Band alignments for pseudomorphic InP/In sub x Ga sub (1-x) heterostructures for growth on (001) InP.

Estimates of the anticipated band alignments for pseudomorphic InP/In sub x Ga sub (1-x) As heterosturctures for growth on (001) InP are presented; wherein 0.53. The present estimates imply an increase in DELTA E sub c by more than 0.2 eV as x -> 1.0 relative to the lattice matched value, and that the partitioning of DELTA E sub g between conduction and valence band in strained heterostructures maintains it's lattice matched value. Potential applications are reviewed in brief.