Bias-dependent photoluminescence intensities in n-InP Schottky diodes

Abstract
A remarkable change of the photoluminescence (PL) intensity with the variation of the dc bias voltage is observed in Au/n‐InP Schottky surface. It is found from the observation of the surface band bending that the PL intensity is dominantly affected by the surface space‐charge layer. The maximum PL intensity is found to be attained at the flat‐band bias condition.