Study, fabrication and characterization of solar cells based on a-Si:H films deposited by plasma on plastic substrates.
In this work, plastic substrates PEN, Kapton Polyimide and Teflon were characterized by means of the atomic force microscopy (AFM) technique. Parameters such as maximum height of peaks and width of defects were analyzed. Regions free of defects of these surfaces were also analyzed and the most relev...
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| Formato: | tesis doctoral |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | México |
| Recursos: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/1748 |
| Acesso em linha: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1748 |
| Access Level: | acceso abierto |
| Palavra-chave: | info:eu-repo/classification/Inspec/Solar cells info:eu-repo/classification/Inspec/Polymer info:eu-repo/classification/Inspec/Plastics info:eu-repo/classification/Inspec/Photovoltaics info:eu-repo/classification/Inspec/a-Si:H info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2203 |
| Resumo: | In this work, plastic substrates PEN, Kapton Polyimide and Teflon were characterized by means of the atomic force microscopy (AFM) technique. Parameters such as maximum height of peaks and width of defects were analyzed. Regions free of defects of these surfaces were also analyzed and the most relevant statistical parameters were determined, such as the RMS roughness, the average height, skewness and kurtosis. In addition to the morphological characterization, spectral measurements were made on the plastic substrates. It was observed that the Teflon substrate has greater optical transmission in the UV spectral region compared to PEN, and exhibits greater transmission in the visible spectrum compared with PEN and Kapton. p-i-n structures were fabricated on plastic and glass substrates, and the evolution of the morphology in the different layers that make up the p-i-n structure was investigated. The study showed that the morphological characteristics of the surfaces depend on the material used as a substrate, as well as the type of the deposited layers. In addition, treatments with argon (Ar) plasma were studied to improve the adhesion of polymers and AZO films on plastic substrates. The optimal conditions that we found were the following: Power of 30 W, pressure equal to 0.3 Torr and time of 6 minutes. The treatment is the same if done at 110° C or at room temperature. Planarization study of surface defects was carried out on flexible substrates. The study was characterized by AFM and transmittance. Fabrication and characterization of completely inorganic flexible solar cells and some hybrids were carried out. The performance of the solar cells was evaluated through J-V performance curves under AM1.5 illumination. |
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