A5065828052- Diamond and Carbon-based Materials Research
- Semiconductor materials and devices
- Metal and Thin Film Mechanics
- 2D Materials and Applications
- Perovskite Materials and Applications
- Graphene research and applications
- Molecular Junctions and Nanostructures
- Protein Degradation and Inhibitors
- Surface and Thin Film Phenomena
- Advanced Thermoelectric Materials and Devices
- Multiple Myeloma Research and Treatments
- High-pressure geophysics and materials
- Wind Energy Research and Development
- Water-Energy-Food Nexus Studies
- Monoclonal and Polyclonal Antibodies Research
- Quantum and electron transport phenomena
- Peptidase Inhibition and Analysis
- Force Microscopy Techniques and Applications
- Thermal Radiation and Cooling Technologies
- Social Acceptance of Renewable Energy
- Electronic and Structural Properties of Oxides
- Thermal properties of materials
- MXene and MAX Phase Materials
- Semiconductor materials and interfaces
- nanoparticles nucleation surface interactions
MIT Lincoln Laboratory
2017-2021
Massachusetts Institute of Technology
2017-2021
California Institute of Technology
2010-2016
The interaction of water vapor with hydrophobic surfaces is poorly understood. We utilize graphene templating to preserve and visualize the microscopic structures adsorbed on surfaces. Three well-defined [H-Si(111), graphite, functionalized mica] were investigated, was found adsorb as nanodroplets (∼10-100 nm in size) all three under ambient conditions. closely associated atomic-scale surface defects step-edges wetted substrates contact angles<∼10°, resulting total adsorption that similar...
Diamond's properties (highest thermal conductivity, high hole & electron mobilities, electric breakdown field) predict that diamond field‐effect transistors (FETs) will have superior high‐power high‐frequency performance over FETs formed in other semiconductors. The development of is limited by a lack quality substrates the ionization energy primary dopant, boron (B). This results resistance too for FETs. Fortunately, recent developments are addressing these shortcomings. Single‐crystal...
Adsorbed molecules can significantly affect the properties of atomically thin materials. Physisorbed water plays a significant role in altering optoelectronic single-layer MoS2, one such 2D film. Here distinct quenching effect adsorbed on photoluminescence MoS2 is demonstrated through scanning-probe and optical microscopy. As service to our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized for online...
Summary Abnormal signaling of the protein kinase Akt has been shown to contribute human diseases such as diabetes and cancer, but proven be a challenging target for drugging. Using iterative in situ click chemistry, we recently developed multiple protein-catalyzed capture (PCC) agents that allosterically modulate enzymatic activity protein-based assay. Here, utilize similar PCCs exploit endogenous degradation pathways. We use modularity anti-Akt prepare proteolysis targeting chimeric...
The local charge carrier density of graphene can exhibit significant and highly localized variations that arise from the interaction between environment, such as adsorbed water, or a supporting substrate. However, it has been difficult to correlate spatial with individual impurity sites. By trapping (under graphene) nanometer-sized water clusters on atomically well-defined Au(111) substrate, we utilize scanning tunneling microscopy spectroscopy characterize doping influence graphene. We find...
We report on the use of graphene templating to investigate room-temperature structure and dynamics weakly bound adlayers at interfaces between solids vapors small organic molecules. Monolayer sheets are employed preserve template molecularly thin tetrahydrofuran (THF) cyclohexane atomically flat mica substrates, thus permitting a structural characterization under ambient conditions through atomic force microscopy. found first two both molecules adsorb in layer-by-layer fashion,...
In a valleytronic material, the stable momentum valleys of charge carriers form computational basis states |0> and |1>. article number 1801483, Steven A. Vitale co-workers show that circularly polarized photons can be used to prepare (σ+, red), manipulate (yellow), detect (σ−, green) carrier state, while electric fields move (vertical) (horizontal) between preparation detection regions, demonstrating new way perform computation.
Wind energy is crucial in the worldwide shift towards carbon neutrality, providing a clean, sustainable, and more affordable substitute for fossil fuels. This study examines present state of wind on global scale, its role mitigating emissions, obstacles that impede extensive implementation. Primary are financial limitations, incorporation into power grid, ecological considerations, governmental laws. Nevertheless, progress turbine design, untapped potential offshore wind, emergence hybrid...
A scanning probe image of single-layer MoS2 trapping water on a mica surface is depicted the left, with its corresponding photoluminescence right. The trapped strongly quenches fluorescence and distinctly affects optical properties. work by J. R. Heath co-workers page 2734 highlights significance local chemical environment in determining opto-electronic properties 2D materials.
Diamond Field-Effect Transistors Diamond's properties (highest thermal conductivity, high hole & electron mobilities, electric breakdown field) predict that diamond field-effect transistors (FETs) will have superior high-power high-frequency performance over FETs formed in other semiconductors. However, still some technical issues exist for and substrates. Article number 1800681 by Michael W. Geis, Travis C. Wade, co-workers reviews the state of art FET substrate development. Cover picture:...