Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 9, Issue 3, Pages G69-G72Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.2159295
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Metal-catalyzed nanowires have previously been proposed as the active elements of field-effect devices, such as metal oxide field effect transistors and sensors. For these applications, the nanowire surface properties must be understood and controlled. Initial measurements of nanowire surface-charge density are presented here. The surface-charge density was obtained by measuring nanowires of different diameters grown between electrodes. The surface-charge density of a nanowire covered with native oxide is about 2 x 10(12) cm(-2); the density appears to decrease by a factor of two to four when the native oxide is replaced by a high-quality thermally grown oxide, with further improvement possible. (c) 2006 The Electrochemical Society.
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