Study on the Films Forming Process of Nanosized SnO2 Colloid Particles at the Gas-Liquid Interface

The hydrosol of SnO2 nanoparticles are prepared by the method of colloid chemistry. The free piling up process of nanosized SnO2 colloid particles are investigated at the gas-liquid interface by LB and Brewster Angle Microscopy techniques. The result indicates that solid state monolayer and multilayer of SnO2 nanoparticles can be formed at the gas-liquid interface only by aging the sol in air or compressing it without amphiphiles surfactant.

SnO_2超微粒LB膜初探

用胶体化学法制备了ＳｎＯ＿２超微粒（ｕｌｔｒａｆｉｎｅｐａｒｔｉｃｌｅ，ＵＦＰ）水溶胶和有机溶胶，研究了ＳｎＯ＿２ＵＦＰ在十二烷基苯磺酸钠和硬脂酸作用下的ＬＢ膜成膜性，并对ＳｎＯ＿２和ｓｎＯ＿２ＵＦＰ的气敏特性做了初步的探讨．

Organic/inorganic hybrid solar cells based on SnS/SnO nanocrystals and MDMO-PPV

SnS/SnO heterojunction structured nanocrystals with zigzag rod-like connected morphology were prepared by using a simple two-step method. Bulk heterojunction solar cells were fabricated using the SnS/SnO nanocrystals blended with poly(2-methoxy-5-(3',7'-dimethyloctyloxy)-1,4-phenylene vinylene) (MDMO-PPV) as the active layer. Compared with solar cells using SnS nanoparticles hybridized with MDMO-PPV as the active layer, the SnS/SnO devices showed better performance, with a power conversion efficiency higher by about one order in magnitude.