Voltage-tunable terahertz and infrared photodetectors based on double-graphene-layer structures

V. Ryzhii, T. Otsuji, V. Ya Aleshkin, A. A. Dubinov, M. Ryzhii, V. Mitin, M. S. Shur

研究成果: Article査読

26 被引用数 (Scopus)

抄録

We propose and theoretically substantiate the concept of terahertz and infrared photodetectors using the resonant radiative transitions between graphene layers (GLs) in double-GL structures. The calculated absorption spectrum and the spectral characteristics of the photodetector responsivity exhibit sharp resonant maxima at the photon energies in a wide range. The resonant maxima can be tuned by the applied voltage. We compare the photodetector responsivity with that of the GL p-i-n photodiodes and quantum-well infrared photodetectors. Weak temperature dependences of the photocurrent and dark current enable the effective operation of the proposed photodetector at room temperature.

本文言語English
論文番号163505
ジャーナルApplied Physics Letters
104
16
DOI
出版ステータスPublished - 2014 4 21

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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