Electronic Properties of Black Phosphorus Single Crystals and Intercalation Compounds

Abstract Actual procedures for the preparation of black phosphorus single crystals by a bismuth flux method have been explored and the details are described. The anisotropy and the temperature dependence of the electrical conductivity and the Raman scattering spectra of the crystals obtained by the above-method have been measured. The reflection spectra of crystals which were prepared by a high pressure technique have also been observed and compared with the calculated data. Several preliminary attempts for synthesizing black phosphorus intercalation compounds have been carried out for the first time. Evidence for the intercalation by an X-ray analysis is presented.