Publication details for Dr Lars-Olof PålssonKnaapila, M., Ikkala, O., Torkkeli, M., Jokela, K., Serimaa, R., Dolbnya, I.P., Bras, W., ten Brinke, G., Horsburgh, L.E., Pålsson, L.-O. & Monkman, A.P. (2002). Polarized luminescence from self-assembled, aligned, and cleaved supramolecules of highly ordered rodlike polymers. Applied physics letters 81(14): 1489-1491.
- Publication type: Journal Article
- ISSN/ISBN: 0003-6951, 1077-3118
- DOI: 10.1063/1.1499222
- Keywords: Polymers, Photoluminescence, Self assembly, Acids, Coherence.
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
A hierarchical self-assembly in comb-shaped supramolecules of conjugated rodlike polymers is reported. The supramolecules consist of poly(2,5-pyridinediyl), aciddopants, and hydrogen bonded alkyl side chains. A thermotropic smectic state with an exceptionally large coherence length is formed without additional solvent. This allows facile overall alignment resulting in high dichroism and polarized photoluminescence. Solid films are formed by cleaving side groups from the supramolecules which retain the optical anisotropy together with the high photoluminescence quantum yield of pristine polymer.