Preparation and Properties of Interconnected NiS Nanoparticle Network with Amphiphilic Polymers

Low-dimensional functional nanocomposite with visible light activity is one of hot-spots fields in chemistry, physics and materials according to the demands of new energy and environmental fields. To simulate the process of photosynthesis of nanomaterials, in this study, NiS nanomaterials were synthesized with amphiphilic polymers as soft template. The nanocomposite with integrated multi-functionalities were characterized with several approaches. The photoconductive responses to weak visible light and 808 nm NIR (near infrared) were studied based on interdigital electrodes of Au on flexible PET (polyethylene terephthalate) film substrate with casting method. The results indicated that the resulting NiS nanocomposite is core/shell structure, showing interconnected network, looks like honeycomb, and the nanocomposite with integrated multi-functionalities exhibited photo-switching behaviors, the ratio of On/Off was 2-3 orders of magnitudes, the response and recovery were very rapidly. It would be developed the intelligent nanocomposites with external stimuli responses, light detector to NIR, biomimetic materials, nano-machine controlled by light, environmental fields, and so on.