Reversible aggregation of porphyrins in the solid statey

Brenda Long, Osman Bakr, Francesco Stellacci*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


This paper reports the reversible aggregation of porphyrin molecules in a thin solid film. A commercially available molecule, p-meso-tetra(4-pyridyl)porphyrin (H2TPyP(4)), was used for these studies. Optical absorption spectroscopy of the solution and solid state forms of this molecule show that even in the solid state the molecules have enough mobility to undergo the movement required to form J-aggregates. Resonance light scattering (RLS), fluorescence spectroscopy and atomic force microscopy (AFM) are used to support these results.

Original languageEnglish (US)
Pages (from-to)53-60
Number of pages8
JournalJournal of Experimental Nanoscience
Issue number1
StatePublished - Mar 2008
Externally publishedYes

Bibliographical note

Funding Information:
The financial support of the National Science Foundation (NIRT DMR-0303973) and of the Petroleum Research Fund are kindly acknowledged. FS is grateful to 3M and to DuPont for young faculty awards.


  • Aggregation
  • Porphyrin
  • Reversible
  • Solid state

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering
  • General Materials Science


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