Ding Guoqing. Large Area Ge Photo-detectors with a P+N Groove-mesa Structure by Single-ion Implantations[J]. 1988,(1):32-40. DOI: 10.13756/j.gtxyj.1988.01.005.
大面积单离子注入沟槽台面型锗光电探测器的研制
摘要
采用电阻率ρ=0.35Ω-cm和6Ω-cm的掺Sb的N型Ge单晶作衬底材料
并分别注入B
+
、Be
+
形成P
+
区的方法
制作了两种光敏面为φ1.6mm台面型Ge-PD.光电性能测试表明
在近零偏压应用时
光谱响应与注入离子种类和电阻率无关
而Ⅰ—Ⅴ特性、响应度R
?
却与材料电阻率、结深和注入离子种类有关。
Abstract
Two large area (φ1.6mm) Ge photo-detectors with a groove-mesa structure have been-fabricated adopting Sb-doped N typegermanium crystal with resistivities of 0.35Ω-cm and 6Ω-cm as the substrate material
using ion-implantations of B
+
or Be
+
for forming a p
+
region. The measured photoelectric characteristics indicate that
the spectral response does not depend on the sort of implanted ions and material resistivity when these Ge-PDs are applied at a bias voltage of nearly zero volt
but I-V characteristics and light response (Re) depend on material resistivity