LAUSR

Direct bandgap wurzite (WZ) GaP nanowires (NWs) are projected as a non-nitride solution to the green gap in the LED technology. Here, we report on the growth of 5 μm long pure WZ GaP NWs having a diameter of 200 nm by a two-step core-clad approach. Transmission electron microscopy indicates the absence of any planar defects in the NWs. The low temperature photoluminescence (PL) spectrum of the NWs differs markedly from their non-pure counterparts, previously reported. From the PL spectrum, the bandgap of wurtzite GaP at 10 K is 2.13 eV. This value differs from previously reported values.Direct bandgap wurzite (WZ) GaP nanowires (NWs) are projected as a non-nitride solution to the green gap in the LED technology. Here, we report on the growth of 5 μm long pure WZ GaP NWs having a diameter of 200 nm by a two-step core-clad approach. Transmission electron microscopy indicates the absence of any planar defects in the NWs. The low temperature photoluminescence (PL) spectrum of the NWs differs markedly from their non-pure counterparts, previously reported. From the PL spectrum, the bandgap of wurtzite GaP at 10 K is 2.13 eV. This value differs from previously reported values.