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Las estructuras de carbono con periodicidad tridimensional en longitudes de onda ópticas
1A. A. Zakhidov and I. Khayrullin are at AlliedSignal, Incorporated, Research and Technology, Morristown, NJ 07962-1021, USA, and in the Department of Thermal Physics of the Uzbekistan Academy of Sciences, Katartal 28, Tashkent, Uzbekistan. R. H. Baugh.
Science (New York, N.Y.)
|October 30, 1998
Resumen
Los investigadores crearon nuevos carbonos porosos que imitan las estructuras naturales del ópalo. Estos materiales exhiben propiedades de cristal fotónico, ofreciendo potencial para aplicaciones ópticas avanzadas.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Nanotecnología La nanotecnología es la nanotecnología.
- La óptica es la óptica.
Sus antecedentes:
- Los carbonos porosos con estructuras periódicas son cruciales para las aplicaciones fotónicas.
- La replicación de la formación de ópalo natural ofrece una nueva vía de síntesis.
Objetivo del estudio:
- Para sintetizar carbono poroso periódico tridimensional usando un método de plantilla de ópalo.
- Para investigar la diversidad estructural y las propiedades ópticas de los ópalos inversos de carbono resultantes.
Principales métodos:
- Síntesis de cristales de ópalo de sílice porosos.
- Sinterización de ópalos de sílice para crear interfaces interesféricas.
- Infiltración con precursores de carbono y posterior eliminación de sílice.
- Caracterización de los ópalos inversos de carbono resultantes.
Principales resultados:
- Se han sintetizado con éxito ópalos porosos de carbono inverso con diferentes estructuras.
- Se obtienen ópales inversos de diamantes y carbono vidrioso a través del llenado de volumen.
- Opales inversos de grafito producidos con hojas de grafito azulejado a través de plantillas de superficie.
- Demostró propiedades ópticas dieléctricas y metálicas en los ópalos inversos de carbono.
Conclusiones:
- El método de plantilla de ópalo es eficaz para crear diversas estructuras de carbono poroso.
- Los ópalos inversos de carbono sintetizados funcionan como cristales fotónicos ópticos.
- Estos materiales son prometedores para el desarrollo de materiales fotónicos de brecha de banda.
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