Inderscience Publishers

Hierarchical Cu 2 ZnSnS 4 nanostructures synthesised by a simple solvothermal reaction

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Hierarchical Cu
2
ZnSnS
4
nanostructures with various morphologies and sizes have been synthesised successfully using a simple solvothermal reaction. For the control of the size and morphology of Cu
2
ZnSnS
4
, polyvinylpyrrolidone was used as a structure-directing ligand. By changing the molecular weights and concentrations of the polyvinylpyrrolidone ligands, we prepared unique Cu
2
ZnSnS
4
nanostructures ranging from discrete nanoparticle aggregates to nanoflower-like particles. Owing to the unique control of the nanostructures and their ecofriendly nature, the nanoflower-like Cu
2
ZnSnS
4
materials are promising as excellent absorber materials for low-cost solar cells.

Keywords: Cu 2 ZnSnS 4, nanoflower, nanoaggregates, solvothermal, hierarchical nanostructure, polyvinylpyrrolidone

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