ZHANG Jing-Xiang1,2, LI Hui1, ZHANG Xue-Qing4, LIEW Kim-Meow3
1The Key Lab of Liquid Structure and Heredity of Materials (Ministry of Education), Shandong University, Ji'nan 2500612School of Information Science and Engineering, University of Jinan, Ji'nan 2500223Department of Building and Construction, City University of Hong Kong, Kowloon, Hong Kong4Department of Physics, Ocean University of China, Qingdao 266032
Electric Conductivity of Phosphorus Nanowires
ZHANG Jing-Xiang1,2, LI Hui1, ZHANG Xue-Qing4, LIEW Kim-Meow3
1The Key Lab of Liquid Structure and Heredity of Materials (Ministry of Education), Shandong University, Ji'nan 2500612School of Information Science and Engineering, University of Jinan, Ji'nan 2500223Department of Building and Construction, City University of Hong Kong, Kowloon, Hong Kong4Department of Physics, Ocean University of China, Qingdao 266032
摘要We present the structures and electrical transport properties of nanowires made from different strands of phosphorus chains encapsulated in carbon nanotubes. Optimized by density function theory, our results indicate that the conductance spectra reveal an oscillation dependence on the size of wires. It can be seen from the density of states and current-voltage curves that the structure of nanowires affects their properties greatly. Among them, the DNA-like double-helical phosphorus nanowire exhibits the distinct characteristic of an approximately linear I-V relationship and has a higher conductance than others. The transport properties of phosphorus nanowires are highly correlated with their microstructures.
Abstract：We present the structures and electrical transport properties of nanowires made from different strands of phosphorus chains encapsulated in carbon nanotubes. Optimized by density function theory, our results indicate that the conductance spectra reveal an oscillation dependence on the size of wires. It can be seen from the density of states and current-voltage curves that the structure of nanowires affects their properties greatly. Among them, the DNA-like double-helical phosphorus nanowire exhibits the distinct characteristic of an approximately linear I-V relationship and has a higher conductance than others. The transport properties of phosphorus nanowires are highly correlated with their microstructures.
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2009, Vol. 26 
