Some perspectives and peculiarities of the LPE growth of multicomponent Sb-based solid solutions from pentanary liquid phases
Article
Overview
Research
Identity
Additional Document Info
View All
Overview
abstract
The use of pentanary liquid phases to grow Sb-based solid solutions could improve the quality of these materials and of devices made from them. We discuss here two ways in which these improvements can be achieved. The first one concerns the growth of AlGaAsSb and InGaAsSb from %27neutral%27 solvents in the Sb-rich corner of their phase diagrams. This technology could permit to keep the advantages of growing from Sb solvents and of decreasing the growth temperature at the same time. Another case is related to the control of critical supercooling during LPE growth of AlGaAsSb. We have found experimentally that the addition of In to a Sb-rich Al-Ga-As-Sb liquid phase increases the critical supercooling. In this way the quality of the heterostructure interfaces could be improved.
The use of pentanary liquid phases to grow Sb-based solid solutions could improve the quality of these materials and of devices made from them. We discuss here two ways in which these improvements can be achieved. The first one concerns the growth of AlGaAsSb and InGaAsSb from 'neutral' solvents in the Sb-rich corner of their phase diagrams. This technology could permit to keep the advantages of growing from Sb solvents and of decreasing the growth temperature at the same time. Another case is related to the control of critical supercooling during LPE growth of AlGaAsSb. We have found experimentally that the addition of In to a Sb-rich Al-Ga-As-Sb liquid phase increases the critical supercooling. In this way the quality of the heterostructure interfaces could be improved.
