Herein, we report a novel micro-flower lamellar structured α-MoO₃ counter electrode for solid-state fiber-shaped dye–sensitized solar cells. The α-MoO₃ sol-gel precursor, which is Tricarbonyltris (propionitrile) molybdenum, fabricates the α-MoO₃ microstructures by applying Joule heating. Cyclic voltammetry and Tafel polarization results indicate that the α-MoO₃ counter electrode with micro-flower lamellar has higher catalytic activity than pristine Pt. Therefore, based on the efficient reduction reaction of triiodide ions, the novel α-MoO₃ counter electrode with flower-structure could enhance short-circuit current with high power conversion efficiency (PCE). Furthermore, the device with the α-MoO₃ counter electrode provides better device stability and flexibility. Under 500 bending cycles, the PCE of the novel α-MoO₃ counter electrode device maintains more than 90% characteristics, while the bare Pt device reduces to 70%.

在此，我们报道了一种用于固态纤维状染料敏化太阳能电池的新型微花层状结构 α-MoO _{3 对}电极。α-MoO ₃溶胶-凝胶前体，即三羰基三（丙腈）钼，通过焦耳加热制造 α-MoO ₃微结构。循环伏安法和 Tafel 极化结果表明具有微花层状的 α-MoO _{3 对}电极具有比原始 Pt 更高的催化活性。因此，基于三碘离子的高效还原反应，新型花状结构的α-MoO _{3 对}电极可以提高短路电流并具有高功率转换效率（PCE）。此外，具有 α-MoO_{3 对}电极提供更好的器件稳定性和灵活性。在 500 次弯曲循环下，新型 α-MoO _{3 对}电极器件的 PCE保持超过 90% 的特性，而裸 Pt 器件降低到 70%。