Cuprous Oxide Nanoparticles
The Cuprous Oxide (Cu2O) is a semiconductor metal which is nontoxic, low cost and has abundant source materials. Cu2O has gained a renewed interest for various technological applications due to its optoelectronic properties. It is a well-known p-type semiconductor with theoretical direct band gap of 2.2 eV which allows fabrication of high efficiency solar cells (theoretical efficiency ~ 18 %). Hence, Cu2O nanoparticles are widely used in various fields based on their unique magnetic, electronic and optical properties, such as CO oxidation, gas sensing, photodegradation and photocatalyst. Moreover, the prospective application areas of Cu2O also includes chemical industry, biosensors, lithium ion batteries, photo catalysis, photoluminescence, optoelectronic and gas sensors. Literature reports several methods for the synthesis of Cu2O nanoparticles such as: thermal oxidation, potentiostatic deposition, activated reactive evaporation, spray pyrolysis ,laser ablation, microemulsion, sono-chemical, microwave, liquid phase synthesis. Although cobalt nanoparticles have some outstanding properties, it is a rather new material and more research should be done in order to enhance the properties and moderate the disadvantages.