Atomic scale structure and optical emission of AlxGa1-xAs/GaAs quantum wells

Ropers  C; Wenderoth  M; Winking  LReusch  TCGErdmann  MUlbrich  RGGrochol  MGrosse  FZimmermann  RMalzer  S

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Atomic scale structure and optical emission of AlxGa1-xAs/GaAs quantum wells

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A combined study of the optical and structural properties of AlGaAs/GaAs quantum wells is presented. Microphotoluminescence experiments, magnetomicrophotoluminescence, and atomically resolved cross-sectional scanning tunneling microscopy were performed on the same quantum well sample. Constant-current topographs with aluminum and/or gallium sensitivity are used to directly extract disorder potentials. Using these potentials, exciton absorption spectra, microphotoluminescence spectra, and diamagnetic shifts of individual exciton states are calculated in an envelope function approximation. Very good agreement between the theoretical and experimental results is found.

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来源
《Physical review, B. Condensed matter and materials physics》 |2007年第11期|5317-1-5317-7-0|共7页
作者
Ropers C; Wenderoth M; Winking LReusch TCGErdmann MUlbrich RGGrochol MGrosse FZimmermann RMalzer S;
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作者单位

Univ Gottingen, Inst Phys, D-37077 Gottingen, Germany;

Humboldt Univ, Inst Phys, D-12489 Berlin, Germany;

Univ Erlangen Nurnberg, Max Planck Res Grp, Inst Opt Informat & Photon, D-91058 Erlangen, Germany;

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原文格式 PDF
正文语种英语
中图分类固体物理学;
关键词
EXCITON BINDING-ENERGY; SEMICONDUCTOR NANOSTRUCTURES; MASS; NONPARABOLICITY; THERMALIZATION; FLUCTUATIONS; LOCALIZATION; DOTS;

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1. Optical phonon emission in GaAs/AlAs and GaAs/Al0.7Ga0.3As multiple quantum well structures [J] . Sun KW., Chang HY., Wang SY.Lee CP.Wang CM. Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter . 2000,第2期

机译：Optical phonon emission in GaAs/AlAs and GaAs/Al0.7Ga0.3As multiple quantum well structures
2. Optical properties of GaAs/AlxGa1-xAs/GaAs quantum dot with off-central impurity driven by electric field [J] . Holovatsky V. A., Yakhnevych M. Ya., Voitsekhivska O. M. condensed matter physics . 2018,第1期

机译：Optical properties of GaAs/AlxGa1-xAs/GaAs quantum dot with off-central impurity driven by electric field
3. A detailed investigation of electronic and optical properties of single exciton in GaAs/AlxGa1-xAs/GaAs/ AlyGa1-yAs multi-shell quantum dot [J] . Ahmet Emre Kavruk Philosophical magazine: structure and properties of condensed matter . 2018,第36期

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Atomic scale structure and optical emission of AlxGa1-xAs/GaAs quantum wells

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