title: Electrical properties of 1,4-bis(4-(phenylethynyl)phenylethynyl)benzene and its application for organic light emitting diodes.
abstract: We found that a phenylene ethynylene derivative, 1,4-bis(4-(phenylethynyl)phenylethynyl)benzene (BPPB), provides very high photoluminescence efficiency both in solution (Phi(PL) = 95 +/- 3%) and thin films (Phi(PL) = 71 +/- 3%); further, we observed blue electroluminescence (EL) of lambda(EL(max)) approximately 470 and 510 nm with an external EL efficiency of eta(EL) approximately 0.53% and maximum luminance of approximately 70000 cd m(-2) at current density of approximately 2 A cm(-2) with BPPB as an emitter; also we identified that BPPB functions as a hole transport layer in organic light emitting diodes.
authors.affiliation: Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi, Fukuoka, 819-0395, Japan.
authors.forename: Larysa
authors.initials: L
authors.lastname: Fenenko
authors.forename: Guang
authors.initials: G
authors.lastname: Shao
authors.forename: Akihiro
authors.initials: A
authors.lastname: Orita
authors.forename: Masayuki
authors.initials: M
authors.lastname: Yahiro
authors.forename: Junzo
authors.initials: J
authors.lastname: Otera
authors.forename: Sergei
authors.initials: S
authors.lastname: Svechnikov
authors.forename: Chihaya
authors.initials: C
authors.lastname: Adachi