title: A facile and fast approach for the synthesis of doped nanoparticles using a microfluidic device.
abstract: The microfluidic approach emerges as a new and promising technology for the synthesis of nanomaterials. A microreactor allows a variety of reaction conditions to be quickly scanned without consuming large amounts of raw material. In this study, we investigated the synthesis of water soluble 1-thioglycerol-capped Mn-doped ZnS nanocrystalline semiconductor nanoparticles (TG-capped ZnS:Mn) via a microfluidic approach. This is the first report for the successful doping of Mn in a ZnS semiconductor at room temperature as well as at 80 °C using a microreactor. Transmission electron microscopy and x-ray diffraction analysis show that the average particle size of Mn-doped ZnS nanoparticles is ∼3.0 nm with a zinc-blende structure. Photoluminescence, x-ray photoelectron spectroscopy, atomic absorption spectroscopy and electron paramagnetic resonance studies were carried out to confirm that the Mn(2+) dopants are present in the ZnS nanoparticles.
authors.affiliation: DST Unit on Nano Science, Department of Physics, University of Pune, Pune 411007, India.
authors.forename: Akanksha
authors.initials: A
authors.lastname: Singh
authors.forename: Mukta
authors.initials: M
authors.lastname: Limaye
authors.forename: Shashi
authors.initials: S
authors.lastname: Singh
authors.forename: Niranjan Prasad
authors.initials: NP
authors.lastname: Lalla
authors.forename: Chantal Khan
authors.initials: CK
authors.lastname: Malek
authors.forename: Sulabha
authors.initials: S
authors.lastname: Kulkarni