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利用常压化学气相淀积(APCVD)设备,在单晶Si片上淀积出了一层SiC薄膜.这种SiC薄膜可以用作场致发射的阴极,该文报道了其场致发射的I~V特性测试结果.结果表明,该薄膜的场致发射具有Fowler-Nordheim的指数形式,而其发射场强的阈值约为1V/μm.在测试出的I~V特性曲线上,发现了共振隧穿特征.该特征值得进一步研究
Using atmospheric pressure chemical vapor deposition (APCVD) equipment, a layer of Si film is deposited on the SiC film. This SiC thin film can be used as a cathode for field emission. This article reports the results of its field emission I ~ V characteristic test. The results show that the field emission of the film has an exponential form of Fowler-Nordheim, and the threshold of its emission field intensity is about 1V / μm. Resonant tunneling characteristics were found on the tested I ~ V characteristic curves. This feature deserves further study