dor_id: 4161158

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590.#.#.d: Los artículos enviados a la ""Revista Mexicana de Física"" se someten a un estricto proceso de revisión llevado a cabo por árbitros anónimos, independientes y especializados en todo el mundo"

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Sistema Regional de Información en Línea para Revistas Científicas de América Latina, el Caribe, España y Portugal (Latindex); Scientific Electronic Library Online (SciELO); SCOPUS, Web Of Science (WoS)

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: https://rmf.smf.mx/ojs/index.php/rmf

351.#.#.b: Revista Mexicana de Física

351.#.#.a: Artículos

harvesting_group: RevistasUNAM.116

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: https://revistas.unam.mx/catalogo/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

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850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: https://rmf.smf.mx/ojs/index.php/rmf/article/view/7440/7054

100.1.#.a: Rojas-Chávez, Hugo; Miralrio Pineda, Alan Joel; Juarez Garcia, Jose Manuel; Cruz-Martínez, Heriberto; Montejo-Alvaro, Fernando

524.#.#.a: Rojas-Chávez, Hugo, et al. (2025). Theoretical study of the adsorption modes of a process control agent in the growth of PbTe. Revista Mexicana de Física; Vol. 71 Núm. 1 Jan-Feb, 2025. Recuperado de https://repositorio.unam.mx/contenidos/4161158

245.1.0.a: Theoretical study of the adsorption modes of a process control agent in the growth of PbTe

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2025

264.#.1.c: 2025-01-01

653.#.#.a: Formaldehyde; lead telluride; process control agent; Wulff construction; surface energy

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico rmf@ciencias.unam.mx

884.#.#.k: https://rmf.smf.mx/ojs/index.php/rmf/article/view/7440

001.#.#.#: 116.oai:ojs2.rmf.smf.mx:article/7440

041.#.7.h: eng

520.3.#.a: The effect of formaldehyde (CH2O) as a surface modifier of PbTe is evaluated. Global descriptors are calculated through density functional theory to delve into the nature of the interaction between CH2O and the PbTe surface. The CH2O molecule is structurally optimized using the PBE exchange-correlation functional and ultrasoft pseudopotentials. Subsequently, vertical ionization energies and vertical electron affinities are calculated to elucidate how the CH2O molecule behaves energetically with respect to electron removal and gain, respectively. In order to determine regions with higher and lower charge accumulation, the electrostatic potential on the van der Waals isosurface is mapped. It is inferred that the theoretical knowledge generated is useful for proposing modes of CH2O adsorption on the PbTe surface, results that rationalize the faces exposed by PbTe after surface treatment. The optimized structures of the composite systems showed a close correlation between the change in surface energy (Δγ) and the exposed faces of PbTe. Finally, through Wulff construction, the morphology of PbTe interacting with CH2O as a process control agent is determined. It was found that formaldehyde helps decrease the surface energy of the exposed faces of PbTe, leading to decahedra and faceted morphologies.

773.1.#.t: Revista Mexicana de Física; Vol. 71 Núm. 1 Jan-Feb (2025)

773.1.#.o: https://rmf.smf.mx/ojs/index.php/rmf

022.#.#.a: ISSN electrónico: 2683-2224; ISSN impreso: 0035-001X

310.#.#.a: Bimestral

599.#.#.a: 116

264.#.1.b: Facultad de Ciencias, UNAM; Sociedad Mexicana de Física

doi: https://doi.org/10.31349/RevMexFis.71.011004

harvesting_date: 2025-01-07 00:00:00.0

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file_creation_date: 2024-12-03 20:10:26.0

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file_size: 1112900

last_modified: 2025-01-07 00:00:00

license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es

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Artículo

Theoretical study of the adsorption modes of a process control agent in the growth of PbTe

Rojas-Chávez, Hugo; Miralrio Pineda, Alan Joel; Juarez Garcia, Jose Manuel; Cruz-Martínez, Heriberto; Montejo-Alvaro, Fernando

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Rojas-Chávez, Hugo, et al. (2025). Theoretical study of the adsorption modes of a process control agent in the growth of PbTe. Revista Mexicana de Física; Vol. 71 Núm. 1 Jan-Feb, 2025. Recuperado de https://repositorio.unam.mx/contenidos/4161158

Descripción del recurso

Autor(es)
Rojas-Chávez, Hugo; Miralrio Pineda, Alan Joel; Juarez Garcia, Jose Manuel; Cruz-Martínez, Heriberto; Montejo-Alvaro, Fernando
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Theoretical study of the adsorption modes of a process control agent in the growth of PbTe
Fecha
2025-01-01
Resumen
The effect of formaldehyde (CH2O) as a surface modifier of PbTe is evaluated. Global descriptors are calculated through density functional theory to delve into the nature of the interaction between CH2O and the PbTe surface. The CH2O molecule is structurally optimized using the PBE exchange-correlation functional and ultrasoft pseudopotentials. Subsequently, vertical ionization energies and vertical electron affinities are calculated to elucidate how the CH2O molecule behaves energetically with respect to electron removal and gain, respectively. In order to determine regions with higher and lower charge accumulation, the electrostatic potential on the van der Waals isosurface is mapped. It is inferred that the theoretical knowledge generated is useful for proposing modes of CH2O adsorption on the PbTe surface, results that rationalize the faces exposed by PbTe after surface treatment. The optimized structures of the composite systems showed a close correlation between the change in surface energy (Δγ) and the exposed faces of PbTe. Finally, through Wulff construction, the morphology of PbTe interacting with CH2O as a process control agent is determined. It was found that formaldehyde helps decrease the surface energy of the exposed faces of PbTe, leading to decahedra and faceted morphologies.
Tema
Formaldehyde; lead telluride; process control agent; Wulff construction; surface energy
Idioma
eng
ISSN
ISSN electrónico: 2683-2224; ISSN impreso: 0035-001X

Enlaces