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Huevos coloidales supracristalinos: crecimiento epitaxial y supracristales tridimensionales independientes en

Zhijie Yang¹, Thomas Altantzis², Daniele Zanaga²

¹Université Paris Diderot , Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 Rue J-A de Baïf, 75205, Cedex 13 Paris, France.

Journal of the American Chemical Society

|February 25, 2016

Resumen

Los investigadores desarrollaron "huevos coloidales supracristalinos" para el ensamblaje avanzado de nanocristales. Este método permite la creación de superredes de nanocristales binarios complejos anteriormente inalcanzables con técnicas convencionales.

Área de la Ciencia:

Ciencias de los materiales
Nanotecnología
Química coloidal

Sus antecedentes:

Las reacciones confinadas a la plantilla permiten la síntesis de moléculas complejas.
La mejora de la calidad de los nanocristales mediante plantillas tiene más de 20 años.
El ensamblaje de nanocristales coloidales enfrenta limitaciones debido a la disponibilidad de plantillas y el control espacial.

Objetivo del estudio:

Diseñar un nuevo sistema para el ensamblaje controlado de nanocristales.
Para superar las limitaciones en la síntesis de nanocristales coloidales mediada por plantilla.
Para lograr un crecimiento anisotrópico en superredes de nanocristales binarios.

Principales métodos:

La formación de "huevos coloidales supracristalinos" mediante el ensamblaje controlado de nanocristales.
Utilizando el crecimiento excesivo epitaxial en los coloidosomas.
Extendiendo el crecimiento supracristalino a sistemas binarios con malos ajustes.

Principales resultados:

Creación exitosa de supercristales coloidales complejos.
Logró el crecimiento de superred anisotrópica en sistemas binarios.
Produjo superredes de nanocristales independientes que antes eran imposibles.

Conclusiones:

El sistema de "huevos coloidales supracristalinos" ofrece un nuevo paradigma para el ensamblaje de nanocristales.
Este enfoque supera las limitaciones anteriores en el control de la formación de superredes de nanocristales.
Permite la síntesis de superredes de nanocristales binarios independientes avanzados.

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