Role of ZnO in Dc Electrical Conductivity of Lithium Bismuthate Glasses

Table 2

Conductivity at 400°C, activation energy, pre-exponential factor 𝜎_𝑜, and Li ion concentration (𝑁) of present glasses.

Glass name	𝜎 400°C; (Ω·cm)^−1	𝐸𝜎 (eV)	log𝜎𝑜	𝑁; ×10^21/cc
10Z55Bi	5.05×10^−8	1.29	2.51	4.84
10Z60Bi	2.21×10^−8	1.31	2.12	3.46
10Z65Bi	1.45×10^−8	1.32	2.08	2.25
10Z70Bi	7.20×10^−9	1.35	1.20	1.07
15Z50Bi	8.30×10^−8	1.26	3.54	5.02
15Z55Bi	2.98×10^−8	1.33	3.04	3.63
15Z60Bi	1.56×10^−8	1.44	2.57	2.33
15Z65Bi	9.80×10^−9	1.55	3.37	1.13
20Z45Bi	5.73×10^−8	1.13	3.97	5.20
20Z50Bi	1.65×10^−8	1.15	3.18	3.80
20Z55Bi	1.60×10^−8	1.32	1.92	2.45
20Z60Bi	6.12×10^−9	1.45	0.42	1.17
25Z45Bi	3.99×10^−8	1.22	1.95	3.96
25Z50Bi	1.40×10^−8	1.24	1.53	2.55
25Z55Bi	1.02×10^−8	1.28	1.76	1.24
30Zn45Bi	1.12×10^−8	1.23	3.03	2.64
30Zn50Bi	1.10×10^−8	1.25	2.15	1.30
35Z40Bi	1.20×10^−8	1.15	1.71	2.80
35Z45Bi	6.10×10^−8	1.04	0.95	1.34
40Z40Bi	6.55×10^−9	1.11	0.36	1.49