File:The perfect gold as it is.png

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Original file (2,048 × 1,403 pixels, file size: 2.34 MB, MIME type: image/png)

Captions

Captions

Thin film deposition, vacuum evaporation, gold sphere on substrate

Summary

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Description
English: Defects may have their own beauty! This sphere, so similar to Earth, it is a drop of gold formed during the deposition of a thin film for a passive plasmon sensor based on 2D gold nanostructures. Gold is a technologically complex material. When it is deposited by vacuum evaporation methods, in addition to individual atoms and atomic clusters, large droplets of an ideal spherical shape can form on substrates. This SEM image shows the substrate, on which the thin film deposition test process was performed. A large metal particle landed on the substrate and took the shape of an ideal sphere due to the minimization of its surface energy. The diameter of the sphere is about 5 microns. The technologies developed by the FMN Laboratory team are allowing today to get rid of such defects. The deposition of defect-free metal films makes it possible to create sensors of record-high sensitivity.
Русский: Идеальное золото

И в дефектах есть своя красота! Этот шар, так похожий на нашу Землю, – капля золота, сформировавшаяcя в ходе осаждения тонкой пленки для будущего пассивного плазмонного сенсора на основе 2D золотых наноструктур. Золото – сложный с технологической точки зрения материал. При его осаждении вакуумными методами испарения, помимо отдельных атомов и атомарных кластеров при определенных условиях формируются такие крупные капли идеальной сферической формы. На снимке, полученном сканирующим электронным микроскопом, представлено микроизображение подложки, на которой отрабатывалась технология осаждения тонких пленок. Крупная частица металла приземлилась на подложку в форме идеального шара в силу минимизации своей поверхностной энергии. Диаметр шара составляет порядка 5 мкм.

Разработанные НОЦ ФМН технологии сегодня позволяют избавиться от этого дефекта. Осаждение бездефектных пленок металлов позволяет создавать сенсоры рекордно высокой чувствительности.
Source Own work
Author FMNLab
Camera location55° 45′ 04.48″ N, 37° 37′ 06.32″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

FMN Laboratory, Bauman Moscow State Technical University

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w:en:Creative Commons
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current17:17, 29 May 2020Thumbnail for version as of 17:17, 29 May 20202,048 × 1,403 (2.34 MB)FMNLab (talk | contribs)Uploaded own work with UploadWizard

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