期刊
ELECTRONICS LETTERS
卷 54, 期 24, 页码 1395-1396出版社
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/el.2018.7118
关键词
photodetectors; infrared detectors; gallium arsenide; indium compounds; III-V semiconductors; focal planes; quantum well devices; semiconductor growth; semiconductor quantum dots; higher-resolution focal plane arrays; on-axis Si substrates; Si readout integrated circuits; photodetectors; high-temperature operation; silicon substrates; indium arsenide-gallium arsenide QDIPs; quantum dot infrared photodetectors; temperature 32; 0 K; voltage 0; 6 V; Si; InAs-GaAs
Quantum dot infrared photodetectors (QDIPs) are receiving attention as next generation infrared photodetectors that offer high-sensitivity and high-temperature operation. The realisation of QDIPs on silicon (Si) substrates offer further great advantages in terms of cost reduction and higher-resolution focal plane arrays. Indium arsenide/gallium arsenide QDIPs grown directly on on-axis Si (100) substrates are demonstrated. These are expected to further reduce fabrication costs by utilising both the monolithic integration of QDIPs with Si readout integrated circuits and also the bare substrate cost (compared with offcut Si substrates). In the device, the peak detectivity at a temperature of 32 K is measured to be 5.8 x 10(7) cm Hz(1/2)/W of 6.2 m at a bias 0.6 V, with a corresponding responsivity of 27 mA/W. This result indicates that QD structures directly grown on on-axis Si substrates are very promising for the realisation of high-performance QDIPs with low fabrication cost.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据