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Bandgap engineering is an important strategy for tailoring the optical and electronic properties of semiconductor nanocrystals. This work describes the first solution proton alloying process for tuning the bandgap energy of ternary sulfide nanocrystals at room temperature. The proposed strategy circumvents the use of toxic heavy metal ions, while maintaining the size and morphology of the nanocrystals,...
Uniform single‐crystalline quaternary sulphide nanoring photocatalysts are synthesized via the copper‐ion‐induced Kirkendall effect and is followed by a cation exchange reaction. The obtained Cu2+‐doped ZnIn2S4 nanorings show highly preserved morphology, and demonstrate high visible‐light‐driven photocatalytic activity for H2 evolution in water splitting.
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