Browsing Fakulta elektrotechniky a komunikačních technologií by Author "Vallejos Vargas, Stella"
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AACVD Synthesis and Characterization of Iron and Copper Oxides Modified ZnO Structured Films
Claros Vargas, Martha Carmiňa; Šetka, Milena; Yecid P., Jimenez; Vallejos Vargas, Stella (MDPI, 2020-03-05)Non-modified (ZnO) and modified (Fe2O3@ZnO and CuO@ZnO) structured films are deposited via aerosol assisted chemical vapor deposition. The sulics of these structured films. Static water contact angle measurements for these ... -
Aerosol assisted chemical vapour deposition of gas sensitive SnO2 and Au-functionalised SnO2 nanorods via a non-catalysed vapour solid (VS) mechanism
Vallejos Vargas, Stella; Selina, Soultana; Annanouch, Fatima; Grácia, Isabel; Llobet, Eduard; Blackman, Chris (Nature, 2016-06-23)Tin oxide nanorods (NRs) are vapour synthesised at relatively lower temperatures than previously reported and without the need for substrate pre-treatment, via a vapour-solid mechanism enabled using an aerosol-assisted ... -
Love wave sensors based on gold nanoparticle-modified polypyrrole and their properties to ammonia and ethylene
Šetka, Milena; Potoček, Michal; Král, Zdeněk; Drbohlavová, Jana; Vallejos Vargas, Stella (Elsevier, 2020-02-01)This work presents the fabrication and gas sensing properties of Love wave sensors based on non-modified and gold nanoparticle-modified polypyrrole. Results demonstrate the integration of uniform polypyrrole layers with ... -
Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring
Šetka, Milena; Drbohlavová, Jana; Vallejos Vargas, Stella (MDPI, 2020-03-06)Love wave sensors with silver-modified polypyrrole nanoparticles are developed in this work. These systems prove functional at room temperature with enhanced response, sensitivity and response time, as compared to other ... -
Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles
Šetka, Milena; Calavia, Raul; Vojkůvka, Lukáš; Llobet, Eduard; Drbohlavová, Jana; Vallejos Vargas, Stella (Springer Nature, 2019-06-11)Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles, respectively and tested upon ammonia exposure using Raman and X-ray photonelectrone spectroscopy (XPS). Characterization of both nanomaterilas ... -
Selectively arranged single-wire based nanosensor array systems for gas monitoring
Chmela, Ondřej; Sadílek, Jakub; Somer, Jakub; Mohan, Rajneesh; Hubálek, Jaromír; Vallejos Vargas, Stella (Royal Society of Chemistry, 2018-05-01)Gas nanosensors, comprised of arrays of nanoelectrodes with finger-widths of ~100 nm developed by electron beam lithography and aerosol assisted chemical vapor deposited non-functionalized and Pt-functionalized tungsten ...