NIR light emitters are widely used in the areas of optical communication, spectroscopy, etc. However, the light emitters based on compound semiconductors face significant challenges with respect to their integration with silicon-based platforms because of their large footprints and low crystallinity grown on Si substrates. On the other hand, carbon nanomaterials, such as carbon nanotubes (CNTs) and graphene, are an attractive material for light emitters because (i) a small footprint emitter can easily be obtained due to its simple fabrication process, (ii) carbon nanomaterials can be prepared directly on a Si wafer, (iii) the unique optical, electrical and thermal properties are exhibited due to their low-dimensional structures. Here we talk about the electrically driven, ultra-high-speed light emitter based on carbon nanotubes and graphene [1-3].

© 2015 Japan Society of Applied Physics, Optical Society of America

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