Au tips with a smooth surface and a radius ranging from 10—30 nm were fabricated by electrochemical etching of Au wires at a constant potential in a mixture of fuming HCl and absolute ethanol with a volume ratio of 1∶1.
采用针尖增强拉曼光谱技术(TERS)研究了刻蚀电位对Au针尖刻蚀效果的影响,初步探讨了刻蚀过程的机理。