Confined photoactive substructures on a chiral scaffold: the design of an electroluminescent polyimide as material for PLED

Olivier Dautel (1, 2) , Guillaume Wantz (3) , David Flot (4) , Jean-Pierre Lère-Porte (1, 2) , Joël J. E. Moreau (1, 2) , Jean-Paul Parneix (3) , Françoise Serein-Spirau (1, 2) , Laurence Vignau (3)

1 HMM - Hétérochimie moléculaire et macromoléculaire
2 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
3 LPIOM - Laboratoire de physique des interactions ondes matières
4 EMBL Grenoble - Laboratoire européen de biologie moléculaire - European Molecular Biology Laboratory

The optical and electroluminescent properties of a new chiral electroluminescent polyimide consisting of alternating conjugated segments and chiral units is described. The synthesized polymer exhibited high thermal stability (Td = 350 °C), high electron affinity, and good thin-film forming ability. The C2 symmetry of the chiral unit induces a secondary structure which reduces all types of intra and interchain interactions. The incorporation of a well-defined phenyleneethynylene substructure within the chiral backbone allowed the fabrication of a monolayer electroluminescent polymeric diode with high performance which compares most favorably to related poly-phenyleneethynylene.

Domaines: Chimie organique; Matériaux

Olivier Dautel, Guillaume Wantz, David Flot, Jean-Pierre Lère-Porte, Joël J. E. Moreau, et al.. Confined photoactive substructures on a chiral scaffold: the design of an electroluminescent polyimide as material for PLED. Journal of Materials Chemistry, 2005, 15 (41), pp.4446-4452. ⟨10.1039/b503284a⟩. ⟨hal-00177829⟩