Thermal Expansion Behavior of Hexagonal ZnS Single-Crystal Nanowires Embedded in Anodized Aluminum Oxide Template
YU Yan-Long1, ZHENG Li-Hui1, XU Xin1, SUN Hong-Yu2**
1Department of Applied Technology, Daqing Petroleum Institute, Qinhuangdao 066004 2Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084
Thermal Expansion Behavior of Hexagonal ZnS Single-Crystal Nanowires Embedded in Anodized Aluminum Oxide Template
YU Yan-Long1, ZHENG Li-Hui1, XU Xin1, SUN Hong-Yu2**
1Department of Applied Technology, Daqing Petroleum Institute, Qinhuangdao 066004 2Beijing National Center for Electron Microscopy, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084
摘要The thermal expansion behavior of semiconductor single-crystal nanowire arrays is of importance for their applications in electronic and optoelectronic nanodevices. We prepare hexagonal ZnS single-crystal nanowire arrays growing along the [110] direction via electrodeposition. The thermal expansion properties of the as-prepared ZnS nanowires have been studied by in situ x-ray diffraction method. The thermal expansion coefficient (TEC) of the ZnS nanowires decreases consistently from room temperature to 225°C where it reaches a minimum value, and then increases rapidly. The average TEC in the studied temperature range is 4.74×10−6/°C, which is smaller than that of the conventional bulk counterpart.
Abstract：The thermal expansion behavior of semiconductor single-crystal nanowire arrays is of importance for their applications in electronic and optoelectronic nanodevices. We prepare hexagonal ZnS single-crystal nanowire arrays growing along the [110] direction via electrodeposition. The thermal expansion properties of the as-prepared ZnS nanowires have been studied by in situ x-ray diffraction method. The thermal expansion coefficient (TEC) of the ZnS nanowires decreases consistently from room temperature to 225°C where it reaches a minimum value, and then increases rapidly. The average TEC in the studied temperature range is 4.74×10−6/°C, which is smaller than that of the conventional bulk counterpart.
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2010, Vol. 27 
