Interrelation of transport and optical properties in gold nanoclusters

G. W. Shu; T. Y. Chen; J. L. Shen; C. A.J. Lin; W. H. Chang; W. H. Chan; H. H. Wang; H. I. Yeh; Wu-Ching Chou

doi:10.1063/1.3491288

Interrelation of transport and optical properties in gold nanoclusters

G. W. Shu, T. Y. Chen, J. L. Shen, C. A.J. Lin, W. H. Chang, W. H. Chan, H. H. Wang, H. I. Yeh, Wu-Ching Chou

Department of Electrophysics

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

1 Scopus citations

Abstract

Temperature dependence of the electrical conductivity and photoluminescence (PL) in Au nanoclusters (NCs) is investigated. The correlation of the conductivity and PL in Au NCs at different temperatures is evident: (i) for T<50 K, both the conductivity and PL intensity decrease with temperature, which suggests thermal structural fluctuations; (ii) for 50 K<T<90 K, conductivity and PL are explained by variable range hopping; (iii) for 90 K<T<170 K, simple thermal activated hopping dominates in conductivity, with a rate-equation model proposed to analyze the carrier transfer in PL.

Original language	English
Article number	123108
Journal	Applied Physics Letters
Volume	97
Issue number	12
DOIs	https://doi.org/10.1063/1.3491288
State	Published - 20 Sep 2010

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title = "Interrelation of transport and optical properties in gold nanoclusters",

abstract = "Temperature dependence of the electrical conductivity and photoluminescence (PL) in Au nanoclusters (NCs) is investigated. The correlation of the conductivity and PL in Au NCs at different temperatures is evident: (i) for T<50 K, both the conductivity and PL intensity decrease with temperature, which suggests thermal structural fluctuations; (ii) for 50 K<T<90 K, conductivity and PL are explained by variable range hopping; (iii) for 90 K<T<170 K, simple thermal activated hopping dominates in conductivity, with a rate-equation model proposed to analyze the carrier transfer in PL.",

author = "Shu, {G. W.} and Chen, {T. Y.} and Shen, {J. L.} and Lin, {C. A.J.} and Chang, {W. H.} and Chan, {W. H.} and Wang, {H. H.} and Yeh, {H. I.} and Wu-Ching Chou",

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T1 - Interrelation of transport and optical properties in gold nanoclusters

AU - Shu, G. W.

AU - Chen, T. Y.

AU - Shen, J. L.

AU - Lin, C. A.J.

AU - Chang, W. H.

AU - Chan, W. H.

AU - Wang, H. H.

AU - Yeh, H. I.

AU - Chou, Wu-Ching

PY - 2010/9/20

Y1 - 2010/9/20

N2 - Temperature dependence of the electrical conductivity and photoluminescence (PL) in Au nanoclusters (NCs) is investigated. The correlation of the conductivity and PL in Au NCs at different temperatures is evident: (i) for T<50 K, both the conductivity and PL intensity decrease with temperature, which suggests thermal structural fluctuations; (ii) for 50 K<T<90 K, conductivity and PL are explained by variable range hopping; (iii) for 90 K<T<170 K, simple thermal activated hopping dominates in conductivity, with a rate-equation model proposed to analyze the carrier transfer in PL.

AB - Temperature dependence of the electrical conductivity and photoluminescence (PL) in Au nanoclusters (NCs) is investigated. The correlation of the conductivity and PL in Au NCs at different temperatures is evident: (i) for T<50 K, both the conductivity and PL intensity decrease with temperature, which suggests thermal structural fluctuations; (ii) for 50 K<T<90 K, conductivity and PL are explained by variable range hopping; (iii) for 90 K<T<170 K, simple thermal activated hopping dominates in conductivity, with a rate-equation model proposed to analyze the carrier transfer in PL.

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JO - Applied Physics Letters

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