Fig. 1: Phase-selective templated synthesis of lead sulfochloride NCs. | Nature Communications

Fig. 1: Phase-selective templated synthesis of lead sulfochloride NCs.

From: Halide perovskites as disposable epitaxial templates for the phase-selective synthesis of lead sulfochloride nanocrystals

Fig. 1

A solution of PbCl2 reacts with sulfur dissolved in 1-octadecene (S-ODE) to form Pb3S2Cl2 NCs. When reacted with Cs-oleate (R-COO-Cs+) it produces instead CsPbCl3 nanoclusters, that can be further reacted with Pb-oleate, S-ODE, and an alkyl thiol (R-SH) to form Pb4S3Cl2/CsPbCl3 heterostructures. The CsPbCl3 domain can be then selectively etched by the sequential addition of oleylamine (R-NH2), dimethyl formamide (DMF), and oleic acid (R-COOH), yielding colloidally stable Pb4S3Cl2 NCs that could not be obtained by direct synthesis. Atoms color code: Cs = cyan; Pb = gray; S = yellow; Cl = green.

Back to article page