Fiber-shaped dye-sensitized solar cell (FDSC) is one of efficient energy generation devices for soft electronics, owing to low-cost and dim-light operable features. The key component of FDSC is photoanode, which is responsible for absorbing incident light and generating charges. Designing TiO₂ structure is significant for fabricating efficient photoanode of FDSC. In this study, it is the first time to fabricate TiO₂ nanoparticle-decorated TiO₂ microcone array (TMC) with holes using simple two-step anodization and dip-coating processes as semiconductor on photoanode of FDSC. Different H₂SO₄ concentrations is used to creating holes on TMC. Holes are generated on TMC in anodization process, but TMC are detached from Ti wire more seriously when higher H₂SO₄ concentration is used. The optimized photoanode of FDSC is prepared using 30 mM H₂SO₄. The optimized FDSC shows solar-to-electricity conversion efficiency (η) of 2.52%, while the FDSC with the pure TMC photoanode only shows η of 1.68%. The better photovoltaic performance of FDSC comprising TiO₂ nanoparticle-decorated TMC with holes photoanode is owing to abundant contacts between TMC and TiO₂ nanoparticles and high surface area of TiO₂ nanoparticles for dye adsorption. The highest collection efficiency of 92.21% is also achieved for the FDSC with the optimized photoanode, analyzed using intensity modulated photocurrent/voltage spectroscopy spectra.

纤维状染料敏化太阳能电池（FDSC）具有低成本和微光可操作的特点，是软电子产品的高效能源产生装置之一。FDSC 的关键部件是光阳极，它负责吸收入射光并产生电荷。设计TiO ₂结构对于制备高效的FDSC光电阳极具有重要意义。在这项研究中，首次使用简单的两步阳极氧化和浸涂工艺在 FDSC 的光电阳极上制造带有孔的TiO ₂纳米颗粒装饰的 TiO ₂微锥阵列（TMC）作为半导体。不同的 H ₂ SO ₄浓度用于在 TMC 上创建孔。在阳极氧化过程中，TMC 上会产生孔洞，但当使用较高的 H ₂ SO ₄浓度时，TMC 会更严重地从 Ti 丝上脱离。FDSC 的优化光电阳极使用 30 mM H ₂ SO ₄制备。优化后的 FDSC 显示出 2.52% 的太阳能到电能转换效率 (η)，而具有纯 TMC 光阳极的 FDSC 仅显示出 1.68% 的 η。FDSC的更好光伏性能包括的TiO ₂纳米颗粒的装饰有孔光电阳极TMC是由于TMC和TiO之间丰富触点_2个的TiO纳米颗粒和高表面积₂用于染料吸附的纳米颗粒。使用强度调制光电流/电压光谱分析，使用优化的光阳极的 FDSC 也实现了 92.21% 的最高收集效率。