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

P.T.K. Chin; C. Mello Donegá, de; S.S Chevtchenko; S.C.J. Meskers; N.A.J.M. Sommerdijk; R.A.J. Janssen

doi:10.1021/ja0738071

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

P.T.K. Chin
, C. Mello Donegá, de
, S.S Chevtchenko
, S.C.J. Meskers
, N.A.J.M. Sommerdijk
, R.A.J. Janssen

Materials to Optoelectronic Devices

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

182 Citations (SciVal)

Abstract

In this work we present the preparation of highly luminescent anisotrophic 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 remarkable high photoluminescence quantum yield (up to 82%) and negligible thermally induced quenching up to temperatures as high as 373 K.

Original language	English
Pages (from-to)	14880-14886
Journal	Journal of the American Chemical Society
Volume	129
Issue number	48
DOIs	https://doi.org/10.1021/ja0738071
Publication status	Published - 2007

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10.1021/ja0738071

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Friedrich, H. (Manager), Bransen, M. (Education/research officer), Schmit, P. (Education/research officer), Schreur - Piet, I. (Other) & Spoelstra, A. (Education/research officer)
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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 anisotrophic 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 remarkable 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 \{Mello Doneg{\'a}, de\}, C. and S.S Chevtchenko and S.C.J. Meskers and N.A.J.M. Sommerdijk and R.A.J. Janssen",

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doi = "10.1021/ja0738071",

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

AU - Chin, P.T.K.

AU - Mello Donegá, de, C.

AU - Chevtchenko, S.S

AU - Meskers, S.C.J.

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

AU - Janssen, R.A.J.

PY - 2007

Y1 - 2007

N2 - In this work we present the preparation of highly luminescent anisotrophic 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 remarkable 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 anisotrophic 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 remarkable high photoluminescence quantum yield (up to 82%) and negligible thermally induced quenching up to temperatures as high as 373 K.

U2 - 10.1021/ja0738071

DO - 10.1021/ja0738071

M3 - Article

C2 - 17994737

SN - 0002-7863

VL - 129

SP - 14880

EP - 14886

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 48

ER -

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

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