【摘 要】
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Centimetre-long ZnO fibres axe synthesized by vapour transportation via thermal evaporation of ZnO powders.The growth process is carried out in a graphite cruci
【机 构】
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Institute of electronic information, Hangzhou Dianzi University, Hangzhou 310018“,”State Key Laborat
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Centimetre-long ZnO fibres axe synthesized by vapour transportation via thermal evaporation of ZnO powders.The growth process is carried out in a graphite crucible, in which ZnO powder is loaded as the source material,and a silicon wafer is positioned on the top of the crucible as the growth substrate. During the growth process,the source temperature is kept at 800~ C, and the substrate temperature is kept at 600℃. Typical growth time to obtain centimetre-long ZnO fibres is 5-10 hours. Scanning electron microscopy (SEM), x-ray diffraction (XRD),transmission electron microscopy (TEM), and selected area electron diffraction (SAED) measurement results show that ZnO fibres are single crystalline with high crystalline quality and very low defects concentration.
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