This study reports the performance analysis of an organic dye-sensitized solar cell (DSSC), introducing MnO₂ as an electron transport layer in TiO₂/MnO₂ bilayer assembly. The DSSCs have been fabricated using TiO₂ and TiO₂/MnO₂ layer-by-layer architecture films onto fluorine-doped tin oxide (FTO) glass and sensitized with natural dye extracted from Malvaviscus penduliflorus flower in ethanol medium. The counter electrode was prepared to layer copper powder containing paste onto FTO's conductive side by the doctor's blade method. The optical, morphological, and structural properties of photoanodes were explored via ultraviolet–visible, field emission scanning electron microscopy, and X-ray diffraction analyses. Moreover, dye complexity and thermostability of dyes were characterized via Fourier-transform infrared spectroscopy and thermogravimetric analyses. The iodide/triiodide (i.e., I⁻/I₃⁻) redox couple of electrolyte solution was employed as a charge transport medium between the electrodes. Finally, photoanode and counter electrode sandwiches were assembled to envisage the photovoltaic performance potential under simulated AM 1.5G solar illumination using 100 mW cm^–2 light intensity. The as-fabricated DSSC comprising TiO₂/MnO₂ bilayer assembly exhibited 6.02 mA cm^–2 short circuit current density (J_sc), 0.38 V open-circuit voltage (V_oc), 40.38% fill factor, and 0.92% conversion efficiency, which is about 200% higher compared to the assembly devoid of MnO₂ layer.

这项研究报告了有机染料敏化太阳能电池（DSSC）的性能分析，在TiO ₂ / MnO ₂双层组件中引入了MnO ₂作为电子传输层。DSSC是使用TiO ₂和TiO ₂ / MnO ₂的层状结构膜在氟掺杂的氧化锡（FTO）玻璃上制成的，并用从戊糖锦葵中提取的天然染料敏化而成。花在乙醇培养基中。通过刮刀法制备了将对电极膏层覆在FTO导电面上的含铜粉的对电极。通过紫外可见光，场发射扫描电子显微镜和X射线衍射分析探索了光阳极的光学，形态和结构特性。此外，通过傅立叶变换红外光谱和热重分析来表征染料的复杂性和热稳定性。的碘化物/三碘化物（即，我^- /我₃ ^-电解质溶液的氧化还原对被用作电极之间的电荷传输介质。最后，组装光阳极和对电极三明治，以模拟在模拟AM 1.5G太阳光照下使用100 mW cm ^-2的光强度时的光伏性能潜力。包含TiO ₂ / MnO ₂双层组件的已组装DSSC表现出6.02 mA cm ^-2的短路电流密度（J _sc），0.38 V的开路电压（V _oc），40.38％的填充系数和0.92％的转换效率，与没有MnO ₂层的组件相比，它大约高200％。