Electroluminescence of colloidal ZnSe quantum dots

► Synthesis of ZnSe quantum dots by a green chemical route. ► Characterisation: UV-vis absorption spectroscopy and transmission electron microscopy. ► Analysis of UV-vis absorption spectrum and transmission electron micrographs. ► Study of electro-optical properties by photoluminescence and electroluminescence. ► Conclusion: ZnSe quantum dots can be used as LED with dual colour emission.