Europium Chalcogenide Nanowires by Vapor Phase Conversions

We have converted Eu­(OH)3 single crystal nanowires to Eu2O3 single crystal nanowires and studied the transformation using temperature and atmosphere controlled X-ray powder diffraction. The single crystal Eu2O3 nanowires were investigated as a starting material for the preparation of controlled morphology synthesis of the magnetic semiconductors EuO, EuS, and EuSe using gas phase reagents. In addition, we also explored the synthesis of EuOCl nanowires from Eu2O3 as an alternative route to EuO and EuS nanowires.