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Transistores de película delgada de alto rendimiento que utilizan nanocables semiconductores y nanocintas
Xiangfeng Duan1, Chunming Niu, Vijendra Sahi
1Nanosys, Inc., Advanced Research Center, 200 Boston Ave, Medford, Massachusetts 02155, USA. xduan@nanosysinc.com
Nature
|September 19, 2003
Resumen
Los investigadores desarrollaron transistores de película delgada (TFT) de alto rendimiento utilizando nanocables de silicio o nanocintas de sulfuro de cadmio sobre plástico. Este avance permite una electrónica flexible avanzada al superar las limitaciones de temperatura de las tecnologías actuales.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Nanotecnología La nanotecnología es la nanotecnología.
- Ingeniería Electrónica Ingeniería Electrónica Ingeniería.
Sus antecedentes:
- Los transistores de película delgada (TFT) son cruciales para la macroelectrónica, con un creciente interés en sustratos plásticos flexibles.
- Los TFT existentes en plástico (amorfo-Si, orgánico) tienen limitaciones como la baja movilidad de la portadora o altas temperaturas de procesamiento.
- Las tecnologías actuales dificultan las aplicaciones que requieren computación, control o comunicación en plataformas flexibles.
Objetivo del estudio:
- Desarrollar TFT de alto rendimiento compatibles con el procesamiento a baja temperatura en sustratos plásticos.
- Para permitir nuevas aplicaciones en electrónica flexible, portátil y desechable.
- Explorar materiales semiconductores alternativos más allá del silicio para TFTs avanzados.
Principales métodos:
- Fabricación de TFTs que utilizan películas delgadas de nano alambre de silicio orientado.
- Fabricación de TFTs que utilizan nanocintas de sulfuro de cadmio como canales semiconductores.
- Proceso de ensamblaje a baja temperatura demostrado en varios sustratos, incluidos los plásticos.
Principales resultados:
- Los TFT de alto rendimiento se fabricaron con éxito en sustratos de plástico.
- Los TFT desarrollados exhiben un rendimiento comparable o superior al silicio policristalino.
- El proceso de fabricación es adaptable a una amplia gama de materiales, incluyendo semiconductores de alta movilidad como InAs e InP.
Conclusiones:
- Los TFT de nanocables de Si orientados y de nanoribbon CdS ofrecen una solución viable para la macroelectrónica de baja temperatura en plástico.
- Este enfoque supera las limitaciones de las tecnologías existentes, allanando el camino para dispositivos electrónicos flexibles avanzados.
- El método demostrado amplía el alcance de los materiales utilizables en la fabricación de TFT de alto rendimiento y baja temperatura.
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