A5015283208- Metallic Glasses and Amorphous Alloys
- Material Dynamics and Properties
- Glass properties and applications
- DNA and Nucleic Acid Chemistry
- Advanced biosensing and bioanalysis techniques
- Molecular Junctions and Nanostructures
- Spectroscopy and Quantum Chemical Studies
- Photosynthetic Processes and Mechanisms
- Semiconductor materials and devices
- Thermal properties of materials
- Carbon Nanotubes in Composites
- ZnO doping and properties
- Phase-change materials and chalcogenides
- Magnesium Alloys: Properties and Applications
- Thermal Radiation and Cooling Technologies
- Advanced Fluorescence Microscopy Techniques
- Material Science and Thermodynamics
- Metal and Thin Film Mechanics
- Hydrogen Storage and Materials
- Photoreceptor and optogenetics research
- Advanced Thermoelectric Materials and Devices
- Luminescence and Fluorescent Materials
- Advanced Physical and Chemical Molecular Interactions
- Conservation Techniques and Studies
- Nanopore and Nanochannel Transport Studies
Duke University
2015-2018
Center for Child and Family Health
2018
Université Grenoble Alpes
2017
Science et Ingénierie des Matériaux et Procédés
2017
Universitat Politècnica de Catalunya
2013-2016
Chinese Academy of Sciences
2006-2015
Institute of Semiconductors
2004-2015
FC Barcelona
2013
Central South University
2008
Significance Electron transport through DNA plays a central role in nucleic acid damage and repair, it is usually modeled using carrier tunneling mechanism (at short distances) hopping longer distances). We find that fluctuations into transient geometries bring multiple bases electronic degeneracy may support band-like during the resonance lifetimes over distance of ≲15 Å, obviating need to invoke electron at distances. This line research help reveal mechanisms charge multiheme proteins,...
The structural and hydrogen storage properties of (Nd1.5Mg0.5)Ni7-based alloys (i.e., A2B7-type) with a coexistence two structures (hexagonal 2H rhombohedral 3R) are investigated in this study. In both 2H- 3R-type A2B7 structures, Mg atoms occupy Nd sites Laves-type AB2 subunits rather than those AB5 because substitution for the more significantly strengthens ionic bond system. An increase A-atomic radius or B-atomic stabilizes structure, but decrease is favorable formation 3R structure....
Relaxation phenomena in glasses are a subject of utmost interest, as they deeply connected with their structure and dynamics. From theoretical point view, mechanical relaxation allows one to get insight into the different atomic-scale processes taking place glassy state. Focusing on possible applications, behavior influences properties metallic glasses. This paper reviews present knowledge The features primary secondary relaxations reviewed. Experimental data time frequency domain is...
Scanning tunneling microscope break junction measurements are used to examine how the molecular conductance of nucleic acids depends on composition their backbone and linker group electrodes. Molecular conductances 10 base pair long homoduplexes DNA, aeg-PNA, γ-PNA, a heteroduplex DNA/aeg-PNA with identical nucleobase sequence were measured. The was found vary by 12 13 times change in backbone. Computational studies show that differences between different backbones correlate structural...
A grisaille is a brown‐blackish paint applied onto the inner surface of stained glass to draw contours and details figures produce effect shades volumes. G risailles were traditionally made finely ground oxides iron but also copper, zinc, lead, or manganese mixed with flux such as lead binder fixed flat by firing. The grisailles have typical layer thickness varying between 10 100 μm are formed complex mixture pigment particles, crystalline, amorphous reaction compounds, aging, weathering...
Significance Formation of quasiparticles, such as excitons, polarons, and trions in semiconductors are the foundation for modern optoelectronics. Unlike widely investigated exciton polaron, trion, a three-body charge-exciton bound state, is less familiar due to its small binding energy conventional inorganic semiconductors. Here, employing ultrafast spectroscopy rigorously controlled charge-doping levels, we characterize trion creation decay single-walled carbon nanotubes (SWNTs), wherein...
In this work, a photothermal-resistance technique is developed to characterize the thermophysical properties of one-dimensional micro∕nanostructures. technique, periodically modulated laser beam used achieve noncontact heating suspended individual wires. The temperature response sample monitored by measuring its electrical resistance variation. A 25.4μm thick platinum wire as reference verify technique. Applying thermal diffusivity single-wall carbon nanotube bundles measured. measured...
System-environment interactions are essential in determining charge-transfer (CT) rates and mechanisms. We developed a computationally accessible method, suitable to simulate CT flexible molecules (i.e., DNA) with hundreds of sites, where the system-environment explicitly treated numerical noise modeling time-dependent site energies couplings. The properties tunable, providing us tool investigate detailed effects correlated thermal fluctuations on is parametrizable by molecular simulation...
We study the mechanical relaxation spectrum of Pd42.5Ni7.5Cu30P20 metallic glass. The effect aging on behavior is analyzed by measuring internal friction during consecutive heating runs. well-annealed glass state modeled fitting susceptibility functions to primary and secondary relaxations system. model able reproduce below transition temperature (sub-Tg region) in frequency–temperature ranges relevant for high physical properties forming ability glasses. reveals a composed overlapping...