Photoanodes,它在 photoelectrochemical (PEC ) 被使用切开的水,被显示了在一个 PEC biosensing 平台的构造适用。这被用一个适当测试分子的氧化代替水氧化认识到。这里,我们表明了采用由为谷胱甘肽(GSH ) 的自我动力的 PEC bioanalysis 与 plasmonic 金牌 nanoparticles (Au NPs@ZnO NR ) 装饰在的锌氧化物 nanorods 数组组成的 photoanodes 的可行性缓冲磷酸盐盐(PBS ) 在 0 V 对 Ag/AgCl 的一个应用偏爱潜力。因为 Au/ZnO 接口的介绍,这 heterostructure 展出了提高的 PEC 性质。在可见轻照明下面,从在 Au NP 表面的表面电浆子回声(SPR ) 的热电子被注入邻近的 ZnO 并且随后开车到光阴极。在下面紫外(紫外) 轻照明,在 ZnO 的 photogenerated 电子趋于由于逐步的精力乐队结构和在 ZnO/ 电解质接口弯曲的向上的精力乐队转到做氟的符号的听氧化物。这些结果显示 plasmonic 金属 / 半导体 heterostructure photoanodes 为自我动力的 PEC bioanalysis 应用和另外的光电的烽火的扩大的地有大潜力。
Photoanodes, which are used in photoelectrochemical (PEC) water splitting, have been shown to be applicable in the construction of a PEC biosensing platform. This was realized by replacing water oxidization with oxidation of an appropriate test molecule. Here, we have demonstrated the feasibility of adopting photoanodes consisting of zinc oxide nanorods arrays decorated with plasmonic gold nanoparticles (Au NPs@ZnO NRs) for the self-powered PEC bioanalysis of glutathione (GSH) in phosphate-buffered saline (PBS) at an applied bias potential of 0 V vs. Ag/AgCl. This heterostructure exhibited enhanced PEC properties because of the introduction of the Au/ZnO interface. Under visible light illumination, hot electrons from surface-plasmon resonance (SPR) at the Au NP surface were injected into the adjacent ZnO and subsequently driven to the photocathode. Under ultraviolet (UV) light illumination, the photogenerated electrons in ZnO tended to transfer to the fluorine-doped tin oxide due to the step-wise energy band structure and the upward energy band bending at the ZnO/ electrolyte interface. These results indicate that plasmonic metal/semiconductor heterostructure photoanodes have great potential for self-powered PEC bioanalysis applications and extended field of other photovoltaic beacons.