Influence of CuO and Al2O3 addition on the optical properties of sodium zinc phosphate glass absorption filters

IMPACT OF CuO CONTENT ON THE DIELECTRIC PROPERTIES OF ZINC SODIUM PHOSPHATE GLASSES CONTAINING Al2O3

“…The XRD analysis has been carried out to confirm the amorphous nature of these glasses [7]. Five pieces (one of each sample) were cut and finely polished to become like-slabs with flat faces to be suitable for the dielectric measurements.…”

“…Therefore, the addition of CuO causes an increase in the polaron transfer and enhancing the conductivity. Moreover, the reduction of the interionic distance of copper ions with increasing CuO content [7], makes the electron hopping to be easier to occur. On the other hand, ionic conduction is known to be effective in glasses containing mobile ions, e.g.…”

Optical spectroscopic study of cobalt oxide doped boron glass and its ion effect on optical properties

“…On the other hand, the reflectance (R) was numerated by using the following equation, [40][41][42] A + R+ T = 1; So R= 1 -A -T…”

“…The extinction coefficient (k) was calculated by using the following relation and the values are shown in Fig.8 [25,[40][41][42][43] K = αλ/4π (9) Where α is absorption coefficient, λ is wavelength.…”

“…The real and imaginary parts of the dielectric constants (ɛ̀ and ɛ̀̀̀ ̀) were calculated by using the following relations [25,[40][41][42][43] ɛ̀ = n2 -K2 (10)…”