標題: Interrelation of transport and optical properties in gold nanoclusters
作者: Shu, G. W.
Chen, T. Y.
Shen, J. L.
Lin, C. A. J.
Chang, W. H.
Chan, W. H.
Wang, H. H.
Yeh, H. I.
Chou, W. C.
電子物理學系
Department of Electrophysics
關鍵字: charge exchange;electrical conductivity;fluctuations;gold;metal clusters;nanoparticles;photoluminescence
公開日期: 20-九月-2010
摘要: 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. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3491288]
URI: http://dx.doi.org/10.1063/1.3491288
http://hdl.handle.net/11536/150042
ISSN: 0003-6951
DOI: 10.1063/1.3491288
期刊: APPLIED PHYSICS LETTERS
Volume: 97
顯示於類別:期刊論文