Synthesis and optical properties of MnSe nanostructures: a review

Manganese selenide is an important diluted magnetic semiconductor (DMS) material having both optical and magnetic properties especially in the nanometer scale. Because of the phenomena of polymorphism exhibited by MnSe, it can be an interesting material for controlled polymorphism synthesis by using different synthesis procedures. In this review article, we discuss various synthesis procedures (wet chemical and deposition methods) of different MnSe nanostructures and their optical properties. The dependence of various optical properties (UV-Vis spectroscopy, photoluminescence spectroscopy and time resolved photoluminescence spectroscopy) of the MnSe nanostructures on the methods of synthesis is discussed in this article. We are specially focused on the reaction parameters of synthesis process that influence on the optical properties of the MnSe nanostructures. Moreover, the Stokes shift is calculated for the MnSe nanostructures synthesized by different procedures. Large Stokes shifts observed for MnSe nanostructures create a promising potentials in various applications including multiplex assay, bio-imaging, bio-sensing etc.