Article ID Journal Published Year Pages File Type
5364488 Applied Surface Science 2009 6 Pages PDF
Abstract

The image contrast enhancement in scanning electron microscopy of single-walled carbon nanotubes (SWNTs) on SiO2 surfaces was experimentally investigated using a field-emission scanning electron microscope (FESEM) using a wide range of primary electron (PE) voltages. SWNT images of different contrasts were obtained at different PE voltages. Image contrast enhancement of SWNTs was investigated by charging SiO2 surfaces at different PE voltages. The phenomena are ascribed to the surface potential difference and charge injection between SWNTs and SiO2 substrates induced by the electron-beam irradiation.

Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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