VIBRATIONAL NOISE SPECTROSCOPY APPARATUS FOR MEASURING AND IMAGING MOLECULAR VIBRATION MODE IN NANOSCALE SPATIAL RESOLUTION AND METHOD THEREOF

摘要

A vibration noise spectroscopy apparatus and method for measuring and imaging a molecular vibration mode at nano-resolution. The vibration noise spectroscopy apparatus is composed of conductive probes and molecules deposited on a conductive Atomic Force Microscopy. Function generator control unit that controls the function generator so that a voltage is applied between the conductive substrates on which the molecular sample is mounted, measures the current flowing through the molecular sample to the probe, and generates noise power spectral density based on the measured current signal. , PSD) to measure the noise power spectral density according to the changed voltage through the measuring unit and function generator to generate a map of the noise power spectral density, and analyze the map of the spectral density to determine the vibration mode of the molecular sample. Image analysis unit and vibration mode distribution in nano-scale resolution Includes an image conversion unit to generate the map.