Self-organized growth, ripening, and optical properties of wide-bandgap II-VI quantum dots

J. L. Merz; S. Lee; J. K. Furdyna

doi:10.1016/s0022-0248(98)80050-x

Self-organized growth, ripening, and optical properties of wide-bandgap II-VI quantum dots

J. L. Merz, S. Lee, J. K. Furdyna

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

69 Citations (Scopus)

Abstract

We discuss the formation of self-assembling II-VI quantum dots during MBE growth, with emphasis on CdSe dots grown on ZnSe. AFM measurements on specimens with uncapped dots show relatively narrow dot size distributions, with typical dot diameters of 35 ∓ 5 nm. Uncapped CdSe dots are unstable with time, showing clear evidence of ripening. Photoluminescence from capped dots indicates strong exciton localization, as evidenced by very intense PL emission even at relatively high temperatures.

Original language	English
Pages (from-to)	228-236
Number of pages	9
Journal	Journal of Crystal Growth
Volume	184-185
DOIs	https://doi.org/10.1016/s0022-0248(98)80050-x
Publication status	Published - 1998
Externally published	Yes

Keywords

AFM
II-VI semiconductors
Photoluminescence
Quantum dots
Ripening
Self-assembling

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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10.1016/s0022-0248(98)80050-x

Cite this

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title = "Self-organized growth, ripening, and optical properties of wide-bandgap II-VI quantum dots",

abstract = "We discuss the formation of self-assembling II-VI quantum dots during MBE growth, with emphasis on CdSe dots grown on ZnSe. AFM measurements on specimens with uncapped dots show relatively narrow dot size distributions, with typical dot diameters of 35 ∓ 5 nm. Uncapped CdSe dots are unstable with time, showing clear evidence of ripening. Photoluminescence from capped dots indicates strong exciton localization, as evidenced by very intense PL emission even at relatively high temperatures.",

keywords = "AFM, II-VI semiconductors, Photoluminescence, Quantum dots, Ripening, Self-assembling",

author = "Merz, {J. L.} and S. Lee and Furdyna, {J. K.}",

note = "Funding Information: We thank A.L. Barabasi, M. Dobrowolska, I. Daruka, and C. Kim for valuable discussions and insights; U. Bindley for her valuable help in the MBE growth of the samples; and M. Kim for help with PL measurments.T his researchw as supported by NSF Grant DMR 92-08400, ARPA/ONR Grant N00014-95-1-1166,a nd the NSF Science and Technology Center for Quantized Electronic Structures (QUEST), Grant DMR 91-20007.",

year = "1998",

doi = "10.1016/s0022-0248(98)80050-x",

language = "English",

volume = "184-185",

pages = "228--236",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier",

}

TY - JOUR

T1 - Self-organized growth, ripening, and optical properties of wide-bandgap II-VI quantum dots

AU - Merz, J. L.

AU - Lee, S.

AU - Furdyna, J. K.

N1 - Funding Information: We thank A.L. Barabasi, M. Dobrowolska, I. Daruka, and C. Kim for valuable discussions and insights; U. Bindley for her valuable help in the MBE growth of the samples; and M. Kim for help with PL measurments.T his researchw as supported by NSF Grant DMR 92-08400, ARPA/ONR Grant N00014-95-1-1166,a nd the NSF Science and Technology Center for Quantized Electronic Structures (QUEST), Grant DMR 91-20007.

PY - 1998

Y1 - 1998

N2 - We discuss the formation of self-assembling II-VI quantum dots during MBE growth, with emphasis on CdSe dots grown on ZnSe. AFM measurements on specimens with uncapped dots show relatively narrow dot size distributions, with typical dot diameters of 35 ∓ 5 nm. Uncapped CdSe dots are unstable with time, showing clear evidence of ripening. Photoluminescence from capped dots indicates strong exciton localization, as evidenced by very intense PL emission even at relatively high temperatures.

AB - We discuss the formation of self-assembling II-VI quantum dots during MBE growth, with emphasis on CdSe dots grown on ZnSe. AFM measurements on specimens with uncapped dots show relatively narrow dot size distributions, with typical dot diameters of 35 ∓ 5 nm. Uncapped CdSe dots are unstable with time, showing clear evidence of ripening. Photoluminescence from capped dots indicates strong exciton localization, as evidenced by very intense PL emission even at relatively high temperatures.

KW - AFM

KW - II-VI semiconductors

KW - Photoluminescence

KW - Quantum dots

KW - Ripening

KW - Self-assembling

UR - http://www.scopus.com/inward/record.url?scp=11544300407&partnerID=8YFLogxK

U2 - 10.1016/s0022-0248(98)80050-x

DO - 10.1016/s0022-0248(98)80050-x

M3 - Article

AN - SCOPUS:11544300407

SN - 0022-0248

VL - 184-185

SP - 228

EP - 236

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

ER -

Self-organized growth, ripening, and optical properties of wide-bandgap II-VI quantum dots

Abstract

Keywords

ASJC Scopus subject areas

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