The design of molecular hosts suitable for efficient color-tunable triplet emission was investigated using density functional theory (DFT). The influence of molecular topology on the triplet excited-state properties were observed using carbazole (CBZ) and spiro building blocks. The host materials suitable for blue-light-emitting devices can be designed by interconnecting CBZ and spiro monomers through their meta (3,6) positions. A series of oligomers substituted with electroactive groups on side fluorene moieties of their spiro units was also investigated. The results show that lowest triplet state of oligomers with interconnections in meta positions is localized on side segments.
|Original language||English (US)|
|Number of pages||6|
|State||Published - Sep 16 2004|
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering