Case study of electrical, structural and optical properties of CdSe Quantum Dots using DFT based computational tools.

Abstract

Abstract Recent advancement in the field of nano-structured electronic devices has finely tuned up various progenition and manufacturing process of Quantum Dots that can directly harvest energy from solar power. Duly acknowledging different types of procuring processes, the paper primarily focuses on eight different CdSe (Cadmium Selenide) Quantum DOT samples which are initially synthesized in the material testing lab from the available precursor. Structural and electrical properties of these synthesized nano materials are inspected using DFT (Density function theory) based commercial tool - ESPRESSO. Later on, different photo luminous spectroscopic methods are used to understand the optical characteristics of the CdSe based nanomaterials. Light scattering method is applied to comprehend greater insights about the same sampled nano materials based on different parameters such as – polydispersity index (PI), Stokes shift analysis, zeta potential etc. Finally, the most equipped CdSe Quantum DOT sample is chosen for future purpose and a sensitive case study covering diverse advantages, disadvantages and future challenges of QDOTs is carried out.