Oil/water interface synthesis and optical property of strontium tungstate nanorods

Strontium tungstate nanorods with uniform morphology were controllably synthesized for the first time via a facile liquid-solid-solution (LSS) process through oil/water interface. These nanorods have diameters of about 50nm and length of about 500 nm. XRD curves indicated that as-obtained nanorods were body-centered tetragonal phases with lattice parameters of a = 5.416 angstrom and c = 11.95 angstrom, which is consistent with the values reported in JCPDS card No. 08-0490. Study on the optical properties of as-obtained nanorods showed that SrWO4 nanorods possess different optical properties from bulk counterpart. A mechanism of the formation process was also discussed.