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Absorption cross-sections of hole polarons in glassy and beta-phase polyfluorene
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dc.contributor.author | Montilla, Francisco | |
dc.contributor.author | Ruseckas, Arvydas | |
dc.contributor.author | Samuel, Ifor David William | |
dc.date.accessioned | 2014-03-26T17:01:01Z | |
dc.date.available | 2014-03-26T17:01:01Z | |
dc.date.issued | 2013-10-14 | |
dc.identifier | 84360373 | |
dc.identifier | bcc4f14f-5fe3-4116-b9c7-0f67c31e49d3 | |
dc.identifier | 000325169000025 | |
dc.identifier | 84885577181 | |
dc.identifier.citation | Montilla , F , Ruseckas , A & Samuel , I D W 2013 , ' Absorption cross-sections of hole polarons in glassy and beta-phase polyfluorene ' , Chemical Physics Letters , vol. 585 , pp. 133-137 . https://doi.org/10.1016/j.cplett.2013.08.098 | en |
dc.identifier.issn | 0009-2614 | |
dc.identifier.other | ORCID: /0000-0001-9114-3522/work/32543069 | |
dc.identifier.uri | https://hdl.handle.net/10023/4540 | |
dc.description | F. Montilla acknowledges financial support provided by Ministerio de Economía y Competitividad (Ramón y Cajal RYC1463/06 and José Castillejo JC2009-00 227 Programs). The authors also acknowledge the Engineering and Physical Sciences Research Council for financial support. | en |
dc.description.abstract | Absorption induced by electrochemically injected holes is studied in poly-9,9-dioctylfluorene (PFO) films. Injected charges form positive polarons which are delocalised over four fluorene units in the glassy phase and about seven fluorene units in its beta-phase. Polaron absorption cross-sections at the 640 nm peak are similar to the published values of chemically reduced oligofluorenes in solution. The absorption cross-section of polaron in the beta-phase at 470 nm is about eight times smaller than the stimulated emission cross-section derived from published data. This indicates that beta-phase-rich PFO is an attractive candidate for a lightemitting layer in double-heterostructure organic laser diodes. | |
dc.format.extent | 5 | |
dc.format.extent | 505040 | |
dc.language.iso | eng | |
dc.relation.ispartof | Chemical Physics Letters | en |
dc.subject | Conjugated polymer | en |
dc.subject | Films | en |
dc.subject | Fluorescence | en |
dc.subject | Photophysics | en |
dc.subject | Morphology | en |
dc.subject | QD Chemistry | en |
dc.subject.lcc | QD | en |
dc.title | Absorption cross-sections of hole polarons in glassy and beta-phase polyfluorene | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | https://doi.org/10.1016/j.cplett.2013.08.098 | |
dc.description.status | Peer reviewed | en |
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