Electron lifetime and photoelectrochemical performance of carbon-doped TiO₂ electrodes are presented. Thin films of random disposed ribbon-like structures of C-doped TiO₂ were applied onto FTO substrates using spray and dip-coating techniques. The fabricated electrodes show photocurrent enhancement 20 times greater than compact TiO₂ electrode, and electron lifetimes 2 orders of magnitude lower than compact TiO₂ films. Enhancement in photocurrent suggests a beneficial role of C-doping which compensates the transport properties expected to deteriorate in disordered and thicker architectures. Due to its large surface area, C-doped TiO₂ electrodes can be used as matrix for the deposition of QD sensitizers for photovoltaic applications or as photoanode for photocatalytic applications. Still optimization on film thickness and passivation strategies must be implemented to increase the carrier lifetime.

中文翻译：

---

基于MWCNT模板的TiO 2纳米带的电极的光电化学性能和载流子寿命

给出了碳掺杂TiO ₂电极的电子寿命和光电化学性能。使用喷涂和浸涂技术将随机分布的C掺杂TiO ₂带状结构的薄膜施加到FTO基板上。所制造的电极显示出比紧凑型TiO ₂电极大20倍的光电流增强，并且电子寿命比紧凑型TiO ₂膜低2个数量级。光电流的增强表明C掺杂的有益作用，其补偿了在无序和较厚的结构中预期恶化的传输性质。由于C掺杂的TiO _2的表面积大电极可用作光伏应用中QD增感剂沉积的基质或光催化应用中的光阳极。仍必须对薄膜厚度和钝化策略进行优化，以延长载流子寿命。