Gao Li-Hua, Chen Xi, Lu Shan, Wang Ke-Zhi
J Nanosci Nanotechnol. 2014 May;14(5):3808-12. doi: 10.1166/jnn.2014.7962.
A new electrostatically self-assembled film has been successfully prepared on quartz and indium-tin-oxide (ITO) coated glass substrates by alternating adsorption of a wheel-shaped polyoxomolybdate {Mo154} and a hemicyanine of (E)-1,1'-methylenebis(4-(4-(dimethylamino)styryl)pyridinium) bromide (H1). The UV-visible spectra demonstrated that the film was uniform, reproducible, and the H1 in the film forms the J-aggregation. Photoelectrochemical investigations showed that the films can generate stable cathodic photocurrent, and the cathodic photocurrent density of three-layer film was 5.1 microA/cm2 while irradiated with 100 mW/cm2 polychromatic light of 730 nm > lambda > 325 nm at an applied potential of -0.3 V versus saturated calomel electrode.
通过交替吸附轮状聚钼酸盐{Mo154}和(E)-1,1'-亚甲基双(4-(4-(二甲基氨基)苯乙烯基)吡啶鎓)溴化物(H1)的半菁，已成功在石英和氧化铟锡(ITO)涂层玻璃基板上制备出一种新型静电自组装膜。紫外可见光谱表明该膜均匀、可重现，且膜中的H1形成了J-聚集体。光电化学研究表明，该膜能产生稳定的阴极光电流，在相对于饱和甘汞电极施加-0.3 V电位时，用波长范围为730 nm > λ > 325 nm、强度为100 mW/cm²的多色光照射时，三层膜的阴极光电流密度为5.1 μA/cm²。
