**8. Future work**

Semiconductor QDs are advanced materials for various applications which have been discussed elaborately. Their unique physico-chemical properties make them suitable for applications in energy conservation, imaging devices, non-linear optics, nano electronics, nano photonics, solar cells, miniaturized sensors, photography and bio-medical domains. Material preparation and physico-chemical characterization of group IIB-VIA QDs should be further modified in order to fabricate smart devices. The future work toward the greener synthesis of binary and multicomponent nanocomposites is warranted as doping with suitable metal and metal alloys enhances the optoelectronic and optoelectrical properties of these QDs.
