Synthesis and characterisation of polyfluorenes with light-emitting segments
2001 (English)In: Synthetic metals, ISSN 0379-6779, Vol. 121, no 1-3, 1761-1762 p.Article in journal (Refereed) Published
We present the synthesis and characterisation of two copolymers. They consists of poly(9-hexyl-9-(2'-ethylhexyl)fluorene) (HEH-PF) with a small amount of another polymer with a narrow band-gap. The synthetic route was designed to allow the incorporation of only one low band-gap segment per polymer chain. Photoluminescence measurements showed that energy transfer from the PF-segments to the low band-gap segments, did occur. In the solid state, all emissions were detected from the low band-gap segments with photoluminescence quantum yields up to 68%. One copolymer showed a low threshold for lasing (2 µJ/cm2) in a microcavity device.
Place, publisher, year, edition, pages
2001. Vol. 121, no 1-3, 1761-1762 p.
Lasers, Photoluminescence, Polyfluorene and derivatives, Synthesis, UV-Vis-NIR absorption
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-47441DOI: 10.1016/S0379-6779(00)00684-6OAI: oai:DiVA.org:liu-47441DiVA: diva2:268337