Doping-concentration-dependent electric and thermoelectric properties of 2-dimensional silicon thin films

To study the electric and the thermoelectric properties of silicon thin films (SiTFs), we fabricated devices having SiTFs by using conventional complementary metal-oxide-semiconductor (CMOS)-compatible processes for mass production and extendibility. The conductivities and the Seebeck coefficients of SiTFs for dose concentrations of 5 × 1014 cm -2, 1 × 1015 cm -2 and 5 × 1015 cm -2 and for temperatures in the range of 310 to 430 K were measured by using homemade setup. The measured power factors of the SiTFs showed a slight increasing tendency with increasing measurement temperature and were maximum at a dose concentration of 1 × 1015 cm -2 for both n- and p-type films at 330 K.