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蓝紫光范围灵敏的GaAs/Ga_0.55Al_0.45As异质结光晶体管

GaAs/Ga_0.55Al_0.45As Heterojunction Phototransistors with High Sensitivity to Blue-Light

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【Author】 Huang Xiaokang/Department of Radio Electronics,Tsinghua University,BeijingSun Baoyin/Department of Radio Electronics,Tsinghua University,BeijingSun Chengcheng/Department of Radio Electronics,Tsinghua University,BeijingXue Baoxing/Department of Radio Electronics,Tsinghua University,BeijingZhang Peirong/Department of Radio Electronics,Tsinghua University,Beijing

【机构】清华大学无线电电子学系；清华大学无线电电子学系北京；北京；北京国家自然基金委员会；

【摘要】本文在对异质结光晶体管的光电流注入进行理论分析的基础上,采用选择性腐蚀工艺,制出了在蓝紫光波段灵敏的GaAs/Ga_0.55Al_0.45As异质结光晶体管,其光谱响应范围为小于4000A到8800A.峰值响应波长为5500A.4000A处的相对响应约为30％,其绝对响应度优于 70μA/μW.更多还原

【Abstract】 Based on a theoretical analysis on the currents in heterojunction phototransistors,GaAs/Ga_0.55Al_0.45As HPTs with high sensitivity to blue-light are made using selective eaching techni-que.The response spectrum ranges from below 4000 A to 8800 A. The relative response as4000 A is about 30% and the responsibility at it is over 70μA/μW.更多还原