Abstract
A series of wurtzite Zn(1−x)CdxS (x=0, 0.25, 0.5, 0.75 and 1) nanocrystals with average crystallite size of 1.98, 1.82, 1.80, 2.04 and 2.51nm, respectively, have been synthesized by simple solvothermal microwave heating method. The photoluminescence yield is found to be higher in the case of alloyed nanocrystals (x=0.25, 0.5, 0.75) as compared to ZnS (x=0) and CdS (x=1). The optical emission is tuned from blue (440nm) to orange (575nm) with the increase of Cd composition in Zn(1−x)CdxS nanocrystal. The impedance analysis for Zn(1−x)CdxS nanocrystals has been measured as a function of frequency and temperature. The real and imaginary part of complex impedance plots exhibit semicircle behavior in the complex plane. The AC activation energies of ZnS, Zn0.75Cd0.25S, Zn0.5Cd0.5S, Zn0.25Cd0.75S and CdS nanocrystals were calculated from electrical conductivity analysis and are found to be 0.188, 0.378, 0.456, 0.284 and 0.255eV, respectively. The conductivity of the alloyed nanocrystals was higher than that of ZnS and CdS.
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 callDisclaimer: 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.
