Periodic fluorine-doped tin oxide inverse opals (FTO IOs) grafted with CdS nanorods (NRs) and CdSe clusters are reported for improved photoelectrochemical (PEC) performance. This hierarchical photoanode is fabricated by a combination of dip-coating, hydrothermal reaction, and chemical bath deposition. The growth of 1D CdS NRs on the periodic walls of 3D FTO IOs forms a unique 3D/1D hierarchical structure, providing a sizeable specific surface area for the loading of CdSe clusters. Significantly, the periodic FTO IOs enable uniform light scattering while the abundant surrounded CdS NRs induce additional random light scattering, combining to give multiple light scattering within the complete hierarchical structure, significantly improving light-harvesting of CdS NRs and CdSe clusters. The high electron collection ability of FTO IOs and the CdS/CdSe heterojunction formation also contribute to the enhanced charge transport and separation. Due to the incorporation of these enhancement strategies in one hierarchical structure, FTO IOs/CdS NRs/CdSe clusters present an improved PEC performance. The photocurrent density of FTO IOs/CdS NRs/CdSe clusters at 1.23 V versus reversible hydrogen electrode reaches 9.2 mA cm-2 , which is 1.43 times greater than that of CdS NRs/CdSe clusters and 3.83 times of CdS NRs.

中文翻译：

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具有出色的光散射能力的周期性FTO IO / CdS NRs / CdSe团簇可改善光电化学性能。

据报道，嫁接了CdS纳米棒（NRs）和CdSe簇的周期性氟掺杂氧化锡反蛋白石（FTO IOs）具有改善的光电化学（PEC）性能。通过浸涂，水热反应和化学浴沉积的组合来制造这种分层的光电阳极。1D CdS NR在3D FTO IO的周期壁上的生长形成了独特的3D / 1D层次结构，为CdSe簇的装载提供了相当大的比表面积。值得注意的是，周期性FTO IO可以实现均匀的光散射，而大量包围的CdS NR则引起额外的随机光散射，结合在一起可以在完整的分层结构内提供多个光散射，从而显着改善CdS NR和CdSe簇的光捕获。FTO IO的高电子收集能力和CdS / CdSe异质结的形成也有助于增强电荷的传输和分离。由于将这些增强策略合并到一个层次结构中，FTO IO / CdS NRs / CdSe群集呈现出更高的PEC性能。FTO IOs / CdS NRs / CdSe团簇相对于可逆氢电极的光电流密度为1.23 V，达到9.2 mA cm-2，比CdS NRs / CdSe团簇的光电流密度高1.43倍，是CdS NRs的3.83倍。