Synthesis and Study of Electrical Properties of SbTeI

Abstract

Needle shaped SbTeI crystals were obtained by solid state reaction. Electrical resistance was measured in the temperature range of 4 K to 550 K. SbTeI shows a metallic behavior from 4 K to 300 K, and at higher temperature (>300 K), it shows semiconducting behavior. Unlike SbSI, this material shows almost zero resistance around 550 K. It shows a piezoelectric behavior with a capacitance of 717 pF and its carrier density and nobilities are found to be 2.12 × 1016 cm−3 and 1.01 cm2/(V·s), respectively. Crystals of SbTeI are characterized by XRD, SEM, and Raman analysis. Electrical activation energy is found to be 0.52 eV. It is suggested that this material may be studied for its application as a superconductor with Tc higher than room temperature.

Optical, electronic, and elastic properties of some A5B6C7ferroelectrics (A=Sb, Bi; B=S, Se; C=I, Br, Cl): First principle calculation

“…Moreschiniet et al [16] investigated the surface states using the QUANTUM-ESPRESSO package. Dubeyet et al [17] observed that SbTeI showed metallic behavior from 4 K to 300 K and semiconducting behavior at higher temperature (>300 K). Landolt et al [18] investigated the three dimensional bulk states and the two dimensional surface states using the GGA.…”

INVESTIGATION OF ELECTRONIC PROPERTIES OF SbSeI UNDER HIGH PRESSURE BY FIRST PRINCIPLES CALCULATIONS

“…SbSeI was produced from mixture of antimony (Sb), selenium (Se) and iodine (I) elements [11]. Dubey et al (2014), reported that Nitsche and Merz [12] have synthesized materials like SbSI, SbSBr, SbSeBr, SbSeI, SbTeI, BiSCl, BiSBr, BiSI, BiSeCl, and BiSeBr. They studied their photoconducting properties [8].…”

“…Dubey et al (2014), reported that Nitsche and Merz [12] have synthesized materials like SbSI, SbSBr, SbSeBr, SbSeI, SbTeI, BiSCl, BiSBr, BiSI, BiSeCl, and BiSeBr. They studied their photoconducting properties [8]. Many studies have been carried out on the electrical conductivity [13], electronic, thermoelectric [11], microelectronic, and optoelectronic [1] properties, reflectivity and vibrational spectrum [18] of SbSeI.…”