Synthesis and optical limiting characterization of a porphyrin-buckminsterfullerene dyad

Kenneth J. Mcewan, Keith L. Lewis, A. N.G. How-Ghee, L. O.H. Zhi-Heng, Leng Leng Chng, L. E.E. Yiew-Wang

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

The optical limiting performances of donor-buckminsterfullerene (C60) dyads have hitherto been unreported. The predicted large excited state absorption cross-section of such dyads in their charge-separated states would enable them to exhibit enhanced optical limiting relative to their individual components. We report herein the synthesis and optical limiting characterization of a novel porphyrin-buckminsterfullerene dyad, in which the porphyrin and C60 moieties are held within close proximity of one another by an o-phenylene bridge. The porphyrin-C60 dyad was synthesized via 1,3-dipolar azomethine ylide cycloaddition, and was obtained in 37.0% yield. Optical limiting measurements at 532 nm using 3-ns pulses show that the limiting performance of the dyad is poorer compared to its model compounds. Possible reasons for the worsened performance of the dyad will be discussed.

Original languageEnglish
Pages (from-to)81-86
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume561
DOIs
Publication statusPublished - 1999
Externally publishedYes
EventProceedings of the 1999 MRS Spring Meeting - Symposium on Organic Nonlinear Optical Materials and Devices - San Francisco, CA, USA
Duration: Apr 6 1999Apr 9 1999

ASJC Scopus Subject Areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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