K. Shiraishi et al., GROWTH AND OPTICAL-PROPERTIES OF STRAINED (ALP)(N)(GAP)(N) SHORT-PERIOD SUPERLATTICES, Journal of electronic materials, 25(12), 1996, pp. 1801-1805
Biaxial tensile strain is introduced into (AlP)(n)(GaP)(n) superlattic
es (SLs) by growing the SLs on slightly lattice-mismatched InGaP inter
mediate layers on GaP(001) substrates. A significant enhancement of ph
otoluminescence intensity is observed for the strained (AlP)(n) (GaP)(
n) short-period SLs, especially for those with n greater than or equal
to 3.