Dopaje de semiconductor orgánico basado en ftalocianina de silicio
Resumen
Tradicionalmente, los compuestos orgánicos han sido considerados aislantes eléctricos. Sin embargo, el estudio de los semiconductores orgánicos ha llevado al desarrollo de alternativas al silicio semiconductor, basadas en moléculas π-conjugadas tales como las ftalocianinas. En el presente estudio, se llevó a cabo un dopaje químico sobre el dicloruro de ftalocianina de silicio (SiPcCl2), con un ácido dieninoico con sustituyente bromuro, Br-1 (BrDAc). El semiconductor orgánico dopado fue sublimado al alto vacío y depositado sobre diferentes sustratos, para llevar a cabo una caracterización estructural, óptica, y eléctrica como película delgada. Para la caracterización estructural se realizó espectroscopía infrarroja, y se evaluaron parámetros ópticos como la transmitancia y absorbancia, obtenidos mediante espectroscopía ultravioleta-visible. A partir de estos resultados se determinaron por medio del modelo de Tauc, las brechas energéticas. Finalmente, se fabricaron dispositivos eléctricos simples: ITO/SiPcCl2-BrDAc/Ag que fueron caracterizados eléctricamente, para determinar el comportamiento cuando la película semiconductora SiPcCl2-BrDAc forma parte de un dispositivo simple.
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Derechos de autor 2023 Emilio Iván Sandoval-Plata, Ricardo Ballinas-Indili, Cecilio Álvarez-Toledano, María Elena Sánchez-Vergara
Esta obra está bajo licencia internacional Creative Commons Reconocimiento-NoComercial-SinObrasDerivadas 4.0.
