Fig. 2: HAADF-STEM characterization and EDS mapping of PbxCd1−xSe QD gels.
From: Atomically dispersed Pb ionic sites in PbCdSe quantum dot gels enhance room-temperature NO2 sensing
a–d HAADF-STEM images and EDS elemental maps of a Pb0.04Cd0.96Se, b Pb0.09Cd0.91Se, c Pb0.17Cd0.83Se, and d Pb0.40Cd0.60Se QD gels. e Intensity profiles of Pb0.17Cd0.83Se gel in the marked area 1 and 2 in panel c. f Low- and high-magnification HAADF-STEM images of a high-contrast region of Pb0.17Cd0.83Se QD gel and the corresponding FFT images from the marked regions.
