Size and Morphology Control of Organic nanocrystals

本研究发现，再沉淀法中有机纳米晶体的生成动力学遵循经典的成核理论。在此方法中，过饱和比是决定纳米颗粒大小的关键因素。利用这些知识，在颜料纳米晶体方面，也可以制造出尺寸约为15纳米的精细尺寸的颜料纳米晶体。结果表明，再沉淀法制备的纳米晶体滤色片的对比度比传统工艺制备的颜料晶体的对比度大几倍。

In this study, it was found that the kinetics on generation of the organic nanocrystals in the reprecipitation method follow a classic nucleation theory. And then, supersaturation ratio is a critical factor determining the nanoparticle size in the the method. Using these knowledges, regarding the pigment nanocrystals, fabrication of the fine sized pigments nanocrystals with around 15 nm in size could also be achieved. Tn addition, it was shown that the contrast ratio of color filter of nanocrystals prepared by the reprecipitation method gave several times greate than that of pigment crystals fabricated by the conventional technique.