Optical and electrical characteristics of (LiCl) x (P2O5)1 − x glass

Abstract

Homogeneous (LiCl) x (P 2 O 5 ) 1 − x glasses were synthesised using a melt-quenching method for x=0.1-0.6 in the interval of 0.05. The amorphous structure of the samples was evident by the X-ray diffraction spectrum. The short range structures of the binary phosphate samples were examined by Fourier transform infrared spectroscopy, whilst the density of the samples was measured as supportive data for the investigations. The results of refractive indices as measured using an ellipsometer reveal the homogeneity of samples and was found to depend on the glass composition. The electrical properties of the glasses were investigated by ac impedance spectroscopy from 10 mHz to 1 MHz for temperatures ranging from room temperature to 573 K. An estimation of the bulk resistivity was obtained by taking the intercepts on the real axis at low frequencies of the complex impedance plot. The dc conductivities derived from the reciprocal of resistivity values were found to obey the Arrhenius relationship, and its activation energy shows a decreasing trend with the increase in LiCl content in the glass. Lastly, an equivalent circuits consisting of real and complex capacitors is proposed to describe the dielectric response of the glass.

Investigation of structural, thermal, and electrical characteristics of zirconium-doped lithium-phosphate glasses

“…Several studies [ [4] , [5] , [6] , [7] ] have shown that Li 2 O–P 2 O 5 glass is an excellent fast-conducting glass for Li + ions. One of the strategies embraced for augmenting conductivity involves introducing a doping salt, such as a metal halide (LiX, where X = Cl–, Br–, I–), into these glass compositions [ [8] , [9] , [10] ]. However, their poor thermal stability and mechanical properties limit their usefulness [ 11 , 12 ] because the addition of Li 2 O breaks the P–O–P bonds and allows the depolymerization of the glassy network.…”

Electrical and dielectric analysis of lithium chloride mixed sodium and lithium phosphate glasses

“…In the past few decades, many phosphate glassy systems containing a metal oxide (Li, Na, Ag) glass modifier and a doping salt (LiCl) were investigated . The effect of the addition of a salt was studied for the first time in 1966 by Otto et al, who proposed an oxide glass which showed a remarkably high Li + ion conductivity, caused by the dissolution of Li 2 SO 4 and LiCl.…”

“…3 In the past few decades, many phosphate glassy systems containing a metal oxide (Li, Na, Ag) glass modifier and a doping salt (LiCl) were investigated. [4][5][6] The effect of the addition of a salt was studied for the first time in 1966 by Otto et al, 7 who proposed an oxide glass which showed a remarkably high Li + ion conductivity, caused by the dissolution of Li 2 SO 4 and LiCl. These type of glasses, where a metal halide is mixed with a glass former, have shown further interest due to their potential application as inorganic vitreous electrolytes with high conductivity.…”