Theory, Modeling and Simulation of Quantum Dots and the Multiphase Systems

To understand the complex behaviour of quantum dots in multiphase systems, this chapter of a book delves into the theoretical foundations, advanced modelling approaches, and sophisticated simulations used to accomplish so. Nanosized structures known as quantum dots show great promise for a variety of uses due to their exceptional electrical and optical characteristics. To fully appreciate and make use of these attributes, a thorough theoretical foundation is required. The confinement effects and energy levels that determine the behaviour of quantum dots are first explored in this chapter, which delves into the fundamental quantum mechanical principles regulating quantum dots. Next, it delves into cutting-edge modelling techniques, such Density Functional Theory, for making precise predictions about quantum dot properties. The effect of quantum dots' interactions with various materials on optical, electrical, and thermal properties is discussed, and extended to multiphase systems. This chapter utilises state-of-the-art simulations to provide light on the design and optimisation of devices based on quantum dots, with a particular emphasis on fine-tuning their features for use in next-generation photonics, electronics, and renewable energy technologies.