Figure 4From: Indium-doped ZnO nanowires with infrequent growth orientation, rough surfaces and low-density surface trapsPL spectra of ZnO NWs. (a) Low-temperature (14 K) and (b) room-temperature PL spectra of undoped (#1) and In-doped (#2, #3) ZnO NWs. The In-doped NWs show donor bound exciton line I9 in LT-PL spectra, indicating the formation of InZn donors.Back to article page