A scanning tunneling microscope allows imaging of particles is Submicroscopic .
What is Scanning tunneling microscope ?
A scanning tunneling microscope (STM) is a type of microscope used to image surfaces at the atomic level. The 1981 development earned inventors Gerd Binnig and Heinrich Rohrer his 1986 Nobel Prize in Physics, then at IBM Zurich. STM scans the surface using a very sharp conductive tip that can distinguish features smaller than 0.1 nm with a depth resolution of 0.01 nm (10 PM). This means that individual atoms can be routinely imaged and manipulated. Most microscopes are built for use in ultra-high vacuum at temperatures close to zero Kelvin, but there are variations for studies in air, water, and other environments, as well as for studies at temperatures above 1000°C. there is. Functional principle of the scanning tunneling microscope.
STM is based on the concept of quantum tunneling. When the tip is brought very close to the surface to be probed, the bias voltage applied between the two electrodes allows the electrons to pass through the vacuum that separates them. The resulting tunneling current is a function of tip position, applied voltage, and sample local density of states (LDOS). Information is gathered by monitoring the current as the chip scans across the surface and is usually displayed in image form.
To know more about Scanning tunneling microscope , click the given link ;
https://brainly.com/question/17091478
#SPJ1
