Low temperature growth and characterizations of single crystalline CuGeO3nanowires

Abstract

Single crystalline CuGeO₃nanowires with a diameter of 30–200 nm and a length of >10 µm have been prepared by a facile hydrothermal deposition route at low temperature. The nanowires are orthorhombic single crystals, which are supported by X-ray diffraction, selected area electron diffraction, high-resolution transmission electron microscopy and Raman analyses. Room temperature photoluminescence (PL) measurement shows a strong blue light emission peak at 442 nm with a broad emission band. The formation and growth of CuGeO₃nanowires are proposed based on the oxide-assisted growth mechanism. The CuGeO₃nanowires with single crystalline nature appear to be one of the best candidates for investigation of the related physical, chemical properties and further potential applications among ternary nanometallic oxides.