【摘要】 计算了Ⅲ－Ⅴ族五元系化合物ＡｌＧａＩｎＰＡｓ与ＧａＡｓ晶格匹配时的等能隙曲线以及液相外延生长ＡｌＧａＩｎＰＡｓ／ＧａＡｓ所用母液中Ａｌ的分凝系数。实验证明，由于Ａｌ的分凝，使过冷度对Ａｌ－ＧａＩｎＰＡｓ外延层的固相组分有显著影响，但对外延层的其他性质没有影响。更多还原

【Abstract】 The contour of the energy bandgap of ⅢⅤ quinary,AlGaInPAs,lattice matched to GaAs has been calculated,and the segregation coefficient of Al in the solution used for growing AlGaInPAs/GaAs has been analysised.The effect of supercool on the solid composition of AlGaInPAs on GaAs,resulted from Al’s segregating from the solution,has been demonstrated experimentally,no effect on other characteres was found.更多还原