Optical functional nanomaterials have found many potential applications in health, energy, information and safety area. The development of robust mass-scale nanoparticle synthesis methods is one of key materials challenges in moving towards the optical functional nanomaterials for commercialization and advanced applications. Similar to most chemical processes, the process to synthesize luminescent nanomaterials is a complex combination of a series of unit operations such as mixing of the reactants, critical nuclei, growth of particles, separation and drying. Many studies have focused on the reactions in autoclave reactors and the influence of the molar ratio of reactants, solvent types, surfactants, reaction temperature, reaction time and other related factors. However, other unit operations (i.e., mixing of the reactants), which can more or less affect the final products of luminescent nanomaterials, have been rarely focused on. The process intensification technology based on the rotating packed bed (RPB) reactor, has been proven a powerful tool for scalable production of nanoparticles. In this talk, I will show a viewpoint of a chemical engineer for the nanolight revolution. The recent advances on high-gravity-assisted synthesis of optical functional nanomaterials achieved in our group with be summarized, which shown that the intensified mixing of the precursor in the RPB reactor enabled the scalable and controllable preparation of a variety of nanpmaterials, including rare-earth doped nanophosphors, luminescent organic nanodots and metal oxides nanoparticles with high refractive index. The applications of these nanomaterials for free standing luminescent films, near infrared light detector cards and LED encapsulations optical were demonstrated, respectively. A brief overview of this exciting field, along with some challenges and opportunities, will be also discussed.


Process Intensification for Scalable Production of Optical Functional Nanomaterials and Their Applications

Division / Sponsors: 
Electronic & Photonic Packaging Division (EPPD)

Paper Proceedings: https://asmedigitalcollection.asme.org/InterPACK/InterPACK2020/volume/84041

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