V. V. Rumyantsev, K. V. Marem'yanin, A. A. Razova, S. M. Sergeev, N. N. Mikhailov, S. A. Dvoretskii, V. I. Gavrilenko, S. V. Morozov, “Investigation of the photosensitivity of narrow-gap and gapless HgCdTe solid solutions in the terahertz and sub-terahertz range”, Fizika i Tekhnika Poluprovodnikov, 2020, Volume 54, Issue 9,Pages <nobr>906

This article is cited in 2 papers

XXIV International symposium Nanophysics and nanoelectronics, Nizhny Novgorod, march 10-13, 2020

Investigation of the photosensitivity of narrow-gap and gapless HgCdTe solid solutions in the terahertz and sub-terahertz range

V. V. Rumyantsev^ab, K. V. Marem'yanin^ab, A. A. Razova^ab, S. M. Sergeev^a, N. N. Mikhailov^c, S. A. Dvoretskii^c, V. I. Gavrilenko^ab, S. V. Morozov^ab

^a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
^b Lobachevsky State University of Nizhny Novgorod
^c Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: The photoresponse is investigated in the frequency range of 0.15 – 15 THz in HgCdTe epitaxial layers with a cadmium concentration from 15.2 to 19.2% grown by molecular-beam epitaxy. It is shown that narrow-gap and gapless HgCdTe solid solutions can be used as detectors of both terahertz and sub-terahertz radiation with a characteristic response time of 2 – 4 ns and with a sensitivity approaching n -InSb-based detectors widely used in this range.

Keywords: terahertz radiation, HgCdTe, photoelectric detectors, photoconductivity.

Received: 15.04.2020
Revised: 21.04.2020
Accepted: 21.04.2020

DOI: 10.21883/FTP.2020.09.49830.22