Growth of colloidal nanoparticles of group II-VI and IV-VI semiconductors on top of magnetic iron-platinum nanocrystals

Marco Zanella; Andrea Falqui; Stefan Kudera; Liberato Manna; Maria F. Casula; Wolfgang J. Parak

doi:10.1039/b804154g

Growth of colloidal nanoparticles of group II-VI and IV-VI semiconductors on top of magnetic iron-platinum nanocrystals

Marco Zanella, Andrea Falqui, Stefan Kudera, Liberato Manna, Maria F. Casula, Wolfgang J. Parak

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

48 Scopus citations

Abstract

Colloidal hybrid nanoparticles with blebs of II-VI and IV-VI particles on top of FePt particles were successfully grown. Whereas in the case of XE = CdS, ZnS, PbS and CdSe, FePt-XE dimer structures were successfully obtained, the growth failed for XE = ZnSe, PbSe. Structural, magnetic, and optical analysis of the structures revealed a moderate influence of the semiconductor domain on the magnetic properties of the FePt core particle, which can be ascribed to the effect of annealing conditions, atom diffusion and compositional variations during heterostructure formation. On the other hand, we report a significant fluorescence quenching of the semiconductor bleb due to the underlying FePt particle.

Original language	English (US)
Pages (from-to)	4311-4317
Number of pages	7
Journal	Journal of Materials Chemistry
Volume	18
Issue number	36
DOIs	https://doi.org/10.1039/b804154g
State	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

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title = "Growth of colloidal nanoparticles of group II-VI and IV-VI semiconductors on top of magnetic iron-platinum nanocrystals",

abstract = "Colloidal hybrid nanoparticles with blebs of II-VI and IV-VI particles on top of FePt particles were successfully grown. Whereas in the case of XE = CdS, ZnS, PbS and CdSe, FePt-XE dimer structures were successfully obtained, the growth failed for XE = ZnSe, PbSe. Structural, magnetic, and optical analysis of the structures revealed a moderate influence of the semiconductor domain on the magnetic properties of the FePt core particle, which can be ascribed to the effect of annealing conditions, atom diffusion and compositional variations during heterostructure formation. On the other hand, we report a significant fluorescence quenching of the semiconductor bleb due to the underlying FePt particle.",

author = "Marco Zanella and Andrea Falqui and Stefan Kudera and Liberato Manna and Casula, {Maria F.} and Parak, {Wolfgang J.}",

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doi = "10.1039/b804154g",

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pages = "4311--4317",

journal = "Journal of Materials Chemistry",

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publisher = "Royal Society of Chemistry",

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T1 - Growth of colloidal nanoparticles of group II-VI and IV-VI semiconductors on top of magnetic iron-platinum nanocrystals

AU - Zanella, Marco

AU - Falqui, Andrea

AU - Kudera, Stefan

AU - Manna, Liberato

AU - Casula, Maria F.

AU - Parak, Wolfgang J.

PY - 2008

Y1 - 2008

N2 - Colloidal hybrid nanoparticles with blebs of II-VI and IV-VI particles on top of FePt particles were successfully grown. Whereas in the case of XE = CdS, ZnS, PbS and CdSe, FePt-XE dimer structures were successfully obtained, the growth failed for XE = ZnSe, PbSe. Structural, magnetic, and optical analysis of the structures revealed a moderate influence of the semiconductor domain on the magnetic properties of the FePt core particle, which can be ascribed to the effect of annealing conditions, atom diffusion and compositional variations during heterostructure formation. On the other hand, we report a significant fluorescence quenching of the semiconductor bleb due to the underlying FePt particle.

AB - Colloidal hybrid nanoparticles with blebs of II-VI and IV-VI particles on top of FePt particles were successfully grown. Whereas in the case of XE = CdS, ZnS, PbS and CdSe, FePt-XE dimer structures were successfully obtained, the growth failed for XE = ZnSe, PbSe. Structural, magnetic, and optical analysis of the structures revealed a moderate influence of the semiconductor domain on the magnetic properties of the FePt core particle, which can be ascribed to the effect of annealing conditions, atom diffusion and compositional variations during heterostructure formation. On the other hand, we report a significant fluorescence quenching of the semiconductor bleb due to the underlying FePt particle.

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U2 - 10.1039/b804154g

DO - 10.1039/b804154g

M3 - Article

AN - SCOPUS:52349096883

SN - 0959-9428

VL - 18

SP - 4311

EP - 4317

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 36

ER -

Growth of colloidal nanoparticles of group II-VI and IV-VI semiconductors on top of magnetic iron-platinum nanocrystals

Abstract

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