Suppression of Persistent Photoconductivity in AlGaN/GaN Ultraviolet Photodetectors Using In Situ Heating

@article{Hou2017SuppressionOP,
  title={Suppression of Persistent Photoconductivity in AlGaN/GaN Ultraviolet Photodetectors Using In Situ Heating},
  author={Minmin Hou and Hongyun So and Ateeq J. Suria and Ananth Saran Yalamarthy and Debbie G. Senesky},
  journal={IEEE Electron Device Letters},
  year={2017},
  volume={38},
  pages={56-59}
}
Photodetectors based on the AlGaN/GaN heterostructure suffer from persistent photoconductivity (PPC) in which recovery from the optical stimulus can take days. This behavior is unsuitable for many applications where reliable and consistent optical response is required. This letter presents a method for suppressing PPC in AlGaN/GaN photodetectors by employing device suspension and in situ heating. The highly conductive two-dimensional electron gas (2DEG) at the interface of AlGaN and GaN serves… CONTINUE READING

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