1
25
2
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https://riquim.fq.edu.uy/files/original/71413e972da7b98e5bf3bbf116fd8f38.pdf
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Omeka Image File
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8
Channels
3
Height
155
Width
116
Dublin Core
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Title
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Bibliografía Nacional Química
Description
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Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
Document
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If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
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Title
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<strong>Theoretical characterization of germanene doped with main group elements</strong>
Subject
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CALCULOS FUNCIONALES DE DENSIDAD
GERMANIO
BIBLIOGRAFIA NACIONAL QUIMICA
2024
Abstract
A summary of the resource.
Herein, using density functional calculations, we studied the substitutional doping in germanene with B, C, N, O, Al, Si, P, S, Ga, As, and Se. Nitrogen is the element that can be more easily incorporated into the germanene lattice, followed by silicon, carbon, and boron. Almost all dopants were efficient in opening a band-gap. Yet, caution should be taken because this opening strongly depends on the dopant concentration. Carbon and sulfur were the most effective elements for band-gap opening. C-doping generates the lowest effective masses (me*/m0=mh*/ m0=0.09). The equal me and mh values indicate an intrinsic semiconductor behavior, a characteristic shared by the chalcogenides- doped systems. Additionally, we performed a detailed analysis of the preferred disposition of dopants in the germanene lattice. In contrast with the results obtained for graphene, when multiple atoms are introduced in the germanene framework, they do not prefer to be agglomerated, adopting a random disposition, except in the case of sulfur and nitrogen, which favored specific dopant arrangement. Two sulfur dopants showed a notorious preference for replacing a Ge
Creator
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<strong>Denis, Pablo A.</strong>
<strong>Laranjeira, Jose A. S.</strong>
<strong>Sambrano, Julio R.</strong>
Source
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ChemPhysChem v. 25, n° 12, 2024. -- e202400139
Publisher
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Editorial Union of Chemical Societies
Date
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2024
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
Format
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PDF
Extent
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14 p.
Language
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Inglés
Type
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Artículo
Identifier
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10.1002/cphc.202400139
Calculos funcionales de densidad
Germanio
-
https://riquim.fq.edu.uy/files/original/3f7f8976cea3189ea4df75a0ac193379.pdf
c845c1000b6329c094a98acfecd6b7ea
https://riquim.fq.edu.uy/files/original/5a7ab7bf63c1bd78a2d6ee785cf127ce.jpg
b0ce07377495227349fac0a51ea0f03b
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Bit Depth
8
Channels
3
Height
155
Width
116
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
<strong>Structural, mechanical, and electronic properties of armchair and zigzag germanene nanotubes</strong>
Subject
The topic of the resource
NANOTECNOLOGIA
GERMANIO
NANOTUBOS
GRAFENO
PIEZOELECTRICIDAD
BIBLIOGRAFIA NACIONAL QUIMICA
2024
Abstract
A summary of the resource.
This computational study investigated germanene nanotubes (GeNTs) using density functional theory (DFT) simulations to comprehend their structural, mechanical, and electronic properties. The analysis includes armchairs and zigzag GeNTs with diameters from ~7 to ~221 Å. It explores their relative stabilities, band structures, density of states, effective mass carriers, and piezoelectric and elastic constants. As a result, it is highlighted that smaller nanotube diameters exhibit higher instability than larger ones due to increased structural strain produced by higher curvature. An intriguing behavior is observed for diameters greater than 25 Å, with negative strain energies. The quantum confinement effect significantly influences the electronic properties of GeNTs, leading to increased band gap energy for smaller nanotubes. The band gap energy of armchair nanotubes has a decreasing behavior as the diameter increases. In contrast, for zigzag nanotubes, the band gap energy increases to ~13 Å diameter and then decreases, reaching a band gap energy of 0.08 eV. Regarding mechanical properties, smaller GeNTs exhibit significantly lower elastic constants (C11). As the diameter increases, C11 values converge around 114 GPa for both armchair and zigzag GeNTs. Only the zigzag GeNTs exhibit piezoelectricity. Carrier effective masses decrease with increasing diameter, enhancing carrier mobility for larger-diameter GeNTs. The hereinreported findings provide valuable insights into the properties of germanene nanotubes, demonstrating their promising potential for nanoscale device applications and inspiring further research and synthesis of germanenerelated systems.
Creator
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<strong>Laranjeira, Jose A.S.</strong>
<strong>Denis, Pablo A.</strong>
<strong>Sambrano, Julio R.</strong>
Source
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Physica E Low-Dimensional Systems and Nanostructuresv. 158, 2024. -- e115896
Publisher
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Elsevier
Date
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2024
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
Format
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PDF
Extent
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7 p.
Language
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Inglés
Type
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Artículo
Identifier
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10.1016/j.physe.2023.115896
Germanio
Grafeno
Nanotecnología
Nanotubos
Piezoelectricidad