Photoelectron transfer in nanocomposite films, layer by layer self-assembled from polycations and anionic semiconductors
作者： Janos J. Fendler
DOI: 10.1016/S0167-2991(97)81106-8
关键词: Cadmium sulfide 、 Lead sulfide 、 Materials science 、 Cyclic voltammetry 、 Transmission electron microscopy 、 Layer by layer 、 Absorption (chemistry) 、 Titanium dioxide 、 Nanocomposite 、 Inorganic chemistry
摘要: Publisher Summary This chapter discusses the results, obtained in laboratories, on layer-by-layer self-assembly of ordered nanostructured films, composed cationic poly(diallylmethylammonium chloride), phosphorus (P), and negatively charged solid particles, onto a variety substrates. Montmorillonite clay platelets (M), thiol, or sodium hexamethaphosphate-stabilized cadmium sulfide (CdS), lead (PbS), polyacrylic acid-stabilized titanium dioxide (TiO2) were employed as anionic particles. The self-assembled films characterized, by cyclic voltammetry, absorption emission surface plasmon spectroscopy, transmission electron microscopy, diffraction measurements. structures shown to depend markedly potential that was applied during sequence, which platelets, CdS, TiO2 particles layered. Furthermore, photocurrent measurements composite indicated marked dependence CdS Self-assembly surfactant-stabilized PbS, nanoparticles positive P greatly facilitated, strong electrostatic interactions.
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