Mostrar el registro sencillo del ítem
dc.contributor.author
Melia, Lucas Fabián
dc.contributor.author
Barrionuevo, Santiago
dc.contributor.author
Ibañez, Francisco Javier
dc.date.available
2023-07-13T13:21:27Z
dc.date.issued
2022-02
dc.identifier.citation
Melia, Lucas Fabián; Barrionuevo, Santiago; Ibañez, Francisco Javier; Think Outside the Lab: Modeling Graphene Quantum Dots in Pandemic Times; American Chemical Society; Journal Of Chemical Education; 99; 2; 2-2022; 745-751
dc.identifier.issn
0021-9584
dc.identifier.uri
http://hdl.handle.net/11336/203694
dc.description.abstract
A computational laboratory experiment is carried out to investigate the size-, geometry-, and chemistry-dependent properties of small molecules known as polycyclic aromatic hydrocarbons (PAHs) at the Facultad de Ingeniería (Universidad Nacional de La Plata, UNLP), Buenos Aires, Argentina. This computational research was adapted for upper-division undergraduate and initial graduate education levels. Due to the adverse circumstances of the pandemic, students were challenged to perform theoretical calculations on a regular computer at home. They were able to model PAH molecules similar to graphene quantum dots (GQDs) and learn how to use various open and freely available softwares, including visual molecular dynamics (VMD), Avogadro, nanoHUB.org, and ORCA. Through these computational tools, students designed PAHs of various sizes, geometries, and functional groups in order to study some of their optoelectronic properties. They simulated UV-vis absorbance spectra based on changes in size, geometry, and chemistry at the edges of the GQDs. Students then calculated the energy of the HOMO-LUMO gap and compared using three different methods included in ORCA corresponding to Hartree-Fock (H-F) approximation, density functional theory (DFT), and time-dependent DFT (TD-DFT). Finally, based on the results obtained, students propose the construction of more efficient solar devices by tuning the size and geometry of GQDs.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Upper-Division Undergaduate
dc.subject
Graduate Education/Research
dc.subject
Physical Chemistry
dc.subject
Quantum Chemistry
dc.subject.classification
Otras Nanotecnología
dc.subject.classification
Nanotecnología
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Think Outside the Lab: Modeling Graphene Quantum Dots in Pandemic Times
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-05T12:06:19Z
dc.journal.volume
99
dc.journal.number
2
dc.journal.pagination
745-751
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Melia, Lucas Fabián. Universidad Nacional de La Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
dc.description.fil
Fil: Barrionuevo, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
dc.description.fil
Fil: Ibañez, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
dc.journal.title
Journal Of Chemical Education
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acs.jchemed.1c00879
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/acs.jchemed.1c00879
Archivos asociados