利用熱蒸法成長硫化鋅－氧化鋅核殼奈米線並對其結構與光學性質加以分析

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Title:	利用熱蒸法成長硫化鋅－氧化鋅核殼奈米線並對其結構與光學性質加以分析 The Structure and Optical Properties of Thermal Evaporated ZnS/ZnO Core-Shell Nanowires
Authors:	鄭尹瑋黃盟文張立偉林瑀宏施漢章
Contributors:	華岡工程學報
Keywords:	硫化鋅氧化鋅奈米線陰極發光光譜 ZnS ZnO nanowires cathodoluminescence
Date:	2010-06
Issue Date:	2014-10-31 14:48:51 (UTC+8)
Abstract:	本論文成功生長出高密度的硫化鋅－氧化鋅核殼奈米線，在溫度為1000 °C 且持溫一小時成長於鍍上金的矽基板上。經由掃描式電子顯微鏡顯示出硫化鋅-氧化鋅核殼奈米線寬度約為20到50nm，而長度約10到20μm。利用X光繞射儀顯示出硫化鋅－氧化鋅核殼奈米線的繞射平面為（002）及（110）。經由X射線光電子光譜可得其中鋅主要為2p3軌域，硫主要為2p3 軌域，而氧主要則為1s軌域。使用高解析的穿透式電子顯微鏡可以發現硫化鋅和氧化鋅都屬於六方閃鋅礦結構且成長方向皆為（002）。由陰極發光光譜顯示硫化鋅－氧化鋅核殼奈米線發出波長為567nm 的光，這是由於硫化鋅－氧化鋅核殼奈米線中的氧缺陷導致波長產生紅移的現象。 In this study, the high-density ZnS-ZnO core-shell nanowires were successfully synthesized on the Au coated Si substrates using thermal evaporation at 1000 °C for 1 hr. Results indicated that the ZnS-ZnO core-shell nanowires had diameters of 20 to 50 nm and lengths of 10 to 20 μm by field emission scanning electron microscope (FESEM). The major diffraction planes of (002) and (110) for the ZnS-ZnO core-shell nanowires were examined by x-ray diffraction (XRD). The results of x-ray photoelectron spectroscopy (XPS) indicated that the major orbitals of Zn, S and O were 2p^3, 2p^3 and 1s, respectively. Both of ZnS and ZnO are of single crystalline hexagonal wurtzite structure with the same growth direction of [002] by high-resolution transmission electron microscope (HRTEM). The wavelength of emission is 567 nm because the oxygen deficiencies are in the ZnS-ZnO core-shell nanowires by cathodoluminescence (CL).
Relation:	華岡工程學報； 26 期 (2010 / 06 / 01) ， P95 - 100
Appears in Collections:	[College of Engineering] Chinese Culture University Hwa Kang Journal of Engineering

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