摘要
根据电化学腐蚀法的基本原理,研究了简单易操作的钨探针的制备方法,并设计了相应的装置。结果表明,在腐蚀溶液Na OH浓度2 mol/L,电压2 V的条件下,得到了尖端曲率半径约40 nm的钨探针,满足扫描隧道显微镜(STM)使用的需求。
Based on the basic principle of electrochemical corrosion , a liquid film preparation method which is simple and easy to be operated was studied to fabricate tungsten probe for STM .Results show that under the conditions that corrosion solution NaOH concentration is 2 mol/L and voltage is 2 V,the tungsten probes ’ tip radiuses of curvature are 40 nm,which meet the requirement of STM .
出处
《应用化工》
CAS
CSCD
北大核心
2015年第4期761-763,共3页
Applied Chemical Industry
基金
国家自然科学基金资助项目(11372133)
国家自然科学基金资助项目(51405235)
江苏高校优势学科建设工程资助项目
关键词
扫描隧道显微镜
探针
电化学腐蚀
曲率半径
scanning tunneling microscope
probe
electrochemical corrosion
radius of curvature
