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 language | English |
|---|---|
| Pages (from-to) | 1-23 |
| Number of pages | 23 |
| Journal | Nanoscale Research Letters |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Dec 2013 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Surface morphology and optical properties of porphyrin/Au and Au/porphyrin/Au systems
AU - Kalachyova, Yevgeniya
AU - Lyutakov, Oleksiy
AU - Solovyev, Andrey
AU - Slepička, Petr
AU - Švorčík, Vaclav
PY - 2013/12/1
Y1 - 2013/12/1
N2 - 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.
AB - 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.
KW - Enhancement
KW - Gold
KW - Luminescence
KW - Nanostructures
KW - Porphyrin
KW - Surface morphology
UR - http://www.scopus.com/inward/record.url?scp=84891375240&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84891375240&partnerID=8YFLogxK
U2 - 10.1186/1556-276X-8-547
DO - 10.1186/1556-276X-8-547
M3 - Article
VL - 8
SP - 1
EP - 23
JO - Nanoscale Research Letters
JF - Nanoscale Research Letters
SN - 1931-7573
IS - 1
ER -