Fig. 1. Characterization of CsPbBr3 QDs.
a, b Transmission electron microscopy (TEM) image and corresponding size distribution (lower right inset of panel a), the geometrical structure (upper right inset of panel a), c high-resolution TEM (HRTEM) image, d X-ray diffraction (XRD) pattern, and e UV–vis absorption (black line) and PL emission (red line). Inset shows the photograph of CsPbBr3 QDs colloidal solutions in hexane under UV light of 365 nm.