Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight
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| Formato: | Online |
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Universidad Nacional, Costa Rica
2019
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| Acceso en línea: | https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/11103 |
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UNICIENCIA11103 |
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UNICIENCIA111032019-08-27T15:46:15Z Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight Medidas topográficas en superficies atómicamente planas en condiciones ambiente mediante un microscopio de efecto túnel, un enfoque didáctico Delgado-Jiménez, Lilliana Chacón-Vargas, Sofía Sabater-Piqueres, Carlos Sáenz-Arce, Giovanni scanning tunneling microscope HOPG surfaces Au (111) calibration microscopía de efecto túnel calibración superficies Au (111) HOPG One of the great advances in nanotechnology has been the development of the scanning tunneling microscope, a tool that permits the manipulation of atoms and molecules, the study of electron transport in a single atom, and the generation of images with atomic precision in electrically conductive surfaces. In this paper we describe the tunneling microscope, its operation, a calibration methodology, and how to make topographic measurements on flat surfaces with atomic resolution at room conditions. This is done from a didactic point of view, intended to assist new users or researchers unfamiliar with the technique. Depending on the type of measurement and calibration, we used two conductive samples, gold (111) oriented along the crystallographic direction, and highly oriented pyrolytic graphite (HOPG). Uno de los grandes avances en la nanotecnología fue el desarrollo del microscopio de efecto túnel, herramienta que ha permitido poder manipular átomos, moléculas, estudiar el transporte electrónico en un solo átomo e incluso la obtención de imágenes con precisión atómica en superficies eléctricamente conductoras. En este artículo describimos el microscopio de efecto túnel, su funcionamiento, una metodología de calibración y cómo medir topografía de superficies planas con una resolución atómica en condiciones ambiente. Todo ello desde un punto de vista didáctico para los nuevos usuarios o investigadores no familiarizados con la técnica. Dependiendo del tipo de medida y calibración, se usaron dos tipos de muestras conductoras, el oro orientado en la dirección cristalográfica (111) y el grafito pirolítico altamente orientado (HOPG). Universidad Nacional, Costa Rica 2019-01-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Papers evaluated by academic peers Artículos evaluados por pares académicos application/pdf text/html application/epub+zip https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/11103 10.15359/ru.33-1.3 Uniciencia; Vol. 33 No. 1 (2019): Uniciencia. January-june, 2019; 30-42 Uniciencia; Vol. 33 Núm. 1 (2019): Uniciencia. Enero - Junio, 2019; 30-42 Uniciencia; v. 33 n. 1 (2019): Uniciencia. January-june, 2019; 30-42 2215-3470 spa https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/11103/14003 https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/11103/14004 https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/11103/14005 |
| institution |
Universidad Nacional de Costa Rica |
| collection |
Uniciencia |
| language |
spa |
| format |
Online |
| author |
Delgado-Jiménez, Lilliana Chacón-Vargas, Sofía Sabater-Piqueres, Carlos Sáenz-Arce, Giovanni |
| spellingShingle |
Delgado-Jiménez, Lilliana Chacón-Vargas, Sofía Sabater-Piqueres, Carlos Sáenz-Arce, Giovanni Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight |
| author_facet |
Delgado-Jiménez, Lilliana Chacón-Vargas, Sofía Sabater-Piqueres, Carlos Sáenz-Arce, Giovanni |
| author_sort |
Delgado-Jiménez, Lilliana |
| title |
Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight |
| title_short |
Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight |
| title_full |
Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight |
| title_fullStr |
Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight |
| title_full_unstemmed |
Topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight |
| title_sort |
topographical measurements on atomically flat surfaces at room conditions through scanning tunneling microscope, a didactic insight |
| title_alt |
Medidas topográficas en superficies atómicamente planas en condiciones ambiente mediante un microscopio de efecto túnel, un enfoque didáctico |
| publisher |
Universidad Nacional, Costa Rica |
| publishDate |
2019 |
| url |
https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/11103 |
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