Momentum (k)-Space Charge Separation Mid-Wave Infrared Photodetectors Using SiGeSn Alloys
2021 IEEE Photonics Society Summer Topicals Meeting Series (SUM)(2021)
Abstract
We report a band-structure engineering approach with k-space charge-separation feature by tailoring the direct-energy valley to be several kBT higher than the indirect, enabling large absorption coefficients while maintaining long-carrier lifetimes. Modeling shows SiGeSn alloys with constant 3kBTΓ - and L-valley separation cover MWIR range.
MoreTranslated text
Key words
SiGeSn,charge separation,band-structure engineering,photodetector,MWIR
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined