Solid-State Devices Group
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Photonic devices
LED-based lighting is the most efficient source of white light ever created. Despite this success there are many challenges that remain to advance solid-state lighting to ultra-efficiency. While at Sandia, Prof. Wierer and J. Tsao pioneered the idea of using lasers for SSL. Our group continues researching other advances, including III-nitride photonic integrated circuits, efficiency droop mitigation, micro-LEDs quantum dots, nano-scale and photonic crystal emitters, and higher efficiency designs at green-red wavelengths. These emitters have applications in lighting, displays, and quantum computing.
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III-nitride materials, growth, and physicsMore broadly, our group is interested in III-nitride materials, growth, and physics. III-nitride semiconductors are versatile and possess attractive properties such as —interband and intersubband transitions from the ultra-violet to infrared, tunable spontaneous and piezoelectric polarization, a facile ability to form nanostructures, high critical electric fields, thermal oxidation of AlInN, and stabilities to extremely high temperatures. Because of these properties, III-nitrides are an almost ideal platform for novel semiconductor device research.
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III-nitride devices
III-nitride semiconductors are promising for various applications, including power devices, RF transistors, and sensors. Here, we leverage our expertise in device development, growth, and theory to create innovative devices.
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