Fine structure of emission lines from Basic solid state physics charged CdSe/ZnSe/ZnMnSe quantum dots

Standard

Fine structure of emission lines from Basic solid state physics charged CdSe/ZnSe/ZnMnSe quantum dots. / Chekhovich, E. A.; Brichkin, A. S.; Kulakovskii, V. D.; Toropov, A. A.; Glazov, M. M.

In: Physica Status Solidi (B) Basic Research, Vol. 247, No. 6, 01.06.2010, p. 1535-1538.

Research output: Contribution to journal › Article › peer-review

Author

Chekhovich, E. A. ; Brichkin, A. S. ; Kulakovskii, V. D. ; Toropov, A. A. ; Glazov, M. M. / Fine structure of emission lines from Basic solid state physics charged CdSe/ZnSe/ZnMnSe quantum dots. In: Physica Status Solidi (B) Basic Research. 2010 ; Vol. 247, No. 6. pp. 1535-1538.

BibTeX

@article{e2066696d4294a1ebeb762fdb10304ef,

title = "Fine structure of emission lines from Basic solid state physics charged CdSe/ZnSe/ZnMnSe quantum dots",

abstract = "Photoluminescence spectroscopy has been employed to study CdSe/ZnSe/ZnMnSe quantum dots. For most of the dots studied here luminescence comes in three spectrally separated features: neutral exciton (X), biexciton (XX), and charged exciton (XC) states. Spectral properties of X and XX emission are well understood, however, in a marked contrast with previous studies, the observed fine structure of XC can not be explained within a commonly accepted model of a ground state trion luminescence. We find that at zero magnetic field luminescence from the charged state exhibits fine structure that varies gradually between different dots from a single unpolarized line to a quartet with the maximum splitting of 2 meV. Several models including magnetic polaron formation and double charging have been considered, but a plausible explanation can be given only if one considers the influence of a charge trapped in a nearby dot.",

keywords = "II-VI semiconductors, Magnetic semiconductors, Quantum dots",

author = "Chekhovich, {E. A.} and Brichkin, {A. S.} and Kulakovskii, {V. D.} and Toropov, {A. A.} and Glazov, {M. M.}",

year = "2010",

month = jun,

day = "1",

doi = "10.1002/pssb.200983182",

language = "English",

volume = "247",

pages = "1535--1538",

journal = "Physica Status Solidi (B): Basic Research",

issn = "0370-1972",

publisher = "Wiley-Blackwell",

number = "6",

}

RIS

TY - JOUR

T1 - Fine structure of emission lines from Basic solid state physics charged CdSe/ZnSe/ZnMnSe quantum dots

AU - Chekhovich, E. A.

AU - Brichkin, A. S.

AU - Kulakovskii, V. D.

AU - Toropov, A. A.

AU - Glazov, M. M.

PY - 2010/6/1

Y1 - 2010/6/1

N2 - Photoluminescence spectroscopy has been employed to study CdSe/ZnSe/ZnMnSe quantum dots. For most of the dots studied here luminescence comes in three spectrally separated features: neutral exciton (X), biexciton (XX), and charged exciton (XC) states. Spectral properties of X and XX emission are well understood, however, in a marked contrast with previous studies, the observed fine structure of XC can not be explained within a commonly accepted model of a ground state trion luminescence. We find that at zero magnetic field luminescence from the charged state exhibits fine structure that varies gradually between different dots from a single unpolarized line to a quartet with the maximum splitting of 2 meV. Several models including magnetic polaron formation and double charging have been considered, but a plausible explanation can be given only if one considers the influence of a charge trapped in a nearby dot.

AB - Photoluminescence spectroscopy has been employed to study CdSe/ZnSe/ZnMnSe quantum dots. For most of the dots studied here luminescence comes in three spectrally separated features: neutral exciton (X), biexciton (XX), and charged exciton (XC) states. Spectral properties of X and XX emission are well understood, however, in a marked contrast with previous studies, the observed fine structure of XC can not be explained within a commonly accepted model of a ground state trion luminescence. We find that at zero magnetic field luminescence from the charged state exhibits fine structure that varies gradually between different dots from a single unpolarized line to a quartet with the maximum splitting of 2 meV. Several models including magnetic polaron formation and double charging have been considered, but a plausible explanation can be given only if one considers the influence of a charge trapped in a nearby dot.

KW - II-VI semiconductors

KW - Magnetic semiconductors

KW - Quantum dots

UR - http://www.scopus.com/inward/record.url?scp=77954170539&partnerID=8YFLogxK

U2 - 10.1002/pssb.200983182

DO - 10.1002/pssb.200983182

M3 - Article

AN - SCOPUS:77954170539

VL - 247

SP - 1535

EP - 1538

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

SN - 0370-1972

IS - 6

ER -

ID: 36443292