Start Publications On the formation of hydrophobic carbon quantum dots Langmuir ...
KSV NIMA

On the formation of hydrophobic carbon quantum dots Langmuir films and their transfer onto solid substrates

Year: 2018

Journal: Diam. Relat. Mat., Volume 83, MAR, page 170–176

Authors: Bodik, Michal; Siffalovic, Peter; Nadazdy, Peter; Benkovicova, Monika; Markovic, Zoran; Chlpik, Juraj; Cirak, Julius; Kotlar, Mario; Micusik, Matej; Jergel, Matej; Majkova, Eva

Organizations: Research & Development Operational Program - ERDF [26240220047, 26240120019, 26240220084]; SASPRO Programme [1237/02/02-b]; People Programme (Marie Curie Actions) European Union's Seventh Framework Programme under REA [609427]; [APVV-0308-11]; [APVV-14-0745]; [APVV-15-0641]; [APVV-14-0120]; [VEGA 2/0092/18]

In this work, we present a study of the Langmuir film formation composed of hydrophobic carbon quantum dots (hCQDs). We studied the kinetics of hCQDs pyrolysis and optimized the reaction time for maximum photoluminescence. The resulting hCQDs were analyzed by transmission electron microscopy, X-ray photoemission spectroscopy and grazing-incidence X-ray diffraction. The process of monolayer formation was studied by monitoring surface pressure, surface potential, elastic modulus and Brewster angle microscopy in real time under continuous compression conditions. The monolayer transferred onto a silicon wafer was examined on the nano and micro-scales by means of atomic force microscopy and confocal fluorescence microscopy, respectively.