Shining Light on Metal Phosphide Quantum Dots: Understanding Nucleation, Growth, and Photoluminescence Enhancement

Brandi Cossairt^a, Jenny Stein^a, Dylan Gary

^aUniversity of Washington, US, Seattle, United States

Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe September Meeting 2015 (NFM15)

Santiago de Compostela, Spain, 2015 September 6th - 15th

Oral, Dylan Gary, presentation 066
Publication date: 8th June 2015

Covalent metal phosphide nanocrystals represent an important class of materials in a diverse set of applications, including catalysis, solid-state lighting and solar energy capture. Our ability to harness the unique properties of these quantum confined semiconductors relies on our ability to prepare monodisperse samples in high yield and with near unity quantum efficiency. Addressing these challenges will require controlling the solution synthesis of these nanocrystals with atom-level precision. This is particularly challenging for phosphide semiconductors due both to the nature of the reagents used to make the particles and to the covalency of the particles themselves. This work will outline the progress we have made on understanding the precursor conversion reactions, nucleation and growth mechanisms, and approaches to photoluminescence enhancement of metal phosphide quantum dots.

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