✦ LIBER ✦

Irradiation-induced nanometer-scale surface etching of a CdSe film with a scanning tunneling microscope

✍ Scribed by Chong-yang Liu; Allen J. Bard

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 455 KB
Volume: 174
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)80100-r

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✦ Synopsis

Nanometer size features have been etched in a circa 200 8, thick CdSe fti held in a scanning tunneling microscope (STM) by irradiation with a He-Ne laser (8 mW) with the STM tip biased to a positive potential. Etching does not occur in the absence of irradiation or with the STM tip biased negative. A tentative mechanism based on electrical field assisted photodecomposition is proposed.

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