Understanding and Directing the Structure and Properties of Indium Phosphide Nanocrystals through Chemistry
Brandi Cossairt a
a University of Washington, US, Seattle, United States
Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe Fall Meeting19 (NFM19)
#NCFun19. Fundamental Processes in Semiconductor Nanocrystals
Berlin, Germany, 2019 November 3rd - 8th
Organizers: Ivan Infante and Jonathan Owen
Invited Speaker, Brandi Cossairt, presentation 063
DOI: https://doi.org/10.29363/nanoge.nfm.2019.063
Publication date: 18th July 2019

Indium phosphide is the leading Cd-free quantum dot material for application in photoluminescence down-conversion display and lighting technologies. Our ability to control the structure and interfacial chemistry of InP nanocrystals underpins our ability to elicit desirable function from these materials. Our lab has shown that InP deviates in its properties from conventional II-VI materials in many respects, requiring innovation in synthesis and interfacial design. In particular, structurally deviant, kinetically persistent, and atomically-precise cluster intermediates have proven critical to unravelling the non-classical mechanisms by which InP may grow and have been instrumental in furthering our understanding of the very nature of quantum confined nanostructures. In this talk I will highlight our recent work on understanding and directing the structure and properties of these materials using chemistry, moving towards improved quantum efficiency, color purity, and stability. In addition, efforts at chemically directed mechanisms to achieve novel (hetero)structure types will be presented.

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