Development of new H<sub>2</sub>TPP porphyrin films with improved optical sensing capabilities

Michele Tonezzer; Gianluigi Maggioni; Katerina Severova; Sara Carturan; Alberto Quaranta; Gianantonio Della Mea

doi:10.1117/12.722931

16 May 2007 Development of new H₂TPP porphyrin films with improved optical sensing capabilities

Michele Tonezzer, Gianluigi Maggioni, Katerina Severova, Sara Carturan, Alberto Quaranta, Gianantonio Della Mea

Proceedings Volume 6585, Optical Sensing Technology and Applications; 65850X (2007) https://doi.org/10.1117/12.722931
Event: International Congress on Optics and Optoelectronics, 2007, Prague, Czech Republic

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.

Citation Download Citation

Michele Tonezzer, Gianluigi Maggioni, Katerina Severova, Sara Carturan, Alberto Quaranta, and Gianantonio Della Mea "Development of new H₂TPP porphyrin films with improved optical sensing capabilities", Proc. SPIE 6585, Optical Sensing Technology and Applications, 65850X (16 May 2007); https://doi.org/10.1117/12.722931

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