Laser Deposition of Tetrasulfonated Phthalocyanine Layers for Gas Sensors

Autor:	Vladimir Myslik, Jitka Skodova, Jaroslav Hofmann, Martin Vrnata, Jan Vlček, Dusan Kopecky, Premysl Fitl
Rok vydání:	2012
Předmět:	Materials science Thin layers Hydrogen Excimer laser medicine.medical_treatment General Engineering Analytical chemistry chemistry.chemical_element Laser Evaporation (deposition) Copper law.invention Nickel chemistry.chemical_compound chemistry law Phthalocyanine medicine
Zdroj:	Advances in Materials Physics and Chemistry. :84-88
ISSN:	2162-5328 2162-531X
Popis:	Thin layers of nickel and copper tetrasulfonated phthalocyanines (NiPcTS and CuPcTS) were prepared by Matrix Assisted Pulsed Laser Evaporation method. The depositions were carried out with KrF excimer laser (energy density of laser radiation EL = 0.1 to 0.5 J.cm-2) from dimethylsulfoxide matrix. For both materials the ablation threshold EL-th was determined. The following properties of deposited layers were characterized: a) chemical composition (FTIR spectra); b) morphology (SEM and AFM portraits); c) impedance of gas sensors based on NiPcTS and CuPcTS layers in the presence of two analytes - hydrogen and ozone. The prepared sensors exhibit response to 1000 ppm of hydrogen and 100 ppb of ozone even at laboratory temperature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::64226c5f7a8bc68b67dd6f2e1dc6ac57 https://doi.org/10.4236/ampc.2012.24b023 Zobrazit plný text záznamu