硕士生导师
教师拼音名称:zhangmeng
出生日期:1984-03-15
入职时间:2014-09-10
所在单位:无机非金属材料教研室
学历:博士研究生
性别:男
联系方式:13792436574
学位:工学博士
学科:材料学
最后更新时间:..
关键字:SiC nanowires; purification; field emission (FE) properties
摘要:In this paper, homemade SiC nanowires prepared via chemical vapor reaction was purified by calcination in combination with subsequent HF etching processing. The products were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM) and selected area electron diffraction (SAED), and then the field emission (FE) properties of the unpurified and purified SiC nanowires were measured. Results suggested that the SiC nanowires presented well-distributed and their curvature were reduced after being purified, in addition, SiC nanowires separated from each other instead of felting together, FE properties were improved, with turn-on and threshold fields decreased by 1.1V/mu m and 0.6V/mu m, respectively.
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