ZnSe is a sereiconductor with a wide direct energy gap(2.7 eV)at room temperature and is suitable for blue light emitting diodes,lasers and other opto electronic devices.GaAs has been mainly used as a substrate of ZnS...ZnSe is a sereiconductor with a wide direct energy gap(2.7 eV)at room temperature and is suitable for blue light emitting diodes,lasers and other opto electronic devices.GaAs has been mainly used as a substrate of ZnSe.However.there exists a 0.27%lattice ismatch between them.This mismateh causes the generation of many dislocations and defects,and as a result the quality of ZnSe layers becomes poor.展开更多
文摘ZnSe is a sereiconductor with a wide direct energy gap(2.7 eV)at room temperature and is suitable for blue light emitting diodes,lasers and other opto electronic devices.GaAs has been mainly used as a substrate of ZnSe.However.there exists a 0.27%lattice ismatch between them.This mismateh causes the generation of many dislocations and defects,and as a result the quality of ZnSe layers becomes poor.
