We demonstrated a new strategy to construct high-performance micro-SCs based on microfluidic-oriented core–sheath structured polyaniline nanorod arrays/graphene fibers.

Photonic crystals (PCs) have been widely applied in optical, energy,a nd biological fields owingt ot heir periodic crystal structure.H owever,t he major challenges are easy cracking and poor structural color,s eriously hindering their practical applications.Now,hydrophobic poly(tert-butyl acrylate) (P(t-BA)) PCs have been developed with relatively lower glass transition temperature (T g ), large crack-free area, excellent hydrophobic properties,a nd brilliant structure color. This method based on hydrophobic groups (tertiary butyl groups) provides ar eference for designing new kinds of PCs via the monomers with relatively lower T g .Moreover,t he P(t-BA)P Cs film were applied as the photoluminescence (PL) enhanced film to enhance the PL intensity of CdSe@ZnS QDs by 10-fold in aliquid-crystal display( LCD) device.T he newtype hydrophobic force assembled PCs may open an innovative avenue toward new-generation energy-saving devices.

Coordination between Ag-loaded polystyrene-co-dendrimer microspheres enables the construction of large-area crack-free photonic crystal films and invisible patterned photonic displays.

A highly sensitive mechanochromic photonic gel based on carbon-encapsulated Fe3O4 nanoparticles embedded into N-hydroxymethyl acrylamide and N-vinylcaprolactam copolymer was fabricated toward fast-responsive fingerprinting.

Graphene oxide (GO) has aroused worldwide interests in recent years because of perfect solubility, easy processing nature, and intriguing mechanical properties. However, safety risk, high pollution, and low synthesis rate involved in the synthesis process of GO limit its practical applications. In this work, we propose a new strategy to efficiently produce the high-quality GO based on microfluidic synthesis technology. By use of the H2SO4/H3PO4/graphite hybrid microdroplet as the microreactor, the exfoliation and oxidation of graphite can be confined in a microscale reaction environment, indicating the enhanced reaction kinetics, high reaction rate (reaction time of 2 h), and minimum safety risk. Notably, the microfluidic synthesis of GO has nearly the same chemical structure when compared with the Hummers method. More importantly, the rGO fibers processed from GO solutions possess a high specific capacitance of 716.2 mF cm–2 (23.86 F g–1) and an energy density of 14.5 μWh cm–2 (0.53 Wh kg–1), which can enduringly power a smart watch. These versatile strategies open a promising access to the fast synthesis and commercial applications of graphene.