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|Title:||The influence of nitrogen plasma treatment on the lattice vibrational properties of hydrothermally grown ZnO nanorods|
|Citation:||Le, H.Q., Tripathy, S., Chua, S.J. (2008). The influence of nitrogen plasma treatment on the lattice vibrational properties of hydrothermally grown ZnO nanorods. Applied Physics Letters 92 (14) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2905282|
|Abstract:||In this study, the authors have investigated the optical properties of hydrothermally grown ZnO nanorods subjected to the combination of thermal annealing and nitrogen plasma treatments. In particular, ultraviolet-visible micro-Raman scattering has been used to study the influence of nitrogen incorporation in ZnO nanorods grown on GaN/sapphire templates. The band-edge photoluminescence spectra show significant changes due to nitrogen plasma treatment. In addition, visible Raman spectra show intensity enhancement of the disorder-activated vibrational modes from plasma-treated ZnO nanorods. Multiple longitudinal optical (LO) phonons are observed under ultraviolet resonant Raman excitation from these nanorods. The first-order resonant LO phonon line shape fitting is correlated to the nitrogen-induced lattice disorder. © 2008 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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