Highly luminescent CdTe/CdSe colloidal heteronanocrystals with temperature-dependent emission color

P.T.K. Chin; C. de Mello Donega; S.S. van Bavel; S.C.J. Meskers; N.A.J.M. Sommerdijk; R.A.J. Jansen

Highly luminescent CdTe/CdSe colloidal heteronanocrystals with temperature-dependent emission color

P.T.K. Chin, C. de Mello Donega, S.S. van Bavel, S.C.J. Meskers, N.A.J.M. Sommerdijk, R.A.J. Jansen

Dep Scheikunde

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

Abstract

In this work we present the preparation of highly luminescent anisotropic CdTe/CdSe colloidal heteronanocrystals. The reaction conditions used (low temperature, slow precursor addition, and surfactant composition) resulted in a tunable shape from prolate to branched CdTe/CdSe nanocrystals. Upon CdSe shell growth the heteronanocrystals show a gradual evolution from type-I to type-II optical behavior. These heteronanocrystals show a remarkably high photoluminescence quantum yield (up to 82%) and negligible thermally induced quenching up to temperatures as high as 373 K.

Original language	Undefined/Unknown
Pages (from-to)	14880-14886
Number of pages	7
Journal	Journal of the American Chemical Society
Volume	129
Publication status	Published - 2007

Access to Document

2007-004
Open Access (free)
Final published version, 453 KB

Cite this

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title = "Highly luminescent CdTe/CdSe colloidal heteronanocrystals with temperature-dependent emission color",

abstract = "In this work we present the preparation of highly luminescent anisotropic CdTe/CdSe colloidal heteronanocrystals. The reaction conditions used (low temperature, slow precursor addition, and surfactant composition) resulted in a tunable shape from prolate to branched CdTe/CdSe nanocrystals. Upon CdSe shell growth the heteronanocrystals show a gradual evolution from type-I to type-II optical behavior. These heteronanocrystals show a remarkably high photoluminescence quantum yield (up to 82%) and negligible thermally induced quenching up to temperatures as high as 373 K.",

author = "P.T.K. Chin and {de Mello Donega}, C. and {van Bavel}, S.S. and S.C.J. Meskers and N.A.J.M. Sommerdijk and R.A.J. Jansen",

year = "2007",

language = "Undefined/Unknown",

volume = "129",

pages = "14880--14886",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Highly luminescent CdTe/CdSe colloidal heteronanocrystals with temperature-dependent emission color

AU - Chin, P.T.K.

AU - de Mello Donega, C.

AU - van Bavel, S.S.

AU - Meskers, S.C.J.

AU - Sommerdijk, N.A.J.M.

AU - Jansen, R.A.J.

PY - 2007

Y1 - 2007

N2 - In this work we present the preparation of highly luminescent anisotropic CdTe/CdSe colloidal heteronanocrystals. The reaction conditions used (low temperature, slow precursor addition, and surfactant composition) resulted in a tunable shape from prolate to branched CdTe/CdSe nanocrystals. Upon CdSe shell growth the heteronanocrystals show a gradual evolution from type-I to type-II optical behavior. These heteronanocrystals show a remarkably high photoluminescence quantum yield (up to 82%) and negligible thermally induced quenching up to temperatures as high as 373 K.

AB - In this work we present the preparation of highly luminescent anisotropic CdTe/CdSe colloidal heteronanocrystals. The reaction conditions used (low temperature, slow precursor addition, and surfactant composition) resulted in a tunable shape from prolate to branched CdTe/CdSe nanocrystals. Upon CdSe shell growth the heteronanocrystals show a gradual evolution from type-I to type-II optical behavior. These heteronanocrystals show a remarkably high photoluminescence quantum yield (up to 82%) and negligible thermally induced quenching up to temperatures as high as 373 K.

M3 - Article

SN - 0002-7863

VL - 129

SP - 14880

EP - 14886

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

ER -