Size control and uniformity of colloidal semiconductor nanocrystals hold profound importance in their optoelectronic properties. However, semiconductor nanocrystal synthesis is in opaque understanding. Traditional growth method depends on kinetic assembly starting from atomic precursors, this can bring out a broad distribution of nanoparticles size, and it is challenging to fabricate 10-20 nm size nanocrystals starting from atomic precursors. In this work, we use small-size nanocrystals as precursors to build larger nanocrystals by the thermodynamic coalescence growth method. The thermal coalescence approach provides more accurate control on semiconductor nanocrystal size and shape.

Thermodynamic coalescence synthesis of colloidal semiconductor nanocrystals

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