Abstract
Abstract Highly luminescent Ag doped ZnO nanocrystals were synthesized in controlled manner by wet chemical route at room temperature and effects of Ag doping and three different ligands polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA) and biotin (BT) attached were investigated. The phase purity, crystallinity and crystallite sizes of as prepared nanoparticles (NPs) were characterized by X-ray diffraction (XRD) technique, which confirms high crystalline hexagonal wurtzite phase for all the samples and has no any toxicity issues. We reported here the egg shape of the Ag doped ZnO nanoparticles in biotin matrix having single domain crystallites as observed from high resolution transmission electron microscopy (HRTEM) images. The electron diffraction results obtained are consistent with the XRD results. The optical properties of the synthesized NPs were examined using UV–visible spectroscopy which shows exceptional band gap of 4.25 eV for the BT caped NPs and is believed to be tuned by Ag doping and quantum confinement in biotin matrix. Photoluminescence (PL) measurements demonstrated that the how Ag+ and different ligands attached can alter the excitonic and defect related emission in the Ag doped ZnO NPs. Room temperature Raman scattering were also reported from all the Ag doped ZnO NPs which shows new phonon scattering mode.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Physica E: Low-dimensional Systems and Nanostructures
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
