The Role of Groove Periodicity in the Formation of Site-Controlled Quantum Dot Chains

Andreas Schramm; Teemu V. Hakkarainen; Juha Tommila; Mircea Guina

doi:10.1186/s11671-015-0938-8

The Role of Groove Periodicity in the Formation of Site-Controlled Quantum Dot Chains

Andreas Schramm, Teemu V. Hakkarainen, Juha Tommila, Mircea Guina

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

6 Sitaatiot (Scopus)

Abstrakti

Structural and optical properties of InAs quantum dot (QD) chains formed in etched GaAs grooves having different periods from 200 to 2000 nm in [010] orientation are reported. The site-controlled QDs were fabricated by molecular beam epitaxy on soft UV-nanoimprint lithography-patterned GaAs(001) surfaces. Increasing the groove periods decreases the overall QD density but increases the QD size and the linear density along the groove direction. The effect of the increased QD size with larger periods is reflected in ensemble photoluminescence measurements as redshift of the QD emission. Furthermore, we demonstrate the photoluminescence emission from single QD chains.

Alkuperäiskieli	Englanti
Artikkeli	242
Sivut	1-6
Sivumäärä	6
Julkaisu	Nanoscale Research Letters
Vuosikerta	10
DOI - pysyväislinkit	https://doi.org/10.1186/s11671-015-0938-8
Tila	Julkaistu - 28 toukok. 2015
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Julkaisufoorumi-taso

Jufo-taso 1

Pääsy asiakirjaan

10.1186/s11671-015-0938-8

Siteeraa tätä

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title = "The Role of Groove Periodicity in the Formation of Site-Controlled Quantum Dot Chains",

abstract = "Structural and optical properties of InAs quantum dot (QD) chains formed in etched GaAs grooves having different periods from 200 to 2000 nm in [010] orientation are reported. The site-controlled QDs were fabricated by molecular beam epitaxy on soft UV-nanoimprint lithography-patterned GaAs(001) surfaces. Increasing the groove periods decreases the overall QD density but increases the QD size and the linear density along the groove direction. The effect of the increased QD size with larger periods is reflected in ensemble photoluminescence measurements as redshift of the QD emission. Furthermore, we demonstrate the photoluminescence emission from single QD chains.",

keywords = "III-V semiconductors, InAs Quantum dots, Site-controlled quantum dots, Molecular beam epitaxy, Nanoimprint lithography, PHOTON TURNSTILE, EMISSION, GROWTH, DEVICE",

author = "Andreas Schramm and Hakkarainen, {Teemu V.} and Juha Tommila and Mircea Guina",

year = "2015",

month = may,

day = "28",

doi = "10.1186/s11671-015-0938-8",

language = "English",

volume = "10",

pages = "1--6",

journal = "Nanoscale Research Letters",

issn = "1556-276X",

publisher = "Springer New York",

}

TY - JOUR

T1 - The Role of Groove Periodicity in the Formation of Site-Controlled Quantum Dot Chains

AU - Schramm, Andreas

AU - Hakkarainen, Teemu V.

AU - Tommila, Juha

AU - Guina, Mircea

PY - 2015/5/28

Y1 - 2015/5/28

N2 - Structural and optical properties of InAs quantum dot (QD) chains formed in etched GaAs grooves having different periods from 200 to 2000 nm in [010] orientation are reported. The site-controlled QDs were fabricated by molecular beam epitaxy on soft UV-nanoimprint lithography-patterned GaAs(001) surfaces. Increasing the groove periods decreases the overall QD density but increases the QD size and the linear density along the groove direction. The effect of the increased QD size with larger periods is reflected in ensemble photoluminescence measurements as redshift of the QD emission. Furthermore, we demonstrate the photoluminescence emission from single QD chains.

AB - Structural and optical properties of InAs quantum dot (QD) chains formed in etched GaAs grooves having different periods from 200 to 2000 nm in [010] orientation are reported. The site-controlled QDs were fabricated by molecular beam epitaxy on soft UV-nanoimprint lithography-patterned GaAs(001) surfaces. Increasing the groove periods decreases the overall QD density but increases the QD size and the linear density along the groove direction. The effect of the increased QD size with larger periods is reflected in ensemble photoluminescence measurements as redshift of the QD emission. Furthermore, we demonstrate the photoluminescence emission from single QD chains.

KW - III-V semiconductors

KW - InAs Quantum dots

KW - Site-controlled quantum dots

KW - Molecular beam epitaxy

KW - Nanoimprint lithography

KW - PHOTON TURNSTILE

KW - EMISSION

KW - GROWTH

KW - DEVICE

U2 - 10.1186/s11671-015-0938-8

DO - 10.1186/s11671-015-0938-8

M3 - Article

SN - 1556-276X

VL - 10

SP - 1

EP - 6

JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

M1 - 242

ER -

The Role of Groove Periodicity in the Formation of Site-Controlled Quantum Dot Chains

Abstrakti

Julkaisufoorumi-taso

Pääsy asiakirjaan

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