Highlights – Energy Research

/Highlights - Energy Research

Black Engineer of the Year Award

Sandia materials scientist Jon Madison (in Sandia’s Materials Mechanics & Tribology Dept.) was recently named the winner of a Black Engineer of the Year Award (BEYA) for Most Promising Scientist. Sandia National Laboratories materials scientist Jon Madison says a key to his academic and professional success was listening to the adults in his life. [...]

Asian-American Engineer of the Year (AAEOY) Awards

Two Sandia engineers were recognized during the 2015 AAEOY Awards Gala held in late February: Somuri Prasad (in Sandia’s Materials Mechanics &Tribology Dept.) received his AAEOY Award for pioneering contributions to the science/applications of tribology (interacting surfaces in relative motion) and mentorship of graduate students, postdoctoral associates, and early-career staff. Patrick Feng (in Sandia’s Rad/Nuc [...]

Second Generation Fractional Quantum Hall Effect

Authors W. Pan, K.W. Baldwin, K.W. West, L.N. Pfeiffer, and D.C. Tsui Scientific Achievement We unambiguously confirm, for the first time, a new second-generation fractional quantum Hall effect (FQHE) state at Landau level filling n=4/11. Significance and Impact This confirmation opens the door for fundamental understanding the nature of the ground state of second generation [...]

By | 2015-04-29T14:06:25+00:00 April 29th, 2015|Highlights - Energy Research|0 Comments

Elucidating the Role of Twin Boundaries in Deformation of Nanocrystalline Metals

Authors J.G. Brons, J.A. Hardwick, H.A. Padilla II, K. Hattar, G.B. Thompson, B.L. Boyce Scientific Achievement Simulation results suggest that twins don’t just facilitate a single mechanism (e.g. ‘detwinning’), but that they facilitate several separate mechanisms simultaneously. Significance and Impact Coupled experiment and modeling reveal the dramatic and complex impact of high-density twin boundaries on [...]

By | 2015-04-29T14:04:48+00:00 April 29th, 2015|Highlights - Energy Research|0 Comments

Molecular Dynamics Simulations Predict Fate of Uranium in Sediments

Authors Teich-McGoldrick, S.T., Greathouse, J.A., and Cygan, R.T. Scientific Achievement Large-scale molecular simulations identify structural properties of aqueous uranium adsorbed on mineral surfaces. Significance and Impact Detailed molecular perspective will improve the fidelity of nuclear waste performance assessment for complex natural systems in which accurate adsorption processes are difficult to assess. This work will inform [...]

By | 2015-04-29T14:02:05+00:00 April 29th, 2015|Highlights - Energy Research|0 Comments

Self-Regulated Fabrication of Size-Controlled Quantum Nanostructures

Authors Xiaoyin Xiao, Arthur J. Fischer, George T. Wang, Ping Lu, Daniel D. Koleske, Michael E. Coltrin, Jeremy B. Wright, Sheng Liu, Igal Brener, Ganapathi S. Subramania, and Jeffrey Y. Tsao Scientific Achievement We demonstrate the use of quantum-size-controlled photoelectrochemistry (PEC) to fabricate sub-10-nm nanostructures, more specifically, InGaAs quantum dots (QDs). Significance Historical advances in [...]

By | 2015-04-29T13:52:49+00:00 April 29th, 2015|Highlights - Energy Research|0 Comments

Control of Strong Light-Matter Coupling Using the Capacitance of Metamaterial Nanocavities

Authors A. Benz, S. Campione, J.F. Klem, M.B. Sinclair, and I. Brener Scientific Achievement We present experimental evidence that the Rabi splitting observed in metamaterials-semiconductor strongly-coupled systems is directly proportional to the capacitance of the resonator Significance and Impact Now we know how to maximize light matter interaction between metallic nanocavities and dipoles/emitters. This could [...]

By | 2015-04-29T13:50:49+00:00 April 29th, 2015|Highlights - Energy Research|0 Comments

BES Highlight: Stress-Induced Nanoparticle Crystallization

Authors Wu, Z. Wang, and H. Fan, “Stress-Induced Nanoparticle Crystallization” Journal of the American Chemical Society, 136, 7634-7636, May 28, 2014. Scientific Achievement Applying compressive stress to self-assembled nanoparticle arrays eliminated defects, improved structural properties, and enabled oriented crystallization at room temperature. Significance and Impact This is the first demonstration that pressure annealing of nanoparticle [...]

By | 2015-04-29T13:49:13+00:00 April 29th, 2015|Highlights - Energy Research|0 Comments

CRF: First Direct Detection of QOOH Intermediate Shows Long Lifetime of Key Species

Authors J.D. Savee, E. Papajak, B. Rotavera, H. Huang, A.J. Eskola, O. Welz, L. Sheps, C.A. Taatjes, J. Zádor, D.L. Osborn, Science, 347, 643-646 (2015). Scientific Achievement Hydroperoxyalkyl radicals—denoted QOOH—are key intermediates in autoignition chemistry, controlling the early stages of combustion. Scientists at the Combustion Research Facility directly detected this elusive intermediate for the first [...]

By | 2015-04-28T21:19:43+00:00 April 28th, 2015|Highlights - Energy Research|0 Comments