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Defects in HgCdTe grown by molecular beam epitaxy on GaAs substrates

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The Hall effect and photoluminescence measurements combined with annealing and/or ion milling were used to study the electrical and optical properties of HgCdTe films grown by molecular-beam epitaxy on GaAs substrates with ZnTe and CdTe buffer layers. Unintentional donor doping, likely from the substrate, which resulted in residual donor concentration of the order of 10¹⁵ cm⁻³, was observed in the films. Also, acceptor states, possibly related to structural defects, were observed.
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Bibliografia
  • [1] M. Carmody, A. Yulius, D. Edwall, D. Lee, E. Piquette, R. Jacobs, D. Benson, A. Stoltz, J. Markunas, A. Almeida, and J. Arias: Recent progress in MBE growth of CdTe and HgCdTe on (211)B GaAs substrates. J. Electron. Mater. 41, DOI: 10.1007/s11664-012-2129-z (2012).
  • [2] M. Kinch: HgCdTe: recent trends in the ultimate IR semiconductor. J. Electron. Mater. 39, 1043-1052 (2010).
  • [3] I. I. Izhnin, A. I. Izhnin, H. V. Savytskyy, M. M. Vakiv, Y. M. Stakhira, O. E. Fitsych, M. V. Yakushev, A. V. Sorochkin, I. V. Sabinina, S. A. Dvoretsky, Yu. G. Sidorov, V. S. Varavin, M. Pociask-Bialy, and K. D. Mynbaev: Defect structure of HgCdTe films grown by molecular beam epitaxy on Si substrates. Semicond. Sci. Technol. 27, 035001 (2012).
  • [4] V. S. Varavin, V. V. Vasiliev, S. A. Dvoretsky, N. N. Mikhailov, V. N. Ovsyuk, Yu.G. Sidorov, A. O. Suslyakov, M. V. Yakushev, and A. L. Aseev: HgCdTe epilayers on GaAs: growth and devices. Opto-Electron. Rev. 11, 99-111 (2003).
  • [5] M. Pociask, I. I. Izhnin, S. A. Dvoretsky, N. N. Mikhailov, Yu. G. Sidorov, V. S. Varavin, K. D. Mynbaev, and E. Sheregii: Ion-milling-assisted study of defect structure of acceptor-doped HgCdTe heterostructures grown by molecular beam epitaxy. Semicond. Sci. Technol. 23, 095001 (2008).
  • [6] I. I. Izhnin, I. A. Denisov, N. A. Smirnova, M. Pociask, and K. D. Mynbaev: Ion-milling assisted study of defect structure of HgCdTe films grown by liquid phase epitaxy. Opto-Electron. Rev. 18, 328-331 (2010).
  • [7] M. Pociask, I. I. Izhnin, A. I. Izhnin, S. A. Dvoretsky, N. N. Mikhailov, Yu. G. Sidorov, V. S. Varavin, and K. D. Mynbaev: Donor doping of HgCdTe for LWIR and MWIR structures fabricated with ion milling. Semicond. Sci. Technol. 24, 025031 (2009).
  • [8] M. Pociask: The study of HgCdTe MBE-grown structures with ion milling. Opto-Electron. Rev. 18, 338-341 (2010).
  • [9] K. D. Mynbaev, N. L. Bazhenov, V. I. Ivanov-Omski, N. N. Mikhailov, M. V. Yakushev, A. V. Sorochkin, S. A. Dvoretsky, V. S. Varavin, and Yu. G. Sidorov: Photoluminescence of Hg1-xCdxTe based heterostructures grown by molecular-beam epitaxy. Semiconductors 45, 872-879 (2011).
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Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWAD-0027-0021
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