Correlation of Morphology Evolution with Carrier Dynamics in InN Films Heteroepitaxially Grown by MOMBE

In this study, we report the catalyst-free growth of n-type wurtzite InN, along with its optical properties and carrier dynamics different surface dimensionalities. The self-catalyzed epitaxial InN nanorods grown by metal–organic molecular-beam epitaxy on GaN/Al2O3(0001) substrates has been demonstrated. substrate temperature is dominant in controlling nanorods. A dramatic morphological change from 2D-like to 1D occurs decreasing temperature. have a low dislocation density good crystalline quality, compared films. terms properties, nanorod structure exhibits strong recombination Mahan excitons luminescence, an obvious spatial correlation effect phonon dispersion. downward band at leads photon energy-dependent lifetime being upshifted high-energy side.