Simulación, caracterización y fabricación de celdas solares de CdTe/CdS usando CSS y CBD
Solar cells based on CdTe/CdS thin films are some of the most promising photovoltaic devices due to their high theoretical conversion value of 29%. In this work, deposits of thin films of CdTe and CdS were made over a substrate of fluorine doped tin oxide (FTO) with an activation in CdCl2. Thin film...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | México |
| Institución: | Universidad Autónoma de Zacatecas |
| Repositorio: | Repositorio Institucional Caxcán |
| Idioma: | español |
| OAI Identifier: | oai:http://ricaxcan.uaz.edu.mx:20.500.11845/1767 |
| Acceso en línea: | http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/1767 |
| Access Level: | acceso abierto |
| Palabra clave: | INGENIERIA Y TECNOLOGIA [7] Celdas solares Películas delgadas Energias alternas |
| Sumario: | Solar cells based on CdTe/CdS thin films are some of the most promising photovoltaic devices due to their high theoretical conversion value of 29%. In this work, deposits of thin films of CdTe and CdS were made over a substrate of fluorine doped tin oxide (FTO) with an activation in CdCl2. Thin films of CdS was deposited by the chemical bath method (CBD) and thin films of CdTe was deposited by the close space sublimation method (CSS). The samples were exposed to an activation of CdCl2 in order to improve the microstructure of the thin films and were analyzed by X-ray diffraction (XRD). In addition, it was evaluated if these devices were able to generate a current when exposed to light. Different deposition configurations of the thin films were made and a design for the creation of Cds/CdTe cells was established. Virtual models of the CdTe and CdS unit cells were created using the Materials Studio 4.4 software package. The band structures and the density of states of both semiconductor compounds were simulated obtaining results very similar to those reported in the literature. Finally, during this work, the operation of the close space sublimation reactor was analyzed and some adjustments were made that allowed it to be used within the Alternative Energy Laboratory of the Universidad Autonóma de Zacatecas. |
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