Wavelength tunable electroluminescence from randomly assembled n-CdS _x Se _1−x nanowires/p ⁺ -SiC heterojunction

Visible electroluminescence (EL) with tunable wavelength has been observed at room temperature from randomly assembled n-CdS(x)Se(1-x) nanowires grown on a p(+)-SiC substrate by the vapor transport technique. The dominant emission peaks can be tuned from ∼720 to ∼520 nm by varying the composition of the alloy nanowires.