Preparation Of One-dimensional Micro-nano Structure Of Perylene Derivatives And Their Properties

Organic semiconductors materials have received widely attentions in molecular electronics due totheir inherent advantages such as light weight, low cost, mechanical flexibility and tunable functionality bymolecular design. Organic1-D nanomaterials based on low-molecular-weight semiconducting organiccompounds are of interest because they possess unique properties for use in electronic, optoelectronic, andphotonic nanodevices. Here, we focus on the controllable growth of perylene derivatives, optoelectronicdevices and their gas sensitivities associated performance, exploring the structure-property relationship andtheir potential applications.1. We introduced the present research backgrounds of organic semiconductor materials and N-type ofperylene derivatives application in electronic devices, and their status of single crystal preparationtechnology and built a photoelectricity and gas sensing function devices. Therefore, we deduced theresearch objectives and the main research contents in our future works.2. We described the synthesis of excellent crystal perylene derivatives （PTCDA, PTCDI, PTCDI-Cl₄）micro-nanostructure materials by the physical vapor deposition （PVD） technique, analysis of the gas phaseself-assembled rely on different dominant interactions are responsible for the different forms of organicmicro-nanocrystal structure formation is temperature-activated process. The UV detectors based deviceswere fabricated by aligning single PTCDA and PTCDI nanowire across paired Au electrodes usingdielectrophoresis.and discusses the different diameter, light intensity on the optical current effect,discovered the different material device response and recovery time is different.3. We report the preparation of3,4,9,10-perylenetetracarboxylic dianhydride （PTCDA）micro/nanotubes （M/NTs） by a simple physical vapor deposition （PVD） process, and it was found thattubular structures with a diameter range from300nm to5μm and lengths up to tens of micrometers wereobtained on a glass substrate at a deposition temperature of350-400°C. Detailed studies revealed thatPTCDA M/NTs were formed via a curling and seaming of a2-D lamellar structure constructed by virtue ofthe cooperation of some noncovalent interactions such as π–π interaction and H-bond, which was atemperature-activated process. Devices based on single PTCDA microtubes with different diameters exhibited resistance decreased by2orders of magnitude in reducing hydrazine vapor （even for such a lowconcentration of5ppm）. Such a successful application of PVD process to simple organic molecules andhighly efficient performance in devices are expected to provide great opportunities for the formation ofdiverse functional organic hollow nanostructures.4. Based on perylene derivative gas phase control of preparation conditions of exploration, consideringour studies on the organic semiconductor optoelectronic applications, we try to PTCDA array andZnO/PTCDA composite material preparation, and composite materials were studied by light absorption, inthe hope that the excellent performance of the photoelectricity parts have potential applications.