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Volpati D, Job AE, Aroca RF, et al. Molecular and morphological characterization of bis benzimidazo perylene films and surface-enhanced phenomena. J Phys Chem B. 2008;112(13):3894-902doi: 10.1021/jp077588h.
Volpati, D., Job, A. E., Aroca, R. F., & Constantino, C. J. (2008). Molecular and morphological characterization of bis benzimidazo perylene films and surface-enhanced phenomena. The journal of physical chemistry. B, 112(13), 3894-902. https://doi.org/10.1021/jp077588h
Volpati, D, et al. "Molecular and morphological characterization of bis benzimidazo perylene films and surface-enhanced phenomena." The journal of physical chemistry. B vol. 112,13 (2008): 3894-902. doi: https://doi.org/10.1021/jp077588h
Volpati D, Job AE, Aroca RF, Constantino CJ. Molecular and morphological characterization of bis benzimidazo perylene films and surface-enhanced phenomena. J Phys Chem B. 2008 Apr 03;112(13):3894-902. doi: 10.1021/jp077588h. Epub 2008 Mar 12. PMID: 18335918.
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J Phys Chem B. 2008 Apr 03;112(13):3894-902. doi: 10.1021/jp077588h. Epub 2008 Mar 12.

Molecular and morphological characterization of bis benzimidazo perylene films and surface-enhanced phenomena.

The journal of physical chemistry. B

D Volpati, A E Job, R F Aroca, C J L Constantino

Affiliations

  1. DFQB, Faculdade de Ciências e Tecnologia, UNESP, Presidente Prudente/SP, 19060-900, Brazil.

PMID: 18335918 DOI: 10.1021/jp077588h

Abstract

Thin solid films of bis benzimidazo perylene (AzoPTCD) were fabricated using physical vapor deposition (PVD) technique. Thermal stability and integrity of the AzoPTCD PVD films during the fabrication ( approximately 400 degrees C at 10(-6) Torr) were monitored by Raman scattering. Complementary thermogravimetric results showed that thermal degradation of AzoPTCD occurs at 675 degrees C. The growth of the PVD films was established through UV-vis absorption spectroscopy, and the surface morphology was surveyed by atomic force microscopy (AFM) as a function of the mass thickness. The AzoPTCD molecular organization in these PVD films was determined using the selection rules of infrared absorption spectroscopy (transmission and reflection-absorption modes). Despite the molecular packing, X-ray diffraction revealed that the PVD films are amorphous. Theoretical calculations (density functional theory, B3LYP) were used to assign the vibrational modes in the infrared and Raman spectra. Metallic nanostructures, able to sustain localized surface plasmons (LSP) were used to achieve surface-enhanced resonance Raman scattering (SERRS) and surface-enhanced fluorescence (SEF).

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