239 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
6 papers
Density Functional Tight-Binding Enables Tractable Studies of Quantum Plasmonics
Nikhil S. Chellam, Subhajyoti Chaudhuri, Abhisek Ghosal +2
Routine investigations of plasmonic phenomena at the quantum level present a formidable computational challenge due to the large system sizes and ultrafast timescales involved. Thi…
Density Functional Tight-Binding Captures Plasmon-Driven H Dissociation on Al Nanocrystals
Nikhil S. Chellam, George C. Schatz
Aluminum nanocrystals offer a promising platform for plasmonic photocatalysis, yet a detailed understanding of their electron dynamics and consequent photocatalytic performance has…
Electron-Induced Radiation Chemistry in Environmental Transmission Electron Microscopy
Kunmo Koo, Nikhil S. Chellam, Sangyoon Shim +4
Environmental transmission electron microscopy (E-TEM) enables direct observation of nanoscale chemical processes crucial for catalysis and materials design. However, the high-ener…
Lithography-free IR polarization converters via orthogonal in-plane phonons in a-MoO3 flakes
Sina Abedini Dereshgi, Thomas G. Folland, Akshay A. Murthy +5
Exploiting polaritons in natural vdW materials has been successful in achieving extreme light confinement and low-loss optical devices and enabling simplified device integration. R…
Windowless Observation of Evaporation-Induced Coarsening of Au-Pt Nanoparticles in Polymer Nanoreactors
Jingshan S. Du, Peng-Cheng Chen, Brian Meckes +4
The interactions between nanoparticles and solvents play a critical role in the formation of complex, metastable nanostructures. However, direct observation of such interactions wi…
Valley-Polarized Exciton-Polaritons in a Monolayer Semiconductor
Yen-Jung Chen, Jeffrey D. Cain, Teodor K. Stanev +2
Single layers of transition metal dichalcogenides are two-dimensional direct bandgap semiconductors with degenerate, but inequivalent, `valleys' in the electronic structure that ca…