Scanning tunneling microscope induced luminescence of lithographically prepared Au dots

A. Olkhovets; S. Evoy; Harold G. Craighead

doi:10.1016/S0039-6028(00)00363-0

Scanning tunneling microscope induced luminescence of lithographically prepared Au dots

A. Olkhovets, S. Evoy, Harold G. Craighead

Research output: Contribution to journal › Article

7 Scopus citations

Abstract

We observe high contrast scanning tunneling microscope (STM)-induced luminescence maps from isolated lithographically prepared gold dots on silicon using gold and tungsten STM tips. We observe geometry-related light emission with photon intensity stronger at protrusions than in the valleys. The light intensity dependence on tunnel voltage bias agrees with theoretical predictions. A noticeable variation of onset bias with the tip material is observed.

Original language	English (US)
Journal	Surface Science
Volume	453
Issue number	1-3
DOIs	https://doi.org/10.1016/S0039-6028(00)00363-0
State	Published - May 10 2000

Keywords

Gold
Luminescence
Scanning tunneling microscopy
Surface waves
Tungsten

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Condensed Matter Physics
Surfaces and Interfaces

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10.1016/S0039-6028(00)00363-0

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title = "Scanning tunneling microscope induced luminescence of lithographically prepared Au dots",

abstract = "We observe high contrast scanning tunneling microscope (STM)-induced luminescence maps from isolated lithographically prepared gold dots on silicon using gold and tungsten STM tips. We observe geometry-related light emission with photon intensity stronger at protrusions than in the valleys. The light intensity dependence on tunnel voltage bias agrees with theoretical predictions. A noticeable variation of onset bias with the tip material is observed.",

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AU - Olkhovets, A.

AU - Evoy, S.

AU - Craighead, Harold G.

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N2 - We observe high contrast scanning tunneling microscope (STM)-induced luminescence maps from isolated lithographically prepared gold dots on silicon using gold and tungsten STM tips. We observe geometry-related light emission with photon intensity stronger at protrusions than in the valleys. The light intensity dependence on tunnel voltage bias agrees with theoretical predictions. A noticeable variation of onset bias with the tip material is observed.

AB - We observe high contrast scanning tunneling microscope (STM)-induced luminescence maps from isolated lithographically prepared gold dots on silicon using gold and tungsten STM tips. We observe geometry-related light emission with photon intensity stronger at protrusions than in the valleys. The light intensity dependence on tunnel voltage bias agrees with theoretical predictions. A noticeable variation of onset bias with the tip material is observed.

KW - Gold

KW - Luminescence

KW - Scanning tunneling microscopy

KW - Surface waves

KW - Tungsten

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