Fast preparation of flower-like PbGeO3 microstructures at low-temperature via a microwave-assisted hydrothermal process

Abstract

In this study, novel flower-like PbGeO3 microstructures were successfully synthesized at low-temperature via a facile and rapid microwave-assisted solution-phase approach. The phases and morphologies of the product have been characterized by powder X-ray diffraction (XRD), energy dispersive spectrometry (EDS), selected area electron diffraction (SAED), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). Experimental results revealed that the entire structure of the architecture is composed of a large quantity of individual nanorods with 100–300nm in width and several micrometers in length. Optical test showed that the absorption edge of the PbGeO3 sample was 315nm, corresponding to a bandgap of ~3.94eV.