Diseño de celdas solares de perovskitas bidimensionales con eficiencia y estabilidad mejorada

Autores/as

DOI:

https://doi.org/10.17533/udea.redin.20210424

Palabras clave:

perovskitas de haluro metal bidimiensionales, celdas solares, estabilidad, cationes orgánicos

Resumen

Las celdas solares de Perovskita han atraído la atención de la comunidad científica en los últimos años debido a los avances significativos en su eficiencia. Sin embargo, su estabilidad es todavía un problema que limita el avance de esta tecnología. En este trabajo se presenta la fabricación y caracterización de pervoskitas bidimiensionales pertenecientes a la familia Ruddlesden-Poppery (A)2(MA)n−1PbnI3n+1 (se estudiaron 3 cationes grandes en la posición A: n-propilamonio, t-Butilamonio o Bencilamonio). La modulación de estos cationes que promueven la formación de una estructura bidimensional, generó un incremento en el bandgap de los materiales, así como una mejora en su estabilidad térmica y a la humedad. Aunque naturalmente la introducción de estos cationes genera una disminución en las propiedades de transporte, reduciendo la corriente de los dispositivos, se lograron obtener dispositivos con eficiencias de 10,35% para (BUA)2(MA)2Pb3I10, que, presentando una estabilidad mejorada, lograron retener el 68% de valor inicial luego de 1700h sin encapsulamiento.

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Biografía del autor/a

Daniel Ramírez, Universidad de Antioquia

Profesor del Departamento de Ingenieria de Materiales. Centro de Investigación, Innovación y Desarrollo de Materiales CIDEMAT.

Franklin Jaramillo, Universidad de Antioquia

Profesor del Departamento de Ingeniería de Materiales. Centro de Investigación, Innovación y Desarrollo de Materiales CIDEMAT.

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Publicado

2021-04-14

Cómo citar

Ramírez, D., & Jaramillo, F. (2021). Diseño de celdas solares de perovskitas bidimensionales con eficiencia y estabilidad mejorada. Revista Facultad De Ingeniería Universidad De Antioquia, (100), 67–74. https://doi.org/10.17533/udea.redin.20210424

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