Nesvizhevsky et al.[1] performed an experiment to study the problem of gravitational quantum well. The “well” in which a quantum particle (neutron was used in the experiment) bounces back and forth, was formed by placing a horizontal reflecting mirror in the Earth’s gravitational field. The experimental results were in reasonable agreement with the theoretical results. So if there is any noncom...

Quantum well (QW) structures are formed in nanometer-thickness-scale semiconductors with different bandgaps sandwiched configurations and can offer a wide variety of advantages as active layers for optoelectronic devices, e.g., laser diodes, light emit photodetectors, solar cells. Due to the non-centrosymmetric crystal structure, third-generation semiconductor, such ZnO, AlN, GaN, InN, generate...