Micro photoluminescence spectra of CdTe and CdMnTe self-organized quantum dots

By using the numerical discretization method within the effective-mass approximation, we have theoretically investigated the exciton-related Raman scattering, interband absorption and photoluminescence in colloidal CdSe/CdS core/shell quantum dots ensemble. The interband optical absorption and photoluminescence spectra have been revealed for CdSe/CdS quantum dots, taking into account the size dispersion of the ensemble. Numerical calculation of the differential cross section has been presented for the exciton-related Stokes–Raman scattering in CdSe/CdS quantum dots ensemble with different mean sizes.

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Uniform formation process of self-organized InAs quantum dots

Journal of Crystal Growth ◽

10.1016/s0022-0248(01)02051-6 ◽

2002 ◽

Vol 237-239 ◽

pp. 1301-1306 ◽

Cited By ~ 26

Author(s):

Koichi Yamaguchi ◽

Toshiyuki Kaizu ◽

Kunihiko Yujobo ◽

Yoshikuni Saito

Keyword(s):

Quantum Dots ◽

Formation Process ◽

Inas Quantum Dots ◽

Self Organized

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Self-organized CdSe quantum dots onto cleaved GaAs (110) originating from Stranski–Krastanow growth mode

Applied Physics Letters ◽

10.1063/1.118427 ◽

1997 ◽

Vol 70 (24) ◽

pp. 3278-3280 ◽

Cited By ~ 52

Author(s):

Hyun-Chul Ko ◽

Doo-Cheol Park ◽

Yoichi Kawakami ◽

Shizuo Fujita ◽

Shigeo Fujita

Keyword(s):

Quantum Dots ◽

Growth Mode ◽

Cdse Quantum Dots ◽

Self Organized

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Excitonic Luminescence from Self-Organized Quantum Dots of CdTe Grown by Molecular Beam Epitaxy

Japanese Journal of Applied Physics ◽

10.1143/jjap.38.2524 ◽

1999 ◽

Vol 38 (Part 1, No. 4B) ◽

pp. 2524-2528 ◽

Cited By ~ 7

Author(s):

Shinji Kuroda ◽

Yoshikazu Terai ◽

Kôki Takita ◽

Tsuyoshi Okuno ◽

Yasuaki Masumoto

Keyword(s):

Quantum Dots ◽

Molecular Beam Epitaxy ◽

Molecular Beam ◽

Self Organized ◽

Excitonic Luminescence

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Temperature-Dependent Photoluminescence Spectra of PbSe Quantum Dots for Temperature Markers

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.482-484.2547 ◽

2012 ◽

Vol 482-484 ◽

pp. 2547-2550

Author(s):

Peng Fei Gu ◽

Ya Nan Wang ◽

Jia Jia Cao ◽

Yu Yan ◽

Tie Qiang Zhang ◽

...

Keyword(s):

Quantum Dots ◽

Temperature Sensitivity ◽

Peak Position ◽

Strong Temperature Dependence ◽

Photoluminescence Spectra ◽

Temperature Dependent ◽

Temperature Variations ◽

Temperature Changes ◽

Optical Readout ◽

Temperature Dependent Photoluminescence

We here report the temperature effect on photoluminescence(PL) spectra of PbSe quantum dots (QDs), which exhibit a strong temperature dependence on their spectra position and intensity. They potentially act as the temperature marker, sensing temperature variations and reporting temperature changes remotely through optical readout. In addition, the temperature sensitivity characterized by peak position of PbSe QDs was found to be 0.39nm/°C in a range of 10-100 °C.

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Near-Field Magneto-Photoluminescence of Singe Self-Organized Quantum Dots.

MRS Proceedings ◽

10.1557/proc-794-t6.8/n8.8/z6.8 ◽

2003 ◽

Vol 794 ◽

Author(s):

A. M. Mintairov ◽

A. S. Vlasov ◽

J. L. Merz

Keyword(s):

Quantum Dots ◽

Near Field ◽

Energy Shift ◽

Zeeman Splitting ◽

Negative Energy ◽

Zero Magnetic Field ◽

Bimodal Size Distribution ◽

Self Organized ◽

Scanning Optical Microscopy ◽

Near Field Scanning

ABSTRACTWe present results obtained using low temperature near-field scanning optical microscopy for the measurements of Zeeman splitting and the diamagnetic shift of single self-organized InAs/AlAs, InAs/GaAs and InP/GaInP quantum dots. The measurements allow us to relate the bimodal size distribution of InAs dots with variations in In content. For single InP QDs we observed a strong circular polarization at zero magnetic field accompanied with a negative energy shift, suggesting that strong internal magnetic fields exist in these QDs.

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