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Proceedings Paper

Development of new H2TPP porphyrin films with improved optical sensing capabilities
Author(s): Michele Tonezzer; Gianluigi Maggioni; Katerina Severova; Sara Carturan; Alberto Quaranta; Gianantonio Della Mea
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Paper Abstract

In this work novel 5,10,15,20 meso-tetraphenyl porphyrin (H2TPP) films have been deposited by means of a new physical technique named glow discharge induced sublimation (GDS). A preliminary characterization has been performed by means of scanning electron microscopy (SEM) and Fourier transform infra-red (FT-IR) analyses. SEM images and infra-red analyses highlight the great surface roughness and the high purity of GDS films, respectively. For comparison, H2TPP films have been also deposited by means of spin coating (SPIN) technique. Optical sensing measurements, performed in differently concentrated ethyl alcohol (EtOH) atmospheres, highlight that GDS samples yield higher response intensities than SPIN films, very short response times and complete recovery.

Paper Details

Date Published: 16 May 2007
PDF: 8 pages
Proc. SPIE 6585, Optical Sensing Technology and Applications, 65850X (16 May 2007); doi: 10.1117/12.722931
Show Author Affiliations
Michele Tonezzer, Univ. of Trento (Italy)
LNL, INFN (Italy)
Gianluigi Maggioni, LNL, INFN (Italy)
Katerina Severova, Brno Univ. of Technology (Czech Republic)
Sara Carturan, LNL, INFN (Italy)
Alberto Quaranta, Univ. of Trento (Italy)
Gianantonio Della Mea, Univ. of Trento (Italy)
LNL, INFN (Italy)

Published in SPIE Proceedings Vol. 6585:
Optical Sensing Technology and Applications
Francesco Baldini; Jiri Homola; Robert A. Lieberman; Miroslav Miler, Editor(s)

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