Intense monochromatic light emission from multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers

Yutaka Ohno; Naoki Yamamoto; Kaoru Shoda; Seiji Takeda

doi:10.1143/JJAP.46.L830

Intense monochromatic light emission from multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers

Yutaka Ohno, Naoki Yamamoto, Kaoru Shoda, Seiji Takeda

Materials Design Division

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

11 Citations (Scopus)

Abstract

The optical properties of multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers were studied. Twin boundaries of Σ3-type, extended on {111}B, were self-organized in an epilayer during the epitaxial growth on an AlGaAs(001) substrate by metal-organic vapor-phase epitaxy. Polarized cathodoluminescence spectroscopy in a transmission electron microscope revealed that a set of parallel twin boundaries arranged at similar intervals of nanometer length emits an intense monochromatic light polarized parallel to the boundaries. The photon energy was tunable by controlling the intervals of the boundaries, without changing the crystal structure and the composition.

Original language	English
Pages (from-to)	L830-L832
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	46
Issue number	33-35
DOIs	https://doi.org/10.1143/JJAP.46.L830
Publication status	Published - 2007 Sep 7

Keywords

Band-structure engineering
Indirect-gap AlGaAs epllayers
Multiple nanoscale twin boundaries
Polarized cathodolumlnescence spectroscopy
Transmission electron microscopy

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.46.L830

Fingerprint Dive into the research topics of 'Intense monochromatic light emission from multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers'. Together they form a unique fingerprint.

Cite this

@article{2a0ed9abac374b2a98a58af6741b30e0,

title = "Intense monochromatic light emission from multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers",

abstract = "The optical properties of multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers were studied. Twin boundaries of Σ3-type, extended on {111}B, were self-organized in an epilayer during the epitaxial growth on an AlGaAs(001) substrate by metal-organic vapor-phase epitaxy. Polarized cathodoluminescence spectroscopy in a transmission electron microscope revealed that a set of parallel twin boundaries arranged at similar intervals of nanometer length emits an intense monochromatic light polarized parallel to the boundaries. The photon energy was tunable by controlling the intervals of the boundaries, without changing the crystal structure and the composition.",

keywords = "Band-structure engineering, Indirect-gap AlGaAs epllayers, Multiple nanoscale twin boundaries, Polarized cathodolumlnescence spectroscopy, Transmission electron microscopy",

author = "Yutaka Ohno and Naoki Yamamoto and Kaoru Shoda and Seiji Takeda",

year = "2007",

month = sep,

day = "7",

doi = "10.1143/JJAP.46.L830",

language = "English",

volume = "46",

pages = "L830--L832",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "33-35",

}

TY - JOUR

T1 - Intense monochromatic light emission from multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers

AU - Ohno, Yutaka

AU - Yamamoto, Naoki

AU - Shoda, Kaoru

AU - Takeda, Seiji

PY - 2007/9/7

Y1 - 2007/9/7

N2 - The optical properties of multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers were studied. Twin boundaries of Σ3-type, extended on {111}B, were self-organized in an epilayer during the epitaxial growth on an AlGaAs(001) substrate by metal-organic vapor-phase epitaxy. Polarized cathodoluminescence spectroscopy in a transmission electron microscope revealed that a set of parallel twin boundaries arranged at similar intervals of nanometer length emits an intense monochromatic light polarized parallel to the boundaries. The photon energy was tunable by controlling the intervals of the boundaries, without changing the crystal structure and the composition.

AB - The optical properties of multiple nanoscale twin boundaries in indirect-gap AlGaAs epilayers were studied. Twin boundaries of Σ3-type, extended on {111}B, were self-organized in an epilayer during the epitaxial growth on an AlGaAs(001) substrate by metal-organic vapor-phase epitaxy. Polarized cathodoluminescence spectroscopy in a transmission electron microscope revealed that a set of parallel twin boundaries arranged at similar intervals of nanometer length emits an intense monochromatic light polarized parallel to the boundaries. The photon energy was tunable by controlling the intervals of the boundaries, without changing the crystal structure and the composition.

KW - Band-structure engineering

KW - Indirect-gap AlGaAs epllayers

KW - Multiple nanoscale twin boundaries

KW - Polarized cathodolumlnescence spectroscopy

KW - Transmission electron microscopy

UR - http://www.scopus.com/inward/record.url?scp=34648815087&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34648815087&partnerID=8YFLogxK

U2 - 10.1143/JJAP.46.L830

DO - 10.1143/JJAP.46.L830

M3 - Article

AN - SCOPUS:34648815087

VL - 46

SP - L830-L832

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 33-35

ER -