Photoluminescence of CdSe nanocrystallites embedded in BaTiO3 matrix

Ji Zhou; Longtu Li; Zhilun Gui; S. Buddhudu; Yan Zhou

doi:10.1063/1.126089

Photoluminescence of CdSe nanocrystallites embedded in BaTiO₃ matrix

Ji Zhou^*, Longtu Li, Zhilun Gui, S. Buddhudu, Yan Zhou

^*Corresponding author for this work

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

46 Citations (Scopus)

Abstract

This letter reports the photoluminescence properties of CdSe quantum dots (QDs) embedded in a ferroelectric BaTiO₃ matrix. The main emission from the samples has been assigned to the band-edge transition of QDs. With an increase in the heat treatment temperature, the emission peak has been shifted to a longer wavelength. This shift has been attributed due to the dielectric environment effects of the matrix on the electronic structure of the QDs. The dependences of the peak position on the heat-treatment temperature and dot size are found in agreement with the theoretical simulation results reported previously.

Original language	English
Pages (from-to)	1540-1542
Number of pages	3
Journal	Applied Physics Letters
Volume	76
Issue number	12
DOIs	https://doi.org/10.1063/1.126089
Publication status	Published - Mar 20 2000
Externally published	Yes

ASJC Scopus Subject Areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.126089

Cite this

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abstract = "This letter reports the photoluminescence properties of CdSe quantum dots (QDs) embedded in a ferroelectric BaTiO3 matrix. The main emission from the samples has been assigned to the band-edge transition of QDs. With an increase in the heat treatment temperature, the emission peak has been shifted to a longer wavelength. This shift has been attributed due to the dielectric environment effects of the matrix on the electronic structure of the QDs. The dependences of the peak position on the heat-treatment temperature and dot size are found in agreement with the theoretical simulation results reported previously.",

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AU - Li, Longtu

AU - Gui, Zhilun

AU - Buddhudu, S.

AU - Zhou, Yan

PY - 2000/3/20

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AB - This letter reports the photoluminescence properties of CdSe quantum dots (QDs) embedded in a ferroelectric BaTiO3 matrix. The main emission from the samples has been assigned to the band-edge transition of QDs. With an increase in the heat treatment temperature, the emission peak has been shifted to a longer wavelength. This shift has been attributed due to the dielectric environment effects of the matrix on the electronic structure of the QDs. The dependences of the peak position on the heat-treatment temperature and dot size are found in agreement with the theoretical simulation results reported previously.

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