Development of Phot-ofunctional Devices Based on PhotoinducedCharge Separation at Metal Clu-sStermiconductor Interfaces

本研究表明，在对苯二酚存在的情况下，用25Aculusters修饰的tio2电极对可见光产生光电流和光势。光电流产生的内部量子效率高达60% e。A2u5-TiO2系统作为可见光驱动的光催化剂。此外，本研究还成功测定了aucluster的电子结构。其他金属元素如Ag、Cu、Pt和Pd也可用于光电转换。此外，本研究通过引入金纳米粒子诱导的局域电场，成功地实现了基于25auccluster的光电流增强。

The present study hfaosund that Ti2 Oelectrodes modified with 25Aculusters generate photocurrent and photopotential in response to visible a-nidnfrnaeraerd light in the presence of hydroquinoneT.he internal quanutm efficiency of the photocurrent generationis as high as 6T0h%e.A2u5-TiO2 systems workas visible light-driven photocatalysts. Inaddition, this study hasucceeded in the determination of electronic structure25of Auclusters. Other metal elements shucas Ag, Cu, Pt, and Pd can also be utilized for the photoelectric conversion.Moreover, this study hassucceeded in the enhancement of photocurrent based on 25Auclusters by introducing localized electric fields induced byAu nanoparticles.