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Title: Synthesis and Characterization of Core-Shell GaP@GaN and GaN@GaP Nanowires
Authors: 國立臺灣師範大學化學系
H.-M. Lin
Y.-L. Chen
J. Yang
Y.-C. Liu
K.-M. Yin
J.-J. Kai
F.-R. Chen
L.-C. Chen
Y.-F. Chen
Chia-Chun Chen
Issue Date: 9-Apr-2003
Publisher: American Chemical Society
Abstract: A convenient thermal CVD route to core−shell GaP@GaN and GaN@GaP nanowires is developed. The structural analyses indicate that the nanowires exhibit a two-layer and wirelike structure. High-resolution transmission electron microscopy (HRTEM) images reveal misfit dislocation loops at the interface of the nanowires. Unusual temperature dependences of the photoluminescence (PL) intensity of GaP@GaN nanowires are observed, and they are interpreted by the piezoelectric effect induced from lattice mismatch between two semiconductor layers. In the Raman spectra of GaN@GaP nanowires, an unexpected peak at 386 cm-1 is found and assigned to a surface phonon mode.
ISSN: 1530-6984
Other Identifiers: ntnulib_tp_C0301_01_018
Appears in Collections:教師著作

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