Assessment of Energy and Density of States of Three Dimensional Quantum Structure (Bulk)

Abstract

Quantum structures are integral part of optoelectronics devices e.g. lasers, modulators, switches etc. In three dimensional quantum structures (bulk), the particles move freely in all directions with zero confinement. The density of state of quantum structure is the possible number of state an excited electron can occupy per unit volume. The density of state depends on the energy at which the electron moves when excited. In this paper, the energy and density of states of real solids were calculated. The results showed that energy increases with increase in the density of state. But, the density of state does not increase linearly with energy. The density of state has peaks when the energies are at 5eV, 7.5eV and 10eV. The highest peak occurred at 10eV and thereafter, the density of states kept increasing with increase in energy up to 25eV which is the maximum energy under investigation. The findings are in agreement with published literatures. Quantum structure technologies are applicable in measuring devices for IR photo detectors, optics for diode lasers, and micro-electronics for high electron mobility transistor devices.