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Photoluminescence spectra of CdTe multi-quantum wells sandwiched by ultrathin MnTe layers and their temperature dependence. / Iwamitsu, Kazunori; Hatada, Kyosuke; Ichigozaki, Syou; Hatada, Naoki; Shimamoto, Tomoshige; Akai, Ichiro; Serov, Aleksei Yu; Filosofov, Nikolai G.; Karczewski, Grzegorz; Agekian, Vadim F.

In: Journal of Luminescence, Vol. 169, 01.2016, p. 665-668.

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Iwamitsu, Kazunori ; Hatada, Kyosuke ; Ichigozaki, Syou ; Hatada, Naoki ; Shimamoto, Tomoshige ; Akai, Ichiro ; Serov, Aleksei Yu ; Filosofov, Nikolai G. ; Karczewski, Grzegorz ; Agekian, Vadim F. / Photoluminescence spectra of CdTe multi-quantum wells sandwiched by ultrathin MnTe layers and their temperature dependence. In: Journal of Luminescence. 2016 ; Vol. 169. pp. 665-668.

BibTeX

@article{9c8752a0371c40e5bb31b08af933d944,
title = "Photoluminescence spectra of CdTe multi-quantum wells sandwiched by ultrathin MnTe layers and their temperature dependence",
abstract = "To study the energy transfer (ET) between the Mn2+ intra-center luminescence (IL) state and the band state in CdTe quantum wells (QWs), we studied the temperature dependences of the photoluminescence (PL) spectra of the CdTe multi-QWs sandwiched by ultrathin MnTe layers and found an anomalous thermal variation of their PL intensities. With elevating temperature, the PL intensities of the thinner QWs having 4 and 8 monolayers (MLs) remain at rather high temperatures than 100 K despite the PL of the thicker QWs disappears rapidly. In the thinner QWs, the PL bands appear in an overlap region with the Mn2+ IL-band and energy transfer is expected between the IL-state and the band states in the thinner QWs. The anomalous thermal variations of the PL intensities can be explained by considering the ET and the role of Mn2+ IL-state as reservoir states against the thermal quenching processes.",
keywords = "CdTe, MnTe, Energy transfer",
author = "Kazunori Iwamitsu and Kyosuke Hatada and Syou Ichigozaki and Naoki Hatada and Tomoshige Shimamoto and Ichiro Akai and Serov, {Aleksei Yu} and Filosofov, {Nikolai G.} and Grzegorz Karczewski and Agekian, {Vadim F.}",
note = "Funding Information: This work was supported by a research grant from The Murata Science Foundation and a research Grant 11.37.646.2013 from Saint-Petersburg State University. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.",
year = "2016",
month = jan,
doi = "10.1016/j.jlumin.2015.05.006",
language = "English",
volume = "169",
pages = "665--668",
journal = "Journal of Luminescence",
issn = "0022-2313",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Photoluminescence spectra of CdTe multi-quantum wells sandwiched by ultrathin MnTe layers and their temperature dependence

AU - Iwamitsu, Kazunori

AU - Hatada, Kyosuke

AU - Ichigozaki, Syou

AU - Hatada, Naoki

AU - Shimamoto, Tomoshige

AU - Akai, Ichiro

AU - Serov, Aleksei Yu

AU - Filosofov, Nikolai G.

AU - Karczewski, Grzegorz

AU - Agekian, Vadim F.

N1 - Funding Information: This work was supported by a research grant from The Murata Science Foundation and a research Grant 11.37.646.2013 from Saint-Petersburg State University. Publisher Copyright: © 2015 Elsevier B.V. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.

PY - 2016/1

Y1 - 2016/1

N2 - To study the energy transfer (ET) between the Mn2+ intra-center luminescence (IL) state and the band state in CdTe quantum wells (QWs), we studied the temperature dependences of the photoluminescence (PL) spectra of the CdTe multi-QWs sandwiched by ultrathin MnTe layers and found an anomalous thermal variation of their PL intensities. With elevating temperature, the PL intensities of the thinner QWs having 4 and 8 monolayers (MLs) remain at rather high temperatures than 100 K despite the PL of the thicker QWs disappears rapidly. In the thinner QWs, the PL bands appear in an overlap region with the Mn2+ IL-band and energy transfer is expected between the IL-state and the band states in the thinner QWs. The anomalous thermal variations of the PL intensities can be explained by considering the ET and the role of Mn2+ IL-state as reservoir states against the thermal quenching processes.

AB - To study the energy transfer (ET) between the Mn2+ intra-center luminescence (IL) state and the band state in CdTe quantum wells (QWs), we studied the temperature dependences of the photoluminescence (PL) spectra of the CdTe multi-QWs sandwiched by ultrathin MnTe layers and found an anomalous thermal variation of their PL intensities. With elevating temperature, the PL intensities of the thinner QWs having 4 and 8 monolayers (MLs) remain at rather high temperatures than 100 K despite the PL of the thicker QWs disappears rapidly. In the thinner QWs, the PL bands appear in an overlap region with the Mn2+ IL-band and energy transfer is expected between the IL-state and the band states in the thinner QWs. The anomalous thermal variations of the PL intensities can be explained by considering the ET and the role of Mn2+ IL-state as reservoir states against the thermal quenching processes.

KW - CdTe

KW - MnTe

KW - Energy transfer

UR - http://www.scopus.com/inward/record.url?scp=84949088444&partnerID=8YFLogxK

U2 - 10.1016/j.jlumin.2015.05.006

DO - 10.1016/j.jlumin.2015.05.006

M3 - Article

VL - 169

SP - 665

EP - 668

JO - Journal of Luminescence

JF - Journal of Luminescence

SN - 0022-2313

ER -

ID: 7546883