| Popis: |
In the present work ZnSe nanorods (NRs) have been synthesised using simple Co-precipitation method and as-synthesised sample annealed at 300 0 C in air atmosphere. The structural, morphological and optical properties of prepared samples have been investigated using x-rays diffraction (XRD), transmission electron microscope (TEM), UV-Visible and Photoluminescence (PL) spectroscopy techniques. The XRD results revealed the formation of hexagonal structure of as-synthesized ZnSe NRs which were elongated to the reflection (101). TEM micrographs confirmed the formation of nanorods. Air annealing quenched the hexagonal ZnSe NRs to the hexagonal ZnSe/ZnO nanoparticles. UV–visible absorption spectroscopy predicted the blue shift in band gap of NRs and NPs to the bulk band gap of ZnSe. The PL spectra and corresponding CIE diagram predicted the as-synthesized NRs and quenched NPs emitted bluish colour and found suitable for Blue LEDs and Lasers which are useful in medical, health, pharmaceutical and food industry. |
