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本質p/n型氧化鋅及氧化鋅鎂奈米柱 = Intrinsic p/n-ty...

國立高雄大學化學工程及材料工程學系碩士班

本質p/n型氧化鋅及氧化鋅鎂奈米柱 = Intrinsic p/n-type ZnO and MgZnO Nanorods : 其合成、發光及室溫酒精感測性質; Synthesis, Luminescence, and Room-temperature Ethanol Sensing

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Intrinsic p/n-type ZnO and MgZnO Nanorods
副題名:	其合成、發光及室溫酒精感測性質
作者:	林育賢,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	民103[2014]
面頁冊數:	106葉圖，表格 : 30公分;
標題:	氧化鋅
標題:	ethanol
電子資源:	http://hdl.handle.net/11296/ndltd/89930622465172456036
附註:	106年10月31日公開
附註:	參考書目：葉97-106
其他題名:	其合成發光及室溫酒精感測性質
摘要註:	本研究以化學浴沉積法合成氧化鋅奈米柱陣列，並結合浸鍍法沉積Mg原料於奈米柱上，在固態擴散後可使Mg原子摻入合成氧化鋅鎂奈米柱陣列，而擴散溫度、時間及奈米柱直徑對Mg的擴散比例皆有顯著的影響，在此使用掃描式電子顯微鏡和穿透式電子顯微鏡進行材料表面形貌及微結構分析，配合X光能量散佈光譜儀及X-ray繞射分析儀，可發現所合成氧化鋅鎂材料屬單晶奈米柱結構，其平均Mg/(Mg+Zn)濃度可達15 %，由陰極發光光譜分析也可觀察到能隙發光波長明顯由376 nm藍移至357 nm。此外，本研究亦使用化學氣相沉積法，以鋅粉作為原料，利用控制不同氧氛圍條件，以低成本的一階段製程合成本質型p及n型氧化鋅奈米柱。接著，並藉著將p及n型氧化鋅奈米柱施以鎂離子溶液浸鍍及固態擴散的方式製備出氧化鋅鎂奈米柱，所合成之奈米柱皆能保有摻混前的p及n型態。藉由材料表面及微結構分析，可知所合成的材料為單晶的氧化鋅鎂奈米結構，平均之Mg/(Mg+Zn)濃度約12.8 %。奈米柱之能隙發光隨著Mg的摻雜可有效藍移。在本研究中，我們並以化學分析電子光譜儀分析p及n型奈米柱中的缺陷型態，以探討呈現p型的原因。此外，所製備之氧化鋅及氧化鋅鎂奈米柱元件皆顯示良好的室溫酒精感測性質，並隨著p及n型的不同，分別呈現電流增加與減少的響應。本研究所合成之材料顯示其應用於紫外光發光與室溫氣體感測多功能元件之潛力。 In the first part, MgZnO nanorods (NRs) were fabricated by solid-state diffusion of Mg2+ into ZnO NRs that were synthesized by chemical bath deposition. The concentrations of Mg2+ diffused into ZnO were varied by controlling the diffusion temperature, time, and diameter of NRs. Scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), and high-resolution transmission electron microscopy (HRTEM) show that the MgZnO NRs are single-crystalline structures, and the maxinum concentration of Mg/(Mg+Zn) is about 15 %. Cathodoluminescence spectra show that the near-band-edge emissions of MgZnO NRs were blue-shifted obviously from 376 to 357 nmIn the second part, intrinsic p- and n-type ZnO NRs were synthesized in different oxygen atmospheres by thermal chemical vapor deposition using zinc powders as source. Besides, part p- and n-type ZnO NRs were alloyed with Mg by dipping in Mg2+ solutions and subsequent solid-state diffusion at high temperature. The as-prepared MgZnO NRs maintain their original p- and n-type characteristics after being alloyed. TEM and EDS show that the MgZnO NRs are single-crystalline structures with average Mg/(Mg+Zn) concentration of about 12.8 %. Cathodoluminescence spectra show the near-band-edge emissions of the NRs were effectively blue-shifted with the incorporation of Mg. The defects in the p- and n-type NRs were investigated to explain the origin of p-type by X-ray photoelectron spectroscopy. Besides, devices of the p- and n-type NRs appear good ethanol sensing properties with current obviously decreasing or increasing, respectively, once exposing to ethanol gas at room-temperature. This work proposes an effective route to synthesize p- and n-type MgZnO nanostructures which have great potential in fabricating multifunctional nanodevices for UV luminescence and room-temperature gas sensing applications.

本質p/n型氧化鋅及氧化鋅鎂奈米柱 = Intrinsic p/n-type ZnO and MgZnO Nanorods : 其合成、發光及室溫酒精感測性質; Synthesis, Luminescence, and Room-temperature Ethanol Sensing
林, 育賢

本質p/n型氧化鋅及氧化鋅鎂奈米柱 = Intrinsic p/n-type ZnO and MgZnO Nanorods : 其合成、發光及室溫酒精感測性質 / 林育賢撰 - [高雄市] : 撰者, 民103[2014]. - 106葉 ; 圖，表格 ; 30公分.
106年10月31日公開參考書目：葉97-106.
氧化鋅ethanol

本質p/n型氧化鋅及氧化鋅鎂奈米柱 = Intrinsic p/n-type ZnO and MgZnO Nanorods : 其合成、發光及室溫酒精感測性質; Synthesis, Luminescence, and Room-temperature Ethanol Sensing
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