Fig. 2From: Mapping the structural, electrical, and optical properties of hydrothermally grown phosphorus-doped ZnO nanorods for optoelectronic device applicationsTop (left) and cross-sectional (right) SEM images of ZnO nanorods corresponding to NH4H2(PO4)2 M ratios 0% (a), 0.05% (b), 0.1% (c), 0.2% (d), 0.5% (e), and 1.0% (f), respectively. Diameter and length of the nanorods increased as functions of NH4H2(PO4)2 M ratio. The enhancement of volumetric features of the nanorods is due to the elevated incorporation of phosphorusBack to article page