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Novel dendrimer-capped Pt-acetylides for optical power limiting
KTH, Superseded Departments, Fibre and Polymer Technology.
KTH, Superseded Departments, Fibre and Polymer Technology.ORCID iD: 0000-0002-8348-2273
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2004 (English)In: OPTICAL MATERIALS IN DEFENCE SYSTEMS TECHNOLOGY / [ed] Vere AW; Grote JG; Kajzar F, SPIE-INT SOC OPTICAL ENGINEERING , 2004, Vol. 5621, 31-45 p.Conference paper, Published paper (Refereed)
Abstract [en]

This report presents preliminary optical limiting and spectroscopic characterization of dendrimer capped Pt-ethynyls. Preliminary OPL and spectroscopic characterization revealed that these have better OPL properties than the non-capped analogue. The excited state properties in terms of luminescence for emission at ca 400 nm and 525 nm is in the ns and mus range, respectively. The site isolation provided by the dendrimer capping also give rise to strong phosphorescence involving the same emission bands near 525 nm. The decay time for this was found to be in the range 0.2 ms, considerably longer than for other similar Pt-complexes, and we tentatively assign this to a site-isolation effect that prevents quenching of the triplete state. It was shown how the dendron capping also makes it feasible to blend the dye with e.g. MMA monomers and carry out polymerization to obtain a solid OPL device with good performance.

Place, publisher, year, edition, pages
SPIE-INT SOC OPTICAL ENGINEERING , 2004. Vol. 5621, 31-45 p.
Series
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE), ISSN 0277-786X ; 5621
Keyword [en]
optical power limiting, dendrimer, platinum, fluorescence, phosphorescence
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-25471DOI: 10.1117/12.580603ISI: 000226645400005Scopus ID: 2-s2.0-17644415709ISBN: 0-8194-5574-1 (print)OAI: oai:DiVA.org:kth-25471DiVA: diva2:358719
Conference
Conference on Optical Materials in Defence Systems Technology London, ENGLAND, OCT 25-27, 2004
Note
QC 20101025Available from: 2010-10-25 Created: 2010-10-25 Last updated: 2011-11-02Bibliographically approved

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Malmström, Eva

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