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The United States needs a revolution in energy technology innovation to meet the profound economic, environmental, and national security challenges that energy poses in the 21st century. If the U.S. government does not act now to improve the conditions for innovation in energy, even in times of budget strin-gency, it risks losing leadership in one of the(More)
The observation of vanishing electrical resistance in condensed matter has led to the discovery of new phenomena such as, for example, superconductivity, where a zero-resistance state can be detected in a metal below a transition temperature T(c) (ref. 1). More recently, quantum Hall effects were discovered from investigations of zero-resistance states at(More)
Policy memo acknowlEdgMEntS The authors are grateful to the Climate Change Initiative of the Doris Duke Charitable Foundation for supporting the All responsibility for any errors or misjudgments rests solely with the authors. Cover Image: Arun Vijayakumar and Shoufeng Yang at Planar Energy Devices insert a sample into the vacuum chamber of the company's(More)
Catalytic growth of GaN nanowires by hydride vapour phase epitaxy is demonstrated. Nickel-gold was used as a catalyst. Nanowire growth was limited to areas patterned with catalyst. Characterization of the nanowires with transmission electron microscopy, x-ray diffraction, and low temperature photoluminescence shows that the nanowires are stoichiometric(More)
Several developing countries seek to build knowledge-based economies by attempting to expand scientific research capabilities. Characterizing the state and direction of progress in this arena is challenging but important. Here, we employ three metrics: a classical metric of productivity (publications per person), an adapted metric which we denote as(More)
Our Center develops tools to study nanoscale systems. We would like to control electrons and photons inside nanostructures for new nanoelectronic and nanophotonic devices, and to investigate how biological systems function at the nanoscale using techniques from the Physical Sciences. Three Research Clusters address these goals: Cluster 1: Tools for(More)
generously supported by a grant from the Doris Duke Charitable Foundation whose mission is to improve the quality of peoples' lives through grants supporting the performing arts, environmental conservation, medical research, and the prevention of child abuse, and through the preservation of the cultural and environmental legacy of Doris Duke's properties.(More)