Hollow heterogeneous CuSe@MnSe for high-performance printed flexible supercapacitor

The hollow heterogeneous composite of CuSe@MnSe with high capacity is successfully synthesized by using CuSe as support for α-MnSe nanoparticles. A hybrid supercapacitor is fabricated successfully using CuSe@MnSe and active carbon as the positive and negative electrode materials through screen printing. The high energy density and power density of the printed flexible supercapacitors demonstrate appreciable application in storage.