Simple unified elucidations of some semiconductor device phenomena

Unification is the quest of science. This paper elucidates unified perspectives of the topics, namely, semiclassical carrier transport in the bulk of a semiconductor and the capacitance of a p-n junction, clarifying the unifying features of drift, diffusion, and thermoelectric currents in the former, and of the depletion and diffusion capacitances in the latter, to an extent not achieved in available books. The elucidation should be helpful in raising the comfort and retention levels and developing the theory building capacities of an average student studying the subject of semiconductor devices.