A model for cylindrical nanoporosity based on single positron annihilation

dc.contributorFélix, M.V., Universidad De Guadalajara, Campus Universitario Lagos, Enrique Diaz de Leon S/N, Lagos de Moreno, Jalisco, Mexico, Ctro. De Fis. Apl. Y Tecn. Avanzada, Univ. Nac. Auton. De Mex., A.P. 1-1010, Querétaro, Qro. 76010, Mexico; Rodríguez-Rojas, R.A., Universidad De Guadalajara, Campus Universitario Lagos, Enrique Diaz de Leon S/N, Lagos de Moreno, Jalisco, Mexico; Castañeda-Contreras, J., Universidad De Guadalajara, Campus Universitario Lagos, Enrique Diaz de Leon S/N, Lagos de Moreno, Jalisco, Mexico; Morones, R., Fac. De Cie. Fisico-Matemat., Univ. Auton. De Nuevo Leon, Monterrey, Nuevo León, Mexico; Castaño, V.M., Universidad De Guadalajara, Campus Universitario Lagos, Enrique Diaz de Leon S/N, Lagos de Moreno, Jalisco, Mexico, Ctro. De Fis. Apl. Y Tecn. Avanzada, Univ. Nac. Auton. De Mex., A.P. 1-1010, Querétaro, Qro. 76010, Mexico
dc.creatorFelix, M.V.
dc.creatorRodriguez-Rojas, R.A.
dc.creatorCastaneda-Contreras, J.
dc.creatorMorones, R.
dc.creatorCastano, V.M.
dc.date.accessioned2015-11-18T23:43:21Z
dc.date.accessioned2022-11-02T14:44:13Z
dc.date.available2015-11-18T23:43:21Z
dc.date.available2022-11-02T14:44:13Z
dc.date.created2015-11-18T23:43:21Z
dc.date.issued2005
dc.identifierhttp://hdl.handle.net/20.500.12104/62827
dc.identifier10.1016/j.optmat.2004.11.027
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-15944426428&partnerID=40&md5=d580f033062ac48f4175f9aa63afb738
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5003232
dc.description.abstractA semiempirical positron stationary Quantum Model was developed to study nanoporosity in solid porous materials, such as silica gels. The cylindrical well potential is considered and its geometric parameters are related to the Positron Annihilation LifeTime Spectroscopy measurements (PALS). An alternative novel method to determine free volume sizes in solid materials was developed. The free volume equations of this new model were then compared to the well-known and widely utilized Spherical Free Volume Model (SFVM) and remarkable differences were found. A strong variation of the free volume size-positron lifetime relation with the geometry involved is observed as well as a strong dependence on the electron layer thickness parameter ΔR with the nature of the material. © 2004 Elsevier B.V. All rights reserved.
dc.relationOptical Materials
dc.relation27
dc.relation7
dc.relation1291
dc.relation1294
dc.relationScopus
dc.relationWOS
dc.titleA model for cylindrical nanoporosity based on single positron annihilation
dc.typeConference Paper


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