CdS nanoparticles were successfully synthesized through a simple and "green" route using starch as a capping agent. The nanoparticles were characterized by means of AFM, X-ray diffraction (XRD), UV-vis absorption and photoluminescence spectroscopy. The X-ray diffraction analysis suggested that the CdS nanoparticles were of the cubic structure. The AFM gave an average particle size of approximately 10nm.

The silica-coated ZnS nanocomposites have been synthesized by a seeded-growth procedure in iso-propanol. The results of XRD, HRTEM and UV absorption show that the ZnS nanoparticles can be incorporated in the silica nanospheres without changing the particle size, and the composites are of multi-core structure. UV absorption and emission spectra have been performed to check the character of the composites, which show that the silica shell not only increases the PL intensity, but also greatly improves the anti-oxidation ability and thermal stability.

The ZnO ultrathin films were fabricated from annealing the ZnS nanoparticulate films. By the layer by layer self-assembly technique, we constructed the ZnS nanoparticulate films from alternating layers of ZnS nanoparticles and polydiallyldimethylammonium chloride (PDDA). The result of the emission spectra indicated that PDDA played a role of passivator. Annealing the ZnS/PDDA films at different temperatures led to the changes in absorption. The SEM images showed that the preannealed film was composed of the uniformly distributing domains, while on the annealed film, there exist some holes formed by the burning of the organic components. The EDS confirmed that ZnS could be converted to ZnO at 500℃

A new type of self-assembled film was prepared by alternating deposition of oppositely charged meso-tetra-(4-trimethylaminophenyl) porphyrin nickel iodide (NiTAPPI) and citrate-stabilized CdSe nanoparticles. The stepwise deposition process was monitored by means of UV-vis spectroscopy. The interaction between the porphyrin and CdSe nanoparticles was characterized with UV-vis and fluorescence spectra. The SEM images showed the formation of densely packed two-dimensional array and the conversion of disorder-to-order of CdSe nanoparticles on the quartz substrate modified by PDDA when depositing positively charged NiTAPPI. The self-assembled film placed in ambient air exhibited significant enhancement of fluorescence intensity. The effects of heat treatment and UV-light irradiating on fluorescence properties of the composite films were investigated in details.

酞菁比合物是具有高稳定性的大键共轭体系。目前，酞菁LB膜研究大多采用单体小分子，其气敏特性已有报道。小分子LB膜机械强度及膜结构稳定性差、器件寿命短，无法达到实用阶段，而聚合物LB膜可以提高膜的机械强度，改善膜的性能。酞菁聚硅氧烷是具有优良氧比还原性质和光学性质的新型LB膜材料，膜分子堆集密度高，缺陷少，热和机械稳定性高，Vogel等，将其用作场效应晶体管的栅极膜材料，制作了性能优良的离子传感器。