Title | Enhanced Luminescence from Emissive Defects in Aggregated Conjugated Polymers. |
Publication Type | Journal Article |
Year of Publication | 2007 |
Authors | Satrijo, A, Kooi, SE, Swager, TM |
Journal | Macromolecules |
Volume | 40 |
Pagination | 8833–8841 |
Date Published | jan |
ISSN | 0024-9297 |
Keywords | emissive defect conjugated polymer enhanced luminescence color sensor, polyphenylene polyacetylene decompn green fluorescence anthryl defect color change |
Abstract | Degradation experiments and model studies suggested that the longer lived green fluorescence from an aggregated poly(p-phenylene ethynylene) (PPE) was due to the presence of highly emissive, low-energy, anthryl defect sites rather than the emissive conjugated polymer excimers proposed in a previous report. After elucidating the origin of the green fluorescence, additional anthryl units were purposely incorporated into the polymer to enhance the blue-to-green fluorescence color change that accompanied polymer aggregation. The improved color contrast from this anthryl-doped conjugated polymer led to the development of crude solution-state and solid-state sensors, which, upon exposure to water, exhibited a visually noticeable blue-to-green fluorescence color change. |
URL | http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2567116&tool=pmcentrez&rendertype=abstract |
DOI | 10.1021/ma071659t |