Extended Data Fig. 1: Characterizations of CdTe quantum dots (QDs).
From: Maximizing light-driven CO2 and N2 fixation efficiency in quantum dot–bacteria hybrids
a, HAADF-STEM image of aggregated QDs and the corresponding EDS mapping in the same region for (b) cadmium (Cd) and (c) tellurium (Te). d, HRTEM image of individual CdTe QDs. e, Magnified HRTEM image of the highlighted region in d. f, the corresponding Fourier transform results indicate a lattice spacing of 0.21 nm, agree with the (220) plane of the cubic phase. g, Ultraviolet-visible spectrum (black) overlayed with the emission spectrum (yellow) of CdTe QDs. h, The measurement of dynamic light scattering along with the corresponding size distribution. The experiment of electron microscopy has been repeated independently for more than 3 times with similar results. Scale bars are 30 nm in a-c, 10 nm in d, and 1 nm in e.
