ScienceDaily (Nov. 4, 2008)

— The Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanoscience) is collaborating with the University of Hamburg in the development of composite materials based on semiconductor nanoparticles and carbon nanotubes as functional materials for efficient light emitting diodes and photovoltaic devices.

Semiconductor nanocrystals or also called quantum dots exhibit outstanding optical properties compared to organic dyes. Due to the quantum confinement their emission color can be continuously tuned from the ultraviolet to the near infrared range by changing the size and chemical composition. They exhibit a broad absorption spectrum, a narrow emission band and large absorption cross sections.

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