Abstract
CdTe thin films were prepared by vacuum evaporation on glass substrates. The XRD diffractogram revealed a zinc blend structure with a strong reflection from the (1 1 1) plane. The diameter of the nanocrystallites was estimated by using the XRD pattern and the Scherrer formula and found to be 23 nm. The transmittance and absorbance measurements were recorded in the wavelength range 600–1100 nm. The first derivative of the absorbance was used to estimate the effective bandgap energies of the nanocrystallites and the hyperbolic band model was used to estimate their radii. The photoluminescence (PL) signal was weak but contains a set of strong sharp lines. These sharp lines are interpreted in terms of the discrete transitions between the valence and conduction bands of the quantum dots. Also the hyperbolic band model was used to estimate the radii of the nanocrystallites depending on the PL spectra.
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 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.
