The piezoelectric (PZ) effect is demonstrated for the elongated three-dimensional (In,Ga)As islands grown on a GaAs (100) substrate. The photoluminescence (PL) spectrum is studied as a function of excitation intensity. With increasing excitation intensity, a blue shift and a linewidth reduction of the PL peak from the (In,Ga)As islands are observed. The observed phenomena are attributed to the screening of the internal strain-induced PZ field in the (In,Ga)As islands.
No takes yet. Share an insight, caveat, or question.
Ma et al. (2003) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: