Synthesis and optical characterization of multi-emission NixYb1-xO photonic semiconducting quantum dots prepared using hydrothermal approach for nano -optical colored amplifiers and light emitting diodes

摘要

Nanophotonic or nano-optic is sort of nanotechnologies that scrutinize the comportment of light on the scale of nanometer along with the interaction of nanoscale substances with light. The photonic semiconducting nanocrystals with distinctive optical traits became a prevalent category of optical probes and optoelectronic nanodevices. The modulation of photonic semiconducting nanomaterials turned out to be a crucial challenge for efficacious optical applications. Here, highly luminescent photonic semiconductors quantum dots were prepared using hydrothermal approach. The ytterbium,Yb, has been selected as doping atoms in the positions of Ni atoms in the NiO crystals. Different amounts of ytterbium, from 1 to 9 at.%, have been doped in the NiO. The stimulus of ytterbium atoms on the NiO crystal structures and the dimension of NiO crystals were explored via transmission electron microscope and X-ray diffractometer. The optical absorbance features comprised modulations of the optical band gaps, where the ytterbium dopant drifted the band gaps from 3.36 eV to 2.24 eV. The luminescent emission spectral property inspected a distinctive displacement of the emission spectra from UV-light to the red light with brilliant improve of the luminescent emission spectra by 8 folds and increasing the quantum yield by 7 folds. These marvel features boarded the opportunity of using the developed NixYb1-xO photonic crystals in the fields of wave guides, optical switches and optical amplifiers.