Preparación y caracterización estructural del nuevo semiconductor tipo-diamante CuMnInSe3

• Gerzon Delgado Universidad del Zulia
• Pedro Grima-Gallardo Laboratorio de Cristalografía, Departamento de Química, Facultad de Ciencias, Universidad de Los Andes - Venezuela
• Miguel Quintero Laboratorio de Cristalografía, Departamento de Química, Facultad de Ciencias, Universidad de Los Andes - Venezuela
• Cecilia Chacón Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada-Instituto Politécnico Nacional - México

Palabras clave: Calcogenuros, Semiconductores, Síntesis química, Datos de difracción de polvo, Estructura cristalina.

Resumen

El compuesto calcogenuro CuMnInSe3 , perteneciente al sistema I-II-III-VI3 , ha sido investigado mediante difracción de rayos-X en muestras policristalinas y su estructura cristalina ha sido refinada utilizando el método Rietveld. El patrón de polvo se compone de 85,3 % de la fase principal CuMnInSe3 y 14,7 % de la fase secundaria MnSe. Este material cristaliza con una estructura tipo CuFeInSe3 en el grupo espacial P 4 2c, (N° 112), con parámetros de celda unidad a = 5,7907(5) Å, c = 11,648(1) Å, V = 390,58(8) Å3 .

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