Publications by authors named "J E Reutt-Robey"
Article Synopsis
- The text discusses a new technique called pascalammetry that helps understand ion transport in solid-state electrochemical devices by applying stress and measuring current responses.
- This method has been tested on specific microbattery models, revealing that stress can influence lithium diffusion, which may lead to battery degradation.
- The findings suggest that pascalammetry could be a valuable tool for detecting stress in solid-state batteries and other electrochemical systems, providing insights that go beyond traditional methods.
Graphene decorated with 5d transitional metal atoms is predicted to exhibit many intriguing properties; for example iridium adatoms are proposed to induce a substantial topological gap in graphene. We extensively investigated the conductivity of single-layer graphene decorated with iridium deposited in ultra-high vacuum at low temperature (7 K) as a function of Ir concentration, carrier density, temperature, and annealing conditions. Our results are consistent with the formation of Ir clusters of ~100 atoms at low temperature, with each cluster donating a single electronic charge to graphene.
View Article and Find Full Text PDFA carbon-nanotube-enabling scanning probe technique/nanotechnology for manipulating and measuring lithium at the nano/mesoscale is introduced. Scanning Li-nanopipette and probe microscopy (SLi-NPM) is based on a conductive atomic force microscope (AFM) cantilever with an open-ended multi-walled carbon nanotube (MWCNT) affixed to its apex. SLi-NPM operation is demonstrated with a model system consisting of a Li thin film on a Si(111) substrate.
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- Serpentine chain structures of C60 were identified in STM images on certain coated surfaces, differing from the typical close-packed arrangements.
- A study focused on C60/ZnPc/Ag(111) heterolayers explored these unique structures and their underlying mechanisms.
- Density functional theory and molecular dynamics simulations demonstrated how charge transfer and competing forces among C60 molecules led to the formation of these chain phases.
Surface self-assembly process of 9-anthracene carboxylic acid (AnCA) on Ag(111) was investigated using STM. Depending on the molecular surface density, four spontaneously formed and one annealed AnCA ordered phases were observed, namely a straight belt phase, a zigzag double-belt phase, two simpler dimer phases, and a kagome phase. The two high-density belt phases possess large unit cells on the scale length of 10 nm, which are seldom observed in molecular self-assembled structures.
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