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  • Vol. 27, Iss. 11 — Jun. 1, 2002
  • pp: 891–893

Photochemical stability of encapsulated laser dyes in dendritic nanoboxes against singlet oxygen

Akira Otomo, Sonoko Otomo, Shiyoshi Yokoyama, and Shinro Mashiko  »View Author Affiliations


Optics Letters, Vol. 27, Issue 11, pp. 891-893 (2002)
http://dx.doi.org/10.1364/OL.27.000891


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Abstract

The use of dendritic nanoboxes (DBoxes) to protect encapsulated dye molecules against photodegradation was evaluated. We focused on photoinduced oxidation and studied the ability of DBoxes to protect the dyes inside from reactive singlet oxygen. Rubrene and a -terthienyl were used as the probe and the generator for singlet oxygen, respectively. Bleaching of encapsulated rubrene in a DBox was 50 times slower than that of rubrene alone. Stability was further improved by attachment of singlet-oxygen-quencher molecules to the surfaces of the DBoxes.

© 2002 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.3380) Materials : Laser materials
(160.4890) Materials : Organic materials

Citation
Akira Otomo, Sonoko Otomo, Shiyoshi Yokoyama, and Shinro Mashiko, "Photochemical stability of encapsulated laser dyes in dendritic nanoboxes against singlet oxygen," Opt. Lett. 27, 891-893 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-11-891


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