Conductive Photo-Activated Porphyrin-ZnO Nanostructured Gas Sensor Array
AbstractChemoresistors working at room temperature are attractive for low-consumption integrated sensors. Previous studies show that this feature can be obtained with photoconductive porphyrins-coated ZnO nanostructures. Furthermore, variations of the porphyrin molecular structure alter both the chemical sensitivity and the photoconductivity, and can be used to define the sensor characteristics. Based on these assumptions, we investigated the properties of an array of four sensors made of a layer of ZnO nanoparticles coated with porphyrins with the same molecular framework but different metal atoms. The array was tested with five volatile organic compounds (VOCs), each measured at different concentrations. Results confirm that the features of individual porphyrins influence the sensor behavior, and the differences among sensors are enough to enable the discrimination of volatile compounds disregarding their concentration. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Magna, G.; Catini, A.; Kumar, R.; Palmacci, M.; Martinelli, E.; Paolesse, R.; di Natale, C. Conductive Photo-Activated Porphyrin-ZnO Nanostructured Gas Sensor Array. Sensors 2017, 17, 747.
Magna G, Catini A, Kumar R, Palmacci M, Martinelli E, Paolesse R, di Natale C. Conductive Photo-Activated Porphyrin-ZnO Nanostructured Gas Sensor Array. Sensors. 2017; 17(4):747.Chicago/Turabian Style
Magna, Gabriele; Catini, Alexandro; Kumar, Raj; Palmacci, Massimo; Martinelli, Eugenio; Paolesse, Roberto; di Natale, Corrado. 2017. "Conductive Photo-Activated Porphyrin-ZnO Nanostructured Gas Sensor Array." Sensors 17, no. 4: 747.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.