【摘要】 在AlGaInP四元系双异质结发光二极管 (DH LED)的材料生长过程中 ,限制层的Al组分与p型掺杂浓度的确定有较大的随意性 ,这对LED的发光不利。通过分析载流子在发光二极管 (LED)双异质结中的输运情况 ,得到了在不同的p型掺杂程度下 ,限制层Al组分与LED发光效率的关系 ,从而可以探索p型掺杂与Al组分对发光效率影响的规律 ,得到的结论对于LED的器件结构设计以及MOCVD材料生长有一定的指导意义更多还原

【Abstract】 In the case of no determination of Al composition and p-doping density in MOCVD epitaxy of AlGaInP double heterostructure light emitting diodes,the relation of Al composition and luminescent efficiency is gotten under various p-doping density by analyzing carrier transportion in double heterojunction of LED,and the principle of doping density and Al composition vs. luminescent efficiency can be derived.So this conclusion would have a guide to device design and MOCVD epitaxy.更多还原