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Surface-Enhanced Raman Scattering of MEH-PPV on Gold and Silver Nanoparticles
Joint Authors
Moraes, Beatriz R.
Campos, Nathalia S.
Barra, Alvaro C. C.
Izumi, Celly M. S.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-13
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The interaction of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) with Au or Ag nanospheres, Au nanostars, and Ag nanoprisms was investigated using surface-enhanced Raman scattering (SERS).
The SERS investigation showed that adsorption of MEH-PPV strongly depends on the nature of the nanoparticle surface.
On gold nanostars that present a thick layer of capping polymer, SERS spectrum is only observed in relatively concentrated MEH-PPV solution (1 mmol L−1).
On the other hand, Au and Ag nanospheres present SERS spectra down to 10−6 mol L−1 and no chemical interaction of MEH-PPV and metal surface is observed.
The spectra of MEH-PPV on Ag nanoprisms with PVP as stabilizing agent suggest that the capping polymer induces a planar conformation of MEH-PPV and consequently an increase of conjugation length.
These results give support for the application of MEH-PPV on optoelectronics in which interfacial effects are critical in the device efficiency and stability.
American Psychological Association (APA)
Moraes, Beatriz R.& Campos, Nathalia S.& Barra, Alvaro C. C.& Izumi, Celly M. S.. 2018. Surface-Enhanced Raman Scattering of MEH-PPV on Gold and Silver Nanoparticles. Journal of Spectroscopy،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1202587
Modern Language Association (MLA)
Moraes, Beatriz R.…[et al.]. Surface-Enhanced Raman Scattering of MEH-PPV on Gold and Silver Nanoparticles. Journal of Spectroscopy No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1202587
American Medical Association (AMA)
Moraes, Beatriz R.& Campos, Nathalia S.& Barra, Alvaro C. C.& Izumi, Celly M. S.. Surface-Enhanced Raman Scattering of MEH-PPV on Gold and Silver Nanoparticles. Journal of Spectroscopy. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1202587
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1202587