Nanostructured Bi₂Se₃ Films and Their Thermoelectric Transport Properties

A new strategy to grow thermoelectric nanostructures on a wide variety of substrates is introduced. The synthesis involves the reduction of a selenium precursor to promote nucleation with bismuth ions to produce Bi2Se3 nanostructured films (see picture, scale bar 10 μm) under thermodynamic control. Thermoelectric transport measurements of the nanostructured films were performed from 6 to 300 K.