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/Al2O3) platelets in acrylamide aqueous solution in the assistance of magnetic field, then fix the oriented structure via gelation. The aligned Fe/Al2O3 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.

Automated summary

Hybrid anisotropic hydrogel is created by dispersing carbon quantum dots and ultrahigh magnetic nanoparticle-coated alumina (Fe/Al2O3) platelets in acrylamide aqueous solution with the assistance of a magnetic field, and then fixing the oriented structure through gelation. The aligned Fe/Al2O3 platelets lead to the formation of anisotropic structure, providing mechanical and fluorescent anisotropy to the hydrogels. White-light emission is achieved by adjusting the weight ratio of yellow-emitting ZnO QDs and blue-emitting N,S-CDs. This approach not only enriches the field of mechanical/fluorescent dual anisotropic soft materials, but also holds significant potential in organic light-emitting diodes, nonlinear optics, and field effect transistors.