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Desarrollo de nuevos polímeros conjugados con cadenas laterales donante-pi-puente-aceptor para celdas solares de alto
Fei Huang1, Kung-Shih Chen, Hin-Lap Yip
1Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195-2120, USA.
Journal of the American Chemical Society
|October 1, 2009
Resumen
Se sintetizaron dos nuevos polímeros conjugados bidimensionales para las células solares poliméricas, logrando una alta eficiencia de conversión de potencia. Este nuevo diseño ofrece flexibilidad para ajustar las propiedades ópticas y energéticas para mejorar el rendimiento fotovoltaico.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Electrónica orgánica y electrónica orgánica.
- La energía fotovoltaica es fotovoltaica.
Sus antecedentes:
- Los polímeros conjugados donante-aceptor (DA) lineales tradicionales son ampliamente utilizados en las células solares poliméricas.
- Lograr una alta eficiencia de conversión de potencia (PCE) en las células solares poliméricas requiere un control preciso de la estructura y las propiedades del polímero.
Objetivo del estudio:
- Diseñar y sintetizar nuevos polímeros conjugados con una estructura bidimensional para mejorar las aplicaciones fotovoltaicas.
- Explorar una nueva estrategia de diseño para ajustar los espectros de absorción de polímeros y los niveles de energía.
Principales métodos:
- Síntesis de dos nuevos polímeros conjugados con una estructura D-A bidimensional única.
- Caracterización de las propiedades ópticas y electroquímicas de los polímeros sintetizados.
- Fabricación y prueba de células solares poliméricas utilizando los nuevos materiales.
Principales resultados:
- Los polímeros sintetizados exhibieron excelentes propiedades fotovoltaicas.
- Se logró una alta eficiencia de conversión de potencia (PCE) del 4,74%.
- La estructura bidimensional permitió ajustar flexiblemente los espectros de absorción y los niveles de energía.
Conclusiones:
- El novedoso diseño bidimensional de polímero conjugado es efectivo para mejorar el rendimiento de las células solares poliméricas.
- Este enfoque ofrece un camino prometedor para el desarrollo de materiales fotovoltaicos orgánicos de próxima generación.
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