Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/handle/10572/2404
Title: Luminescent Polymer Films from Simple Processing of Coronene and Europium Precursors in Water
Authors: Planells, Miquel
Klampaftis, Efthymios
Congiu, Martina
Shivanna, Ravichandran
Rao, K. Venkata
Chepelin, Oleg
Jones, Anita C.
Richards, Bryce S.
George, Subi Jacob
Narayan, K. S.
Robertson, Neil
Keywords: Inorganic & Nuclear Chemistry
Thin Films
Polymers
Luminescense
Photophysics
Coronene
Europium
Room-Temperature Phosphorescence
Organolanthanide Complexes
Lanthanide(Iii) Complexes
Solar Concentrators
Quantum Efficiency
Ternary Complexes
Emission
Light
State
Photoluminescence
Issue Date: 2014
Publisher: Wiley-V C H Verlag Gmbh
Citation: Planells, M; Klampaftis, E; Congiu, M; Shivanna, R; Rao, KV; Chepelin, O; Jones, AC; Richards, BS; George, SJ; Narayan, KS; Robertson, N, Luminescent Polymer Films from Simple Processing of Coronene and Europium Precursors in Water. European Journal of Inorganic Chemistry 2014, (19) 3095-3100, http://dx.doi.org/10.1002/ejic.201402228
European Journal of Inorganic Chemistry
19
Abstract: We describe the preparation and optical characterisation of a coronene tetracarboxylate salt (CS) in polyvinyl alcohol (PVA) thin film solutions processed from water, neat or mixed with varying ratios of a europium tris(hexafluoroacetylacetoanto) diaquo complex [Eu(hfac)(3)(H2O)(2)]. Neat CS-PVA showed not only well-defined fluorescence peaks but also a long-lived phosphorescence emission, persisting for more than 1 second. Interaction between the CS and Eu-III molecules, mediated by means of carboxylate coordination to the Eu-III, was attained by simple incorporation into the PVA polymer matrix and resulted in energy transfer from the coronone antenna to the europium centre. Under various blend ratios of CS and the Eu-III complex, total photoluminescence quantum yields of typically around 30% were achieved. The straightforward processing of this type of self-assembled chromophore-lanthanide system into a luminescent polymer film offers potential for application to other chromophores, lanthanides and polymers.
Description: Restricted Access
URI: http://hdl.handle.net/10572/2404
ISSN: 1434-1948
Appears in Collections:Research Articles (Narayan K. S.)
Research Papers (Subi Jacob George)

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