Electrical and optical properties of undoped and antimony-doped tin oxide films

Abstract

Tin oxide films have been prepared on glass substrates by spray pyrolysis technique. The electrical and optical properties of undoped and antimony-doped tin oxide films have been studied. The temperature dependence of electron mobility has been analyzed to establish the electron conduction mechanism. Optical properties near the plasma edge have been analyzed using Drude’s theory. The dependence of effective mass on carrier concentration has been explained on the basis of nonparabolicity of the conduction band. The shift in the Fermi energy, calculated on the basis of energy dependent effective mass, is consistent with the measured shift in the absorption edge.

EXAFS investigation on Sb incorporation effects to electrical transport in SnO2 thin films deposited by sol–gel

“…8 XANES data obtained for thin films evidence the donor nature of Sb 5+ , which rules out hypothesis (ii). Results of reflection in the near infrared 9 show that Drude's theory applies, which means a carrier concentration is as high as 10 20 cm −3 . It assures that there is enough free electrons to lead to a highly degenerate semiconductor.…”

Process Development and Basic Studies of Electrochemically Deposited CdTe-Based Solar Cells; Annual Technical Report, Phase I: May 15, 1998 - May 14, 1999

“…One of the most prominent manifestations of the non-parabolicity is the growth of effective mass with Fermi level. For SnO 2 there were a few attempts to investigate non-parabolicity, but published data are controversial, see, e.g., [19] and [20]. We have studied experimentally the effective mass dependence on the Fermi level position in a wide range of the latter (from 0.25 to 0.75 eV) by means of comparison of the measured Hall and Seebeck coefficients and plasma frequency (see Sec.1.4.3).…”

“…The measured film thicknesses were in a range 500 to 700 nm. Measurements of thermopower provided carrier concentration values from 7x10 19 to 9x10 19 cm -3 . Transparency averaged over a wavelength range 500 to 800 nm was above 80%.…”

Selective Electroless Plating on UV-modified Polymer Film Surface Patterns to Form Copper Mesh as a Transparent Electrode

“…[1][2][3][4][5] Application of transparent electrodes extends to photovoltaics and electromagnetic interference shielding, and ferromagnetic transparent conducting films are being developed for magneto-optic devices. ITO is a commonly used electrode material in touch-panel displays, solar panels, LEDs and other optical devices due to transparency and electrical conductivity.…”