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基于Miller-Abrahams理论,发展了一种重正化群方法,研究了一维纳米结构体系的hopping电导.研究表明在纳米结构体系中晶粒种类、晶粒尺寸对hopping电导有显著的调制作用,界面结构及晶格畸变等对hopping电导也有不同程度的影响.In terms of Miller-Abrahams' theory, a real-space renormalization group approach is developed to calculate the hopping conductivity of one-dimensional nanostructured chain.It is found that the kinds and the sizes,as well as the interface structures and lattice distortion,of nano-grains have a notable effect on the hopping conductivity of nanostructured systems.
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