Název: Monolayers of platinum nanoparticles prepared by dip-coating
Autoři: Černohorský, Ondřej ; Grym, Jan ; Yatskiv, Roman ; Pham, V.H. ; Hudry, D. ; Dickerson, J.H.
Typ dokumentu: Příspěvky z konference
Konference/Akce: 7th International Conference on Nanomaterials - Research and Application, Brno (CZ), 20151014
Rok: 2015
Jazyk: eng
Abstrakt: Platinum is a transition metal known for its catalytic properties, which are further enhanced when employed in a nanoparticle form. We have recently shown that a monolayer of Pt nanoparticles deposited on semiconductor substrates forms high quality Schottky diodes, which were used in sensitive hydrogen sensors with a detection limit of 1 ppm of H-2 in N-2. Preparation of ordered monolayers of Pt nanoparticles is essential for the understanding of the behaviour of such an interface. To obtain a hexagonal closed-packed nanoparticle array, we prepared Pt nanoparticles stabilized by oleylamine and oleic acid with a narrow size distribution and uniform shapes. A monolayer prepared by dip-coating of Si substrate in the suspension containing Pt nanoparticles showed hexagonal arrangement within separate domains with the surface coverage up to 90%. The increase of the surface coverage with increasing withdrawal speed of the dip-coating process was observed
Klíčová slova: Oleylamine; Pt nanoparticles; Self-assembly
Číslo projektu: GA15-17044S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: NANOCON 2015: 7TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION, ISBN 978-80-87294-63-5

Instituce: Ústav fotoniky a elektroniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na vyžádání prostřednictvím repozitáře Akademie věd.
Původní záznam: http://hdl.handle.net/11104/0270310

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-263586


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav fotoniky a elektroniky
Konferenční materiály > Příspěvky z konference