Researchers at Novosibirsk State University (NSU) have created crystalline films based on metals. They can be used in photosensitive devices. These improved materials will be used in photocathodes used in microscopes and night vision systems.
We not only obtained crystalline ordered films, but also for the first time experimentally measured their electronic structure using angle-resolved photoelectron spectroscopy.
According to scientists, the results of their work will improve the characteristics of photoelectronic converters based on photocathodes. The films consist of sodium, potassium and antimony. Two of these metals are prone to oxidation upon contact with air. The researchers were able to control the process of building up crystalline structures, avoiding an excess of one of the chemical elements.
The electronic structure of the created single-crystal films is studied using angle-resolved photoelectron spectroscopy. If our project demonstrates high potential, we will continue research at the SKIF synchrotron
SKIF is a "megascience" facility (designed for high-tech experiments and research) being built in the Novosibirsk science city of Koltsovo. It will be a complex of 34 buildings and structures, allowing research using bright and intense beams of X-ray radiation in various fields of science.
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