Effective carrier confinement of a short-period GaAs/AlGaAs quantum wire array

Tae Geun Kim, Jung ho Park, Yong Kim, Seong Il Kim, Chang Sik Son, Moo Sung Kim, Eun Kyu Kim, Suk Ki Min

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Quantum wire (QWR) arrays grown on a GaAs substrate with V-grooved submicrometre gratings were investigated by high-resolution scanning electron microscopy (SEM) and temperature-dependent photoluminescence (PL) spectra. All samples were grown by atmospheric pressure metalorganic chemical vapour deposition (MOCVD). Elliptical QWR arrays having a central thickness of 20 nm and an effective width of 40 nm were produced at the bottom of the V-grooved gratings. An intense and sharp PL peak with a full width at half maximum (FWHM) of 6 meV was observed from the QWR array at 21 K, which shows a sufficient mode coupling among the neighbouring QWRs and an effective carrier confinement at the quantum wire subbands. The distinct temperature dependence of the PL spectra also provides evidence of a well-fabricated QWR array. The small variation of the FWHM and peak energy from the temperature-dependent PL spectra implies that the carrier confinement at the QWR subbands is retained up to elevated temperatures.

Original languageEnglish
Pages (from-to)1214-1217
Number of pages4
JournalSemiconductor Science and Technology
Volume11
Issue number8
DOIs
Publication statusPublished - 1996 Aug 1

Fingerprint

Semiconductor quantum wires
quantum wires
aluminum gallium arsenides
Photoluminescence
photoluminescence
Full width at half maximum
gratings
High resolution electron microscopy
Electron temperature
Metallorganic chemical vapor deposition
Temperature
coupled modes
Atmospheric pressure
metalorganic chemical vapor deposition
gallium arsenide
atmospheric pressure
electron energy
temperature dependence
Scanning electron microscopy
scanning electron microscopy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Effective carrier confinement of a short-period GaAs/AlGaAs quantum wire array. / Kim, Tae Geun; Park, Jung ho; Kim, Yong; Kim, Seong Il; Son, Chang Sik; Kim, Moo Sung; Kim, Eun Kyu; Min, Suk Ki.

In: Semiconductor Science and Technology, Vol. 11, No. 8, 01.08.1996, p. 1214-1217.

Research output: Contribution to journalArticle

Kim, Tae Geun ; Park, Jung ho ; Kim, Yong ; Kim, Seong Il ; Son, Chang Sik ; Kim, Moo Sung ; Kim, Eun Kyu ; Min, Suk Ki. / Effective carrier confinement of a short-period GaAs/AlGaAs quantum wire array. In: Semiconductor Science and Technology. 1996 ; Vol. 11, No. 8. pp. 1214-1217.
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AU - Kim, Seong Il

AU - Son, Chang Sik

AU - Kim, Moo Sung

AU - Kim, Eun Kyu

AU - Min, Suk Ki

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