The crossover between tunnel and hopping conductivity in granulated films of noble metals

被引：12

作者：

Kavokin, Alexey ^{[1
,2
,3
,4
]}

Kutrovskaya, Stella ^{[2
,5
]}

Kucherik, Alexey ^{[5
]}

Osipov, Anton ^{[5
]}

Vartanyan, Tigran ^{[6
]}

Arakelyan, Sergey ^{[5
]}

机构：

[1] CNR, SPIN, Viale Politecn 1, I-00133 Rome, Italy

[2] Russian Quantum Ctr, Skolkovo 143025, Moscow Region, Russia

[3] St Petersburg State Univ, Spin Opt Lab, 1 Ulianovskaya, St Petersburg 198504, Russia

[4] Univ Southampton, Phys & Astron, Southampton SO17 1BJ, Hants, England

[5] AG & NG Stoletov Vladimir State Univ VISU, 87 Gorki St, Vladimir 600000, Russia

[6] ITMO Univ, 49 Kronverksky Pr, St Petersburg 197101, Russia

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2017年 / 111卷

关键词：

Metallic nanoparticles; Electronic properties; Thermal activation conductivity;

D O I：

10.1016/j.spmi.2017.06.050

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The conductivity of thin films composed by clusters of gold and silver nanoparticles has been studies in a wide range of temperatures. The switch from a temperature independence to an exponential thermal dependence of the conductivity manifests the crossover between the tunnel and thermally activated hopping regimes of the electronic transport at the temperature of 60 degrees C. The characteristic thermal activation energy that governs hopping of electrons between nanoparticles is estimated as 1.3 eV. We have achieved a good control of the composition and thicknesses of nano-cluster films by use of the laser ablation method in colloidal solutions. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：335 / 339

页数：5

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