Abstract
Longitudinal twinning Zn2GeO4 nanowires, with diameters from several tens of nanometers to 200–300 nm along the growth orientation and lengths of several tens of micrometers, were successfully synthesized by a simple thermal evaporation method. A distinct twin plane of (101) was observed from the twinning Zn2GeO4 nanowires. Zn2GeO4 nanowires in both sides of the twinning nanowires are single crystalline, with a rhombohedral crystal phase, and grow along the [21] direction. The angle between the (300) plane (or (300)t plane) and the twin plane is identified with the results of the SAED pattern and the atomic model. A possible growth mechanism for longitudinal twinning Zn2GeO4 nanowires was proposed. The vibrating and luminescence properties of the twinning Zn2GeO4 nanowire were investigated by Raman and photoluminescence spectroscopy at room temperature.
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