3 papers
cond-mat.mes-hall2025
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…
cond-mat.mes-hall2025
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…
cond-mat.mtrl-sci2024
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…