The construction of white-light-emitting anisotropic hydrogel

In this work, hybrid anisotropic hydrogel is developed through dispersing carbon quantum dots , ultrahigh magnetic nanoparticle-coated alumina (Fe/Al 2 O 3 ) platelets in acrylamide aqueous solution in the assistance of magnetic field, then fix the oriented structure via gelation . The aligned Fe/Al 2 O 3 platelets result in formation of anisotropic structure, thus endows the hydrogels mechanical anisotropy and fluorescent anisotropy. White-light emission is obtained via varying the weight ratio of yellow-emitting ZnO QDs and blue-emitting N,S-CDs. This strategy not only enriches the mechanical/fluorescent dual anisotropic soft materials, but also have great potential application in the fields of organic light-emitting diodes, nonlinear optics and field effect transistors .