Surface morphology and optical properties of porphyrin/Au and Au/porphyrin/Au systems

Yevgeniya Kalachyova, Oleksiy Lyutakov, Andrey Solovyev, Petr Slepička, Vaclav Švorčík

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Porphyrin/Au and Au/porphyrin/Au systems were prepared by vacuum evaporation and vacuum sputtering onto glass substrate. The surface morphology of as-prepared systems and those subjected to annealing at 160°C was studied by optical microscopy, atomic force microscopy, and scanning electron microscopy techniques. Absorption and luminescence spectra of as-prepared and annealed samples were measured. Annealing leads to disintegration of the initially continuous gold layer and formation of gold nanoclusters. An amplification of Soret band magnitude was observed on the Au/meso-tetraphenyl porphyrin (TPP) system in comparison with mere TPP. Additional enhancement of luminescence was observed after the sample annealing. In the case of sandwich Au/porphyrin/Au structure, suppression of one of the two porphyrins' luminescence maxima and sufficient enhancement of the second one were observed.

Original languageEnglish
Pages (from-to)1-23
Number of pages23
JournalNanoscale Research Letters
Volume8
Issue number1
DOIs
Publication statusPublished - 1 Dec 2013
Externally publishedYes

Fingerprint

Porphyrins
porphyrins
Surface morphology
Optical properties
optical properties
Luminescence
Annealing
luminescence
Gold
annealing
gold
Vacuum evaporation
vacuum
augmentation
Nanoclusters
Disintegration
disintegration
nanoclusters
Optical microscopy
Amplification

Keywords

  • Enhancement
  • Gold
  • Luminescence
  • Nanostructures
  • Porphyrin
  • Surface morphology

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Surface morphology and optical properties of porphyrin/Au and Au/porphyrin/Au systems. / Kalachyova, Yevgeniya; Lyutakov, Oleksiy; Solovyev, Andrey; Slepička, Petr; Švorčík, Vaclav.

In: Nanoscale Research Letters, Vol. 8, No. 1, 01.12.2013, p. 1-23.

Research output: Contribution to journalArticle

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