Control of the size and composition of three dimensionally diluted magnetic semiconductor clusters

L. Levy; J. F. Hochepied; M. P. Pileni

doi:10.1021/jp960824w

Control of the size and composition of three dimensionally diluted magnetic semiconductor clusters

L. Levy
, J. F. Hochepied
, M. P. Pileni

URA CNRS 1662, Univ. P M Curie, P.
Institut Pierre Simon Laplace, CNRS and CEA

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

Syntheses of diluted magnetic semiconductor Cd_1-yMn_yS nanoparticles varying in size from 1.9 to 3.5 nm and composition, y, from 0 to 0.3 have been performed in reverse micelles. Size and composition, y, of the particles are controlled independently. The particles are characterized by TEM, EDS, and EPR. Manganese ions are substituted randomly in the CdS matrix. Optical absorption studies show, at fixed composition, a quantum size effect. At fixed size a nonlinear variation of the band gap versus composition is observed. This effect already observed in the bulk phase is more pronounced with quantum dots.

langue originale	Anglais
Pages (de - à)	18322-18326
Nombre de pages	5
journal	Journal of Physical Chemistry
Volume	100
Numéro de publication	47
Les DOIs	https://doi.org/10.1021/jp960824w
état	Publié - 21 nov. 1996
Modification externe	Oui

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10.1021/jp960824w

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title = "Control of the size and composition of three dimensionally diluted magnetic semiconductor clusters",

abstract = "Syntheses of diluted magnetic semiconductor Cd1-yMnyS nanoparticles varying in size from 1.9 to 3.5 nm and composition, y, from 0 to 0.3 have been performed in reverse micelles. Size and composition, y, of the particles are controlled independently. The particles are characterized by TEM, EDS, and EPR. Manganese ions are substituted randomly in the CdS matrix. Optical absorption studies show, at fixed composition, a quantum size effect. At fixed size a nonlinear variation of the band gap versus composition is observed. This effect already observed in the bulk phase is more pronounced with quantum dots.",

author = "L. Levy and Hochepied, \{J. F.\} and Pileni, \{M. P.\}",

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AU - Hochepied, J. F.

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Y1 - 1996/11/21

N2 - Syntheses of diluted magnetic semiconductor Cd1-yMnyS nanoparticles varying in size from 1.9 to 3.5 nm and composition, y, from 0 to 0.3 have been performed in reverse micelles. Size and composition, y, of the particles are controlled independently. The particles are characterized by TEM, EDS, and EPR. Manganese ions are substituted randomly in the CdS matrix. Optical absorption studies show, at fixed composition, a quantum size effect. At fixed size a nonlinear variation of the band gap versus composition is observed. This effect already observed in the bulk phase is more pronounced with quantum dots.

AB - Syntheses of diluted magnetic semiconductor Cd1-yMnyS nanoparticles varying in size from 1.9 to 3.5 nm and composition, y, from 0 to 0.3 have been performed in reverse micelles. Size and composition, y, of the particles are controlled independently. The particles are characterized by TEM, EDS, and EPR. Manganese ions are substituted randomly in the CdS matrix. Optical absorption studies show, at fixed composition, a quantum size effect. At fixed size a nonlinear variation of the band gap versus composition is observed. This effect already observed in the bulk phase is more pronounced with quantum dots.

U2 - 10.1021/jp960824w

DO - 10.1021/jp960824w

M3 - Article

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JO - Journal of Physical Chemistry

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ER -

Control of the size and composition of three dimensionally diluted magnetic semiconductor clusters

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