Polar optical phonon states and their electron-phonon coupling properties in a wurtzite nitride quantum dot

Influence of spin–orbit interactions on the polaron properties in wurtzite semiconductor quantum well

“…A lot of works [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] have been devoted to the investigation of optical phonon modes in such structures based on the macroscopic dielectric continuum model (DCM) and uniaxial crystal model (UCM) of Loudon [23,24]. Particularly, the polar optical (PO) phonon confinement and dispersive spectra are investigated intensively in quasi-2-dimensional [25][26][27], quasi-1-dimensional [28,29], quasi-0-dimensional [30,31] and multi-layer wurtzite nitride quantum structures [32][33][34][35][36][37].…”

Polar optical phonon states and their dispersive spectra of a wurtzite nitride superlattice with complex bases: Transfer-matrix method

“…At room and higher temperatures, the electron-phonon interactions and scattering by optical phonons play a dominant role effecting various properties of polar semiconductor quantum heterostructures, including hot-electron relaxation rates, interband transition rates, room-temperature exciton lifetimes, and many other optical and transport properties [23,24]. Moreover, since nitride material usually crystallizes in the anisotropic hexagonal wurtzite structure, the crystal dynamical properties of nitride SLs are more complex due to anisotropy of the crystal structure in contrast to those of cubic crystals [25][26][27][28][29][30][31][32]. Hence, it is necessary and important to investigate the polar optical phonon modes in wurtzite GaN-based SL with complex bases.…”