Synthesis and optical study of crystalline GaP nanoflowers

Liu, B. D.; Bando, Y.; Tang, C. C.; Golberg, D.; Xie, R. G.; Sekiguchi, T.
February 2005
Applied Physics Letters;2/21/2005, Vol. 86 Issue 8, p083107
Academic Journal
GaP nanoflowers composed of numerous GaP nanowires are synthesized through heating InP and Ga2O3 powders. Crystalline GaP nanowires growing from Ga-rich particles have a cubic structure, uniform diameters of ∼300 nm, and lengths from several to tens of micrometers. Typically, an individual GaP nanowire displays a hexagonal prism-like morphology with <111> as the preferential growth direction. Cathodoluminescence measurements show that GaP nanoflowers and GaP nanowires emit at ∼600 and ∼750 nm, respectively. Additional low-intensity emission peaks are observed for GaP nanoflowers at ∼450 nm.


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