title: Spiro-linked hyperbranched architecture in electrophosphorescent conjugated polymers for tailoring triplet energy back transfer.
abstract: A spiro-linked hyperbranched architecture has been incorporated into electrophosphorescent conjugated polymers for the first time, aiming at simultaneously tailoring the intra- and intermolecular triplet energy back transfer from the phosphorescent guest to the conjugated polymer host. Based on a prototype with this unique structure, slower decay of triplet excitons, and 5-8 fold enhancement of device efficiencies are obtained compared with the conventional blending counterpart.
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P R China.
authors.forename: Shiyang
authors.initials: S
authors.lastname: Shao
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Ma
authors.forename: Junqiao
authors.initials: J
authors.lastname: Ding
authors.forename: Lixiang
authors.initials: L
authors.lastname: Wang
authors.forename: Xiabin
authors.initials: X
authors.lastname: Jing
authors.forename: Fosong
authors.initials: F
authors.lastname: Wang
mesh_terms: D004563:Electrochemistry; D004735:Energy Transfer; D049408:Luminescent Agents / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D011108:Polymers / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; D011108:Polymers