To develop more energy efficient doped semiconductors, it is essential to synthesize compositionally diverse materials with a well-defined structure. Presented here is a synthetic approach that creates semiconductor nanoparticles (NPs) that dopes the exact same number of guest ions in every particle. This is performed via the cluster seed method, whereby small organometallic compounds catalyze the formation of the NPs. As a result, each NP contains the stoichiometry of the seeding catalyst, which affords enhanced control of the structure and composition of the products. Recent studies have demonstrated the potential to coordinate one dopant directly to another, and thereby “dope the dopants”. We have explored this possibility by synthesizing (MnTe)4 organometallic clusters that seed the growth of ZnCdSe nanoparticles. Preliminary evidence demonstrates that manganese may be bonded to tellurium in the NP products, which opens opportunities for realizing new structure-property relationships in doped semiconductor solid state materials.

Cluster seeded synthesis of doped semiconductor nanomaterials: Can we dope the dopants"?

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.