SnO₂ nanoarrays for energy storage and conversion

The term SnO₂ nanoarrays refers to the alignments of SnO₂ nanounits on different substrates, whose design and synthesis have attracted considerable attention due to their range of promising applications. We summarize various synthetic strategies towards the dimension-, size- and shape-controlled synthesis of SnO₂ nanoarrays on various substrates, providing the rational understanding on their on-purpose design through the control of growth parameters. The properties of SnO₂ nanoarrays related to their energy storage and conversion applications as anode materials for lithium ion batteries and photoanodes of dye-sensitized solar cells are reviewed.