Photovoltage spectroscopy and electroluminescence of ZnSe/Cd/sub x/Zn/sub 1-x/Se superlattices

E.N. Agafonov1, A.N. Georgobiani1, L.S. Lepnev1, Yu.G. Sadofyev1
1P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia

Tóm tắt

The ZnSe/Cd/sub x/Zn/sub 1-x/Se superlattices with non-doping layers, grown by molecular beam epitaxy, were investigated by electroluminescence and photovoltage spectroscopy. Green-blue electroluminescence from the quantum wells has been observed at 77 K and 293 K. Well-resolved peaks attributed to excitonic absorption, as well as photosensitivity bands corresponding to the Cd/sub x/Zn/sub 1-x/Se/ZnSe superlattice region and the ZnSe buffer layer, have been observed in photovoltaic measurements.

Từ khóa

#Spectroscopy #Electroluminescence #Zinc compounds #Molecular beam epitaxial growth #Buffer layers #Substrates #Temperature #Optical buffering #Optical superlattices #Gold

Tài liệu tham khảo

10.1016/0022-0248(90)90940-M 10.1016/S0022-0248(00)00275-X 10.1016/S0022-0248(00)00227-X 10.1016/S0022-0248(00)00274-8 10.1016/0022-2313(92)90236-3