期刊
NANO LETTERS
卷 13, 期 1, 页码 85-90出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl303501t
关键词
Pseudobinary system; solid-solution nanowires; synthesis; lattice matching; structure homology
类别
资金
- World Premier International Center for Materials Nanoarchitectonics (MANA) tenable at the National Institute for Materials Science (NIMS), Tsukuba, Japan
- Fundamental Research Fund for the Central Universities of China [DUT11NY07]
- Knowledge Innovation Program of Institute of Metal Research [Y2NCA111A1]
- National Natural Science Foundation of China [11134005]
Pseudobinary solid-solution semiconductor nanowires made of (GaP)(1-x)(ZnS)(x), (ZnS)(1-x)(GaP)(x) and (GaN)(1-x)(ZnO)(x) were synthesized based on an elaborative compositional, structural, and synthetic designs. Using analytical high-resolution transmission electron microscopy (HRTEM) and energy dispersive X-ray spectroscopy (EDS), we confirmed that the structure uniformity and a lattice match between the two constituting binary components play the key roles in the formation of quaternary solid-solution nanostructures. Electrical transport measurements on individual GaP and (GaP)(1-x)(ZnS)(x) nanowires indicated that a slight invasion of ZnS in the GaP host could lead to the abrupt resistance increase, resulting in the semiconductor-to-insulator transition. The method proposed here may be extended to the rational synthesis of many other multicomponent nanosystems with tunable and intriguing optoelectronic properties for specific applications.
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