Controllability of the Coulomb charging energy in close-packed nanoparticle arrays.
We studied the electronic transport properties of metal nanoparticle arrays, particularly focused on the Coulomb charging energy. By comparison, we confirmed that it is more reasonable to estimate the Coulomb charging energy using the activation energy from the temperature-dependent zero-voltage conductance. Based on this, we systematically and comprehensively investigated the parameters that could be used to tune the Coulomb charging energy in nanoparticle arrays. We found that four parameters, including the particle core size, the inter-particle distance, the nearest neighboring number, and the dielectric constant of ligand molecules, could significantly tune the Coulomb charging energy.
Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China. Jianhui.Liao@pku.edu.cn.
Chao
C
Duan
Ying
Y
Wang
Jinling
J
Sun
Changrong
C
Guan
Sergio
S
Grunder
Marcel
M
Mayor
Lianmao
L
Peng
Jianhui
J
Liao