Two-Dimensional SnSe Nanonetworks: Growth and Evaluation for Li-Ion Battery Applications

• DOI: 10.1021/acsaem.0c00776
• Publication Date: 2020-06-11T17:11:39Z
• Authors: Fionán Davitt; Killian Stokes; Timothy W. Collins; Manuel Roldan-Gut...; Fred Robinson; Hugh Geaney; Subhajit Biswas; Shery L.Y. Chang; Kevin M. Ryan; Gillian Reid; Justin D. Holmes
• Keywords: Orthorhombic crystal system

Engineered two-dimensional (2D) layered materials possess unique physical properties with the potential to improve performance and endurance of future electronic energy devices. Here, we report growth complex 2D nanonetworks crystalline tin selenide (SnSe) via liquid injection chemical vapor deposition using a single-source diselenoether precursor. Potential applications SnSe span wide range technological areas, particularly in The synthesized networks were composed high surface area interconnected junctions one-dimensional (1D) nanowires plane; such nanonetwork structures have not previously been reported. possessed an orthorhombic Pnma 62 crystal structure throughout, individual network branches uniformly orientated along <011> <01–1> directions. width nanowire ranged from 120 250 nm lengths ranging 1 4 μm. 1D had layer thickness 88 ± 10 nm. A mechanism for formation these is proposed based on minimization planes. We also highlight as anode material Li-ion batteries galvanostatic testing showing initial discharge capacity excess 1000 mAh g–1 92% retention after 50 cycles at specific current 100 mA g–1.