【摘要】 利用我们研制的常压ＭＯＶＰＥ设备对国产ＴＭＧａ、ＴＭＡｌ、ＴＭＩｎ和ＴＭＳｂ进行了鉴定，为此分别生长了ＧａＡｓ、ＡｌＧａＡｓ、ＩｎＰ、ＧａＳｂ外延层和ＧａＡｓ／ＡｌＡｓ、ＧａＳｂ／ＩｎＧａＳｂ超晶格和ＧａＡｓ／ＡｌＧａＡｓ量子阱结构。表征材料纯度的７７Ｋ载流予迁移率分别达到ＧａＡｓ：μ＿ｎ＝５６６００ｃｍ￣２／Ｖ·ｓ，Ａｌ＿（０．２５）Ｇａ＿（０．７５）Ａｓ：μ＿ｎ＝５１６０ｃｍ￣２／Ｖ·ｓ，ＩｎＰ：μ＿ｎ＝６５３００ｃｍ￣２／Ｖ·ｓ，ＧａＳｂ：μ＿ｐ＝５０７６ｃｍ￣２／Ｖ·ｓ。由１０个周期的ＧａＡｓ／ＡｌＡｓ超晶格结构组成的可见光区布拉格反射器已观测到很好的反射光谱和双晶Ｘ射线回摆曲线上高达±２０级的卫星峰。ＧａＡｓ／Ａｌ＿（０．３５）Ｇａ＿（０．６５）Ａｓ量子阱最小阱宽为１０，在ｌｉＫ下由量子尺寸效应导致的光致发光峰能量移动为３９０ｍｅＶ，其线宽为１２ｍｅＶ。这些结果表明上述金属有机化合物已达到较高质量。更多还原

【Abstract】 Assessments of home- made TMAl,TMCa,TMIn and TMSb have been made by use of an AP-MOVPE equipment made by us.GaAs,AlGaAs,InP,GaSb bulk epilayers and GaAs/AlAs superlattice and GaAs/ AlGaAs quantum wells have been grown.The mobilities at 77K are as follows:GAAs:μn=56600 cm Vs, Al0.5 Ga0.75As:μn=51 60cm2/Vs,InP:μn=65300cm2/Vs and GaSb:μp = 5076cm2/Vs,respectively. The reflection spectra of GaAs/ AlAs Bargg reflector is excellent,its satellite peaks in the X-ray rocking curve are±20th.The thinnest well widt.of GaAs/ Al0.35Ga0.65 As quantum well is l0.Energy shift of its exciton emitting in PL spectra at 11K is 390 meV with l2 meV linewidth.These resultsshow the high quality of these home- made precursors.更多还原