Semiconducting oxide glasses of the system (80 − x)Bi2O3–20PbO–xFe2O3, where x = 5, 10 and 15 mol.%, were prepared and investigated for dielectric properties in the frequency range 120–100 KHz and temperature range 300–550 K. Analysis of the electrical properties has been made in the light of small polaron hopping model. The parameters obtained from the fits of the experimental data to this model are reasonable and consistent with glass composition. The conduction is attributed to non-adiabatic hopping of small polaron. The ac conductivity results suggest that the correlated barrier hopping (CBH) is dominant in ac conductivity.
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机译：（80 − x）Bi 2 O 3 –20PbO–xFe 2 O 3 系的半导体氧化物玻璃制备了x = 5、10和15 mol。％的样品，并研究了其在120–100 KHz频率范围和300–550 K温度范围内的介电性能。根据小极化子对电性能进行了分析跳跃模型。从实验数据与该模型的拟合中获得的参数是合理的，并且与玻璃成分一致。传导归因于小极化子的非绝热跳跃。交流电导率结果表明，相关势垒跳跃（CBH）在交流电导率中占主导地位。
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