Synthesis and shape control of perylene nanocrystal

• 1、College of Metallurgy and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083
• 2、 State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002
• 3、 Key Laboratory of design and assembly of functional nanostructures, Chinese Academy of Sciences, Fuzhou, 350002

Abstract：As a typical n-type organic semiconductor, Perylene and its derivative has drawn much attention due to its high quantum yield and stability. Reprecipitation method a typical route to synthesize perylene nanoparticles which is widely used. However, few systematic research in preparation of shape- and size-controlled perylene nanoparticles is reported. In this paper, based on reprecipitation method, perylene nanoparticles with a variety of shapes, such as nanorods, nanosquares, nanorods, are prepared by controlling the experiment condition such as temperature, the volume of perylene solution, the aging route and surfactant. The possible growth mechanism of the perylene nanoparticles with different shapes has been analyzed. That is the nucleation speed and growth speed determine the shape of nanocrystal, and the selective adsorption and templating of CTAB promote the formation of nanorods. Meanwhile, the UV-vis absorption spectra of each nanostructure are carried out, which indicates the optical properties of perylene are size- and shape-dependent.

Keywords： Organic chemistry Organic small molecules Morphology control