_terms: D006838:Hydrocarbons / Q000737:chemistry*; D008027:Light
chemical_list: D006838:Hydrocarbons