View article

Two-dimensional (2D) heterostructure electrode materials have recently attracted great interest in supercapacitors because of their unique features. Herein, we report molybdenum disulfide (MoS₂) intercalated Siloxene heterostructure based all-solid-state symmetric supercapacitor (SSC) for an energy harvester-storage system. The interlaying spacing of the Siloxene sheets in the heterostructure is expanded due to the MoS₂ intercalation and the synergistic behaviour, which are fruitful for the higher charge storage performance of the fabricated SSC device. The density functional theory calculation results prove the enhanced conductivity of the Siloxene@MoS₂ heterostructure. The fabricated Siloxene@MoS₂ device exhibits a device capacitance of 133.5 F g^–1 with an energy density of 31.3 Wh kg^–1. Besides, the supercapacitor device has excellent cyclic stability of 89.3% after 15,000 cycles. The energy stored …