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Semiconductor nanostructures

Nanoscience or nanotechnology is currently quite familiar, in its terminology and even in its concept, to people. It is being closely connected and applied to many other different research areas. Much of interest on nanoscience or nanotechnology has arisen from exploring new phenomena and overcoming current technological limitations in electronic devices caused by their structural features with nanometer-scale sized components and materials inside. Besides, unique properties of nanomaterials have recently opened interdisciplinary research fields. Nanomaterials are being started to be used as key components for many devices. A versatile chemical and physical property of semiconducting nanostructures depending on their dimensionality, size, and surface area makes the nanomaterials be greatly potential building blocks for electronic, photonic, and sensing device fabrications.

Especially, there has been considerable interest in ZnO and GaN since this wide band gap material has been used in conventional planar structures to fabricate UV-blue LEDs and lasers, as well as a range of other high-performance electronic devices. ZnO and GaN nanostructures include quantum dot, nanowire, and complex shapes with dimensionality of from zero to three. In this section, Research areas being pursued includ the following: 

  • Growth of nanomaterials: studies of the growth and characterization of nanomaterials with an emphasis on the design and synthesis of 1D nanostructures  with novel morphologies and the selective growth for electronic and optoelectronic devices.
     

  • Nanomaterials properties: studies of fundamental structural and physical properties of semiconductor nanomaterials. Especially unique optical dynamics of semiconductor nanomaterials is characterized using photoluminescence measurement.
     

  • Applications of nanostructures:  photovoltaic devices, radiation detector, LED, sensors  

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