title: The hydrogen/deuterium isotope effect of the host material on the lifetime of organic light-emitting diodes.
abstract: The hydrogen/deuterium primary kinetic isotope effect provides useful information about the degradation mechanism of OLED host materials. Thus, replacement of labile C-H bonds in the host with C-D bonds increases the device lifetime by a factor of five without loss of efficiency, and replacement with C-C bonds by a factor of 22.5.
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. tsuji@chem.s.u-tokyo.ac.jp nakamura@chem.s.u-tokyo.ac.jp.
authors.forename: Hayato
authors.initials: H
authors.lastname: Tsuji
authors.forename: Chikahiko
authors.initials: C
authors.lastname: Mitsui
authors.forename: Eiichi
authors.initials: E
authors.lastname: Nakamura