Colloidal Synthesis of
Wurtzite Cu<sub>2</sub>ZnSnS<sub>4</sub> Nanorods and Their Perpendicular
Assembly
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Abstract
The quaternary copper chalcogenide Cu<sub>2</sub>ZnSnS<sub>4</sub> is an important emerging material for the development of
low-cost
and sustainable solar cells. Here we report a facile solution synthesis
of stoichiometric Cu<sub>2</sub>ZnSnS<sub>4</sub> in size-controlled
nanorod form (11 nm × 35 nm). The monodisperse nanorods have
a band gap of 1.43 eV and can be assembled into perpendicularly aligned
arrays by controlled evaporation from solution
