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Title: Evidence of a rearrangement of the surface structure in titanium phthalocyanine sensors induced by the interaction with nitrogen oxides molecules

Abstract

Thin-film samples of titanium phthalocyanine, a sensor of environmental pollutants, were studied by time resolved energy-dispersive x-ray reflectivity (EDXR). This original method demonstrated to be an ideal tool to follow the evolution of the films morphology upon gas exposure, in situ, also allowing an unexpected response of the sensors to be detected. Indeed, while the increase in thickness showed the characteristic feature of a 'breathing-like' expansion, already observed in other metal-Pc, the curve of roughness versus exposure time exhibited a peak. This effect, in some cases evident by observation with the naked eye the EDXR data, was attributed to a surface structure rearrangement process.

Authors:
; ; ; ; ; ; ;  [1];  [2];  [2]
  1. Istituto di Struttura della Materia-Area di Ricerca di Tor Vergata, Via del Fosso del Cavaliere 100, 00133 Rome (Italy)
  2. (Italy)
Publication Date:
OSTI Identifier:
20706403
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 87; Journal Issue: 18; Other Information: DOI: 10.1063/1.2119429; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHEMICAL ANALYSIS; MORPHOLOGY; NITROGEN OXIDES; ORGANIC SEMICONDUCTORS; PHTHALOCYANINES; REFLECTIVITY; ROUGHNESS; THIN FILMS; TIME RESOLUTION; TITANIUM; TITANIUM COMPOUNDS; X RADIATION

Citation Formats

Generosi, A., Paci, B., Albertini, V. Rossi, Perfetti, P., Paoletti, A.M., Pennesi, G., Rossi, G., Caminiti, R., Istituto di Struttura della Materia-Area di Ricerca di Montelibretti, Via Salaria Km.29.5, CP10 Monterotondo Stazione, Rome, and Dipartimento di Chimica, Universita 'La Sapienza' di Roma e sezione INFM, P.le A. Moro 5, 00185 Rome. Evidence of a rearrangement of the surface structure in titanium phthalocyanine sensors induced by the interaction with nitrogen oxides molecules. United States: N. p., 2005. Web. doi:10.1063/1.2119429.
Generosi, A., Paci, B., Albertini, V. Rossi, Perfetti, P., Paoletti, A.M., Pennesi, G., Rossi, G., Caminiti, R., Istituto di Struttura della Materia-Area di Ricerca di Montelibretti, Via Salaria Km.29.5, CP10 Monterotondo Stazione, Rome, & Dipartimento di Chimica, Universita 'La Sapienza' di Roma e sezione INFM, P.le A. Moro 5, 00185 Rome. Evidence of a rearrangement of the surface structure in titanium phthalocyanine sensors induced by the interaction with nitrogen oxides molecules. United States. doi:10.1063/1.2119429.
Generosi, A., Paci, B., Albertini, V. Rossi, Perfetti, P., Paoletti, A.M., Pennesi, G., Rossi, G., Caminiti, R., Istituto di Struttura della Materia-Area di Ricerca di Montelibretti, Via Salaria Km.29.5, CP10 Monterotondo Stazione, Rome, and Dipartimento di Chimica, Universita 'La Sapienza' di Roma e sezione INFM, P.le A. Moro 5, 00185 Rome. Mon . "Evidence of a rearrangement of the surface structure in titanium phthalocyanine sensors induced by the interaction with nitrogen oxides molecules". United States. doi:10.1063/1.2119429.
@article{osti_20706403,
title = {Evidence of a rearrangement of the surface structure in titanium phthalocyanine sensors induced by the interaction with nitrogen oxides molecules},
author = {Generosi, A. and Paci, B. and Albertini, V. Rossi and Perfetti, P. and Paoletti, A.M. and Pennesi, G. and Rossi, G. and Caminiti, R. and Istituto di Struttura della Materia-Area di Ricerca di Montelibretti, Via Salaria Km.29.5, CP10 Monterotondo Stazione, Rome and Dipartimento di Chimica, Universita 'La Sapienza' di Roma e sezione INFM, P.le A. Moro 5, 00185 Rome},
abstractNote = {Thin-film samples of titanium phthalocyanine, a sensor of environmental pollutants, were studied by time resolved energy-dispersive x-ray reflectivity (EDXR). This original method demonstrated to be an ideal tool to follow the evolution of the films morphology upon gas exposure, in situ, also allowing an unexpected response of the sensors to be detected. Indeed, while the increase in thickness showed the characteristic feature of a 'breathing-like' expansion, already observed in other metal-Pc, the curve of roughness versus exposure time exhibited a peak. This effect, in some cases evident by observation with the naked eye the EDXR data, was attributed to a surface structure rearrangement process.},
doi = {10.1063/1.2119429},
journal = {Applied Physics Letters},
number = 18,
volume = 87,
place = {United States},
year = {Mon Oct 31 00:00:00 EST 2005},
month = {Mon Oct 31 00:00:00 EST 2005}
}
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