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F-doped LaOBiSe$_{2}$ superconducting single crystals with typical size of2$\times$4$\times$0.2 mm$^{3}$ are successfully grown by flux method and thesuperconducting properties are studied. Both the superconducting transitiontemperature and the shielding volume fraction are effectively improved withfluorine doping. The LaO$_{0.48}$F$_{0.52}$BiSe$_{1.93}$ sample exhibitszero-resistivity at 3.7 K, which is higher than that of theLaO$_{0.5}$F$_{0.5}$BiSe$_{2}$ polycrystalline sample (2.4K). Bulksuperconductivity is confirmed by a clear specific-heat jump at the associatedtemperature. The samples exhibit strong anisotropy and the anisotropy parameteris about 30, as estimated by the upper critical field and effective mass model

Superconducting properties of novel BiSe$_{2}$-based layered LaO$_{1-x}$F$_{x}$BiSe$_{2}$ single crystals