Fig. 4: 3D printing of multi-material nanocrystals. | Nature Communications

Fig. 4: 3D printing of multi-material nanocrystals.

From: 3D microprinting of inorganic porous materials by chemical linking-induced solidification of nanocrystals

Fig. 4

a Scheme for sequential deposition of multiple nanocrystal inks for CdSe and Au nanocrystals. b SEM image of sequentially printed Au (vertical) and CdSe (horizontal). EDS mapping image of Au (yellow) (c) and Cd (purple) (d). e Scheme for 3D printing of mixed inks containing CdSe and Au nanocrystals. f SEM image of printed Au-CdSe composite. Inset: HRSEM image of printed Au-CdSe. EDS analysis of Au (yellow) (g) and Cd (purple) (h). i Phase analysis of mixed Au-CdSe nanocrystals using HAADF-STEM (inset) and STEM-EDS mapping of Au (yellow), Cd (purple), and Se (blue). j UV-Vis absorption spectra of thiomolybdate-capped CdSe (black) and Au (blue) nanocrystal ink, and printed Au-CdSe composite (red). k XRD pattern of printed Au-CdSe nanocrystals. The vertical lines indicate the bulk references of CdSe and Au. i N2 physisorption isotherm of printed Au-CdSe nanocrystals. Inset: pore size distribution derived from BJH analysis.

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