The ionic conductivity enhancement in solid polymer electrolytes due to introduction of polyaniline (PANI) conducting polymer is demonstrated using poly(ethylene oxide) (PEO) based solid polymer electrolyte comprising tertapropylamonium iodide (Pr₄NI) and iodine (I₂). The electrolyte with optimized composition has been characterized by ionic conductivity measurements, DC polarization test, Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Differential Scanning Calorimetry (DSC). About eight-fold increase in the ionic conductivity from 9.33 × 10⁻⁶ Scm⁻¹ to 8.61 × 10⁻⁵ Scm⁻¹ at room temperature was obtained by the addition of 1.5 wt% of PANI to the PEO solid polymer host. FTIR measurements suggest that Pr₄N⁺ cations are able to coordinate not only with oxygen atoms of PEO, but also with nitrogen atoms of the PANI polymer effectively immobilizing or “trapping” the bulky Pr₄N⁺ cations and promoting ionic dissociation. DSC studies show that PANI, also acting as a plasticizer, reduces the crystallinity of PEO and lower it's melting temperature. The DC polarization tests confirmed the increased iodide ion conductivity evidently mediated by PANI due to the combined effect of cation trapping and plasticizing. Solid state dye sensitized solar cells fabricated with optimized electrolyte composition incorporating PANI exhibited the highest energy conversion efficiency of 5.01% compared to 3.52% for the DSSC without PANI.

使用包含碘化叔丙铵（Pr ₄ NI）和碘（I ₂）的基于聚环氧乙烷（PEO）的固体聚合物电解质，证明了由于引入了聚苯胺（PANI）导电聚合物而导致的固体聚合物电解质中离子电导率的提高。通过离子电导率测量，直流极化测试，傅立叶变换红外光谱（FTIR），扫描电子显微镜（SEM）和差示扫描量热法（DSC）对具有最佳成分的电解质进行了表征。离子电导率从9.33 ×  10 ^-6 Scm ^-1增加到8.61  ×  10 ^-5 Scm ^-1大约八倍 通过向PEO固体聚合物主体中添加1.5wt％的PANI获得室温下的室温。FTIR测量表明，Pr ₄ N ⁺阳离子不仅能与PEO的氧原子配位，而且还能与PANI聚合物的氮原子配位，从而有效地固定或“捕获”庞大的Pr ₄ N ⁺阳离子并促进离子离解。DSC研究表明，PANI还可作为增塑剂，降低PEO的结晶度并降低其熔融温度。DC极化测试证实，由于阳离子捕获和塑化的共同作用，PANI明显介导了碘离子电导率的提高。用结合了PANI的优化电解质成分制成的固态染料敏化太阳能电池，其最高能量转换效率为5.01％，而不含PANI的DSSC的能量转换效率为3.52％。