Synthesis of silicon quantum dots using chitosan as a novel reductor agent



Título del documento: Synthesis of silicon quantum dots using chitosan as a novel reductor agent
Revue: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000447094
ISSN: 0035-001X
Autores: 1
1
1
1
2
2
1
Instituciones: 1Universidad Estatal de Sonora, Hermosillo Sonora. México
2Universidad de Sonora, Departamento de Física, Hermosillo Sonora. México
Año:
Periodo: Mar-Abr
Volumen: 67
Número: 2
Paginación: 249-254
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés In the present paper we report a novel synthesis method of silicon quantum dots (SiQDs) using 3-Aminopropyltriethoxysilane (APTES) as silicon precursor and low molecular weight chitosan (CS) as reducing agent. The obtained SiQDs have a hydrodynamic diameter of 2.3 nm, water dispersible, presents blue emission band at 434.5 nm (2.85 eV) with a Commission Internationale de l’Éclairage 1931 (CIE1931) chromaticity coordinates (x = 0.1665, y = 0.1222), the experimental absorbance of the SiQDS was measured and the band gap (Eg) was estimated through PerkinElmer’s method, for which the obtained value was 3.1 eV and a positive ζ-potential of + 35 mV, resulting in photonics, microelectronics, and biotechnological potential applications
Disciplinas: Física y astronomía
Palabras clave: Física,
Puntos cuánticos de silicio,
Chitosan,
Síntesis ecológica
Keyword: Physics,
Silicon quantum dots,
Chitosan,
Eco-friendly synthesis
Texte intégral: Texto completo (Ver HTML) Texto completo (Ver PDF)