Excellent piezoelectric and electrical properties of lithium-doped ZnO nanowires for nanogenerator applications

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/100072

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题名:	Excellent piezoelectric and electrical properties of lithium-doped ZnO nanowires for nanogenerator applications
作者:	Chang, Yu-Tsui;Chen, Jui-Yuan;Yang, Tzu-Ping;Huang, Chun-Wei;Chiu, Chung-Hua;Yeh, Ping-Hung;Wu, Wen-Wei
贡献者:	淡江大學物理學系
关键词:	ZnO;Lithium-doped;Piezoelectric property;Hydrothermal method;Magnetization
日期:	2014-06-23
上传时间:	2015-01-28 11:04:59 (UTC+8)
出版者:	Netherlands: Elsevier BV
摘要:	The well-aligned Li-doped zinc oxide nanowires (ZnO NWs) were successfully grown on Si substrates with seed layer by the hydrothermal method. The presence of Li in ZnO NWs is confirmed through EELS spectrum analysis. The acceptor energy level of the Li dopant is estimated to be 93.6 meV from the temperature-dependent PL spectra. From the SQUID measurements, the coercivity and saturation magnetization of the Li-doped ZnO NWs at room temperature are found to be 166 Oe and 9.64 memu/g, respectively. Additionally, the Li-doped ZnO NWFET confirms that the NWs were p-type with a high carrier mobility of 14.59 cm2/V s and an effective hole carrier concentration of 1.13×1017 cm−3. The piezoelectric response of the Li-doped ZnO NWs produces much higher piezoelectric output current, voltage, and power than pure ZnO NWs. These results indicated that p-type ZnO NWs are a promising candidate for nanogenerator devices.
關聯:	Nano Energy 8, pp.291-296
DOI:	10.1016/j.nanoen.2014.06.014
显示于类别:	[物理學系暨研究所] 期刊論文

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