@article{2bf1b9f8825c4c95a5f7ab1e6f6b69a7,
title = "Comparison of intersubband quantum-well and interband graphene-layer infrared photodetectors",
abstract = "We compare the characteristics of the intersubband quantum-well infrared photodetectors (QWIPs) based on the traditional semiconductor materials and the interband graphene-layer infrared photodetectors (GLIPs) based on van der Waals heterostructures. We show that the responsivity and dark-current-limited detectivity of GLIPs exceed those of QWIPs. This is because of a stronger radiation interband absorption in the GLs, a smaller capture probability of electrons into the GLs, and a higher activation energy of the electron thermionic and tunneling escape from the GLs in comparison with those in the QWs.",
keywords = "Graphene, Infrared photodetector, Quantum well, Van der Waals heterostructure",
author = "Victor Ryzhii and Taichi Otsuji and Karasik, {Valery E.} and Maxim Ryzhii and Leiman, {Vladimir G.} and Vladimir Mitin and Shur, {Michael S.}",
note = "Funding Information: Manuscript received September 29, 2017; revised January 9, 2018; accepted January 21, 2018. Date of publication January 25, 2018; date of current version February 6, 2018. This work was supported in part by the Japan Society for Promotion of Science, KAKENHI under Grant 16H06361 and Grant 16K14243. The work of V. Ryzhii was supported by the Russian Scientific Foundation under Grant 14-29-00277. The work of V. G. Leiman was supported by the Russian Foundation for Basic Research under Grant 16-29-03402 and Grant 16-29-03432. The work was supported in part by the RIEC Nation-Wide Cooperative Research Project, and in part by the US ARL. (Corresponding author: Victor Ryzhii.) V. Ryzhii is with the Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan, also with the Institute of Ultrahigh Frequency Semiconductor Electronics, Russian Academy of Sciences, 117105 Moscow, Russia, and also with the Research Center of Photonics and Infrared Engineering, Bauman Moscow State Technical University, 105005 Moscow, Russia (e-mail: v-ryzhii@riec.tohoku.ac.jp). Publisher Copyright: {\textcopyright} 2018 IEEE.",
year = "2018",
month = apr,
doi = "10.1109/JQE.2018.2797912",
language = "English",
volume = "54",
journal = "IEEE Journal of Quantum Electronics",
issn = "0018-9197",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",
}