The polypyrrole is a conducting polymer prepared by chemical route. The diffuse reflectance measured in the wavelength range (300–2500 nm) permitted the calculation of the refractive index (n), extinction coefficient (k), dissipation factor (tan δ) and relaxation time (τ). The optical band gap (E _g) was evaluated from the dielectric and conductivity properties, and its value (1.01 eV) was confirmed by using the Tauc relation.

中文翻译：

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用于确定“聚吡咯”间隙状态的光学和介电研究

聚吡咯是通过化学途径制备的导电聚合物。的波长范围内（300-2500纳米）测量的漫反射率所允许的折射率（计算Ñ），消光系数（ķ），耗散因数（黄褐色 δ）和松弛时间（τ）。光学带隙 ( E _g ) 由介电和导电性能评估，其值 (1.01 eV) 通过使用 Tauc 关系确定。