Abstract
Silicon nanoparticles (Si-NPs) obtained by electrochemical etching of silicon wafer were incorporated into various dielectric matrices using sol–gel method. To attain a wide range of dielectric constant and band gap energy, three matrices are selected (SiO2, ZrO2 and TiO2) and the Si-NPs were incorporated in these matrices at different concentrations. Structural studies by transmission electron microscopy and Raman spectroscopy confirm the presence of Si-NPs in the matrices. Moreover, the significant compressive stress induced by the matrix is observed. Photoluminescence (PL) studies show that Si-NPs preserve their luminescent properties in SiO2 matrix and ZrO2 matrix but not in TiO2 matrix. The PL peak position depends not only on the dimension of Si-NPs but also depends on their concentrations. This is due to the coupling effect between the nanoparticles which increases with concentration.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.