Why are Electron-Phonon Interactions More Pronounced in Nanoscale Materials?
In nanoscale materials, the reduced dimensions lead to enhanced surface-to-volume ratios, which in turn amplify the role of surface and interface effects. The confinement of electrons and phonons in reduced dimensions alters their interaction dynamics, making electron-phonon interactions more pronounced. Additionally, the quantum confinement effects can alter phonon dispersion and electron-phonon coupling strength.
