DETAILY PROJEKTU
Název: Study of InP interfaces with metal nanoparticles for monitoring of gas and radiation pollutants in the environment
Poskytovatel: Grantová agentura Akademie věd ČR; Akademie věd České republiky
Řešitel: RNDr. Jiří Zavadil, CSc.
Spoluřešitel: Doc., Ing. Anton Fojtík, DrSc.
Člen: Ondřej Černohorský; Miloslav Frühauf; Mgr. Vladyslav Gorodynskyy, Ph.D.; Ing. Zdeněk Jarchovský; Ing. Pavel Kacerovský, CSc.; Ing. František Kostka, CSc.; Mgr. Halyna Kozak; RNDr. Jan Lorinčík, CSc.; Ing. Dušan Nohavica, CSc.; Ing. Eva Novotná; Ing. Ladislav Pekárek; Ing. Zdeněk Šroubek, DrSc.; Ing. Jan Vaniš, Ph.D.; Mgr. Roman Yatskiv, Ph.D.; Ing. Karel Žďánský, CSc.
Od: 2006-01-01
Do: 2008-12-31
The project was aimed to design and investigate novel reproducible procedures for fabrication of metal nanoparticle interfaces with macromaterial InP with improved properties for wider use in sensitive gas sensors and x-ray detectors. Samples with interfaces metal nanoparticles/InP were fabricated by electroless plating and electrophoresis of metal nanoparticles from various colloidal solutions. Metal nanostructures with Cu, Au, Ag, Pt and Pd have been studied and prepared. Microscopic, electrical and optical methods and SIMS analysis have been used for characterization of nanostructures. Correlation between ordering of metal nanoparticles and electrical properties of interfaces, in particular the potential barrier height and loss currents have been studied. Sensitivity of diode sensors with the made interfaces to low concentrations of hydrogen gas in the air and to nitrogen oxides has been examined. The raise of sensitivity and improvement of noise properties have been pursued for X-ray detectors.