| dc.contributor | NANOTECH | |
| dc.creator | Dussan, Anderson | |
| dc.creator | Mesa, Fredy | |
| dc.date.accessioned | 2016-11-02T20:39:57Z | |
| dc.date.available | 2016-11-02T20:39:57Z | |
| dc.date.created | 2016-11-02T20:39:57Z | |
| dc.date.issued | 2014 | |
| dc.identifier | http://repository.urosario.edu.co/handle/10336/12549 | |
| dc.description.abstract | Here, we present variable range hopping (VRH) models, nearest neighbor hopping (NNH) and potential barriers present at the grain boundaries, as well as mechanisms of electrical transport predominant in semiconductor materials for photovoltaic applications. We performed dark conductivity measures according to temperature for low temperature regions between 120 and 400 K in Si and Cu3BiS2 and Cu2ZnSnSe4compounds. Using the percolation theory, we obtained hopping parameters and the density of states near the Fermi, N(EF) level for all samples. Using the approach by Mott for VRH, we obtained the diffusion model, which established the relationship between conductivity and density of defect states or localized gap states of the material. The comparative analysis between models evidenced that it is possible to obtain improvement of an order of magnitude in the values of each of the hopping parameters that characterize the material. | |
| dc.language | spa | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/2.5/co/ | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | Abierto (Texto completo) | |
| dc.rights | Atribución-NoComercial-SinDerivadas 2.5 Colombia | |
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POLITICA DE TRATAMIENTO DE DATOS PERSONALES. Declaro que autorizo previa y de forma informada el tratamiento de mis datos personales por parte de LA UNIVERSIDAD DEL ROSARIO para fines académicos y en aplicación de convenios con terceros o servicios conexos con actividades propias de la academia, con estricto cumplimiento de los principios de ley. Para el correcto ejercicio de mi derecho de habeas data cuento con la cuenta de correo habeasdata@urosario.edu.co, donde previa identificación podré solicitar la consulta, corrección y supresión de mis datos. | |
| dc.source | instname:Universidad del Rosario | |
| dc.source | reponame:Repositorio Institucional EdocUR | |
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| dc.subject | Semiconductores; transporte hopping; modelo difusional. | |
| dc.title | Procesos hopping a través del modelo difusional en materiales nanocristalinos usados para aplicaciones fotovoltaicas | |
| dc.type | workingPaper | |
