Excitation intensity dependence of up-converted emission in ZnSe–ZnTe superlattice grown by MBE

Light up-conversion mechanism of ZnSe–ZnTe superlattices

“…We have been proposing the model on the process of the up-conversion effect [1,3,4]. In this paper, to confirm the model, the dependences of the energy and intensity of the up-converted PL peaks on the excitation intensity for 5 kinds of samples, in different thickness of ZnSe parts that correspond to the barriers in the valence band, are measured.…”

Deep emissions of MBE-ZnTe on tilted GaAs substrate

“…ZnTe combined with ZnSe, such as ZnSe-ZnTe superlattices or ZnSeTe alloys, is expected to be the candidate of photo-electronic devices in the visible region [1,2]. The specially designed ZnSe-ZnTe superlattices, for instance, have the light up-conversion effect [1].…”