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Nonlinear photonics properties of porphyrins nanocomposites and self-assembled porphyrins
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
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2012 (English)In: Journal of Porphyrins and Phthalocyanines, ISSN 1088-4246, E-ISSN 1099-1409, Vol. 16, no 7-8, 985-995 p.Article in journal (Refereed) Published
Abstract [en]

Two major reasons limit porphyrins photonic applications: (i) the difficulty of handling them in liquid solutions and (ii) their degradation with long exposure to light. This necessitates the use of appropriate solid matrices to host the porphyrin compounds such as Nafion (117), a stable and inert ion exchange polymer. The first part of this publication confirms such a possibility. In addition to their effective NLO properties, an enhancement of the Soret and Q-bands' absorbance width have been observed by blending three different porphyrin molecules in the Nafion column matrix membrane. This is an important development towards achieving efficient photon-harvesting medium for possible application in photonic devices. The second part of this contribution reports on the self-assembly/molecular recognition of a specific class of porphyrins giving rise to tubular nano-systems with potential THG nonlinear properties.

Place, publisher, year, edition, pages
2012. Vol. 16, no 7-8, 985-995 p.
Keyword [en]
porphyrins, Nafion, self assembly, NLO, SHG, THG, Z-scan
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-253335DOI: 10.1142/S1088424612501076ISI: 000307022900030OAI: oai:DiVA.org:uu-253335DiVA: diva2:814200
Available from: 2015-05-26 Created: 2015-05-26 Last updated: 2017-12-04Bibliographically approved

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Gebresenbut, Girma Hailu

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