Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.494
Publication date: 16th December 2024
I will describe the synthesis of colloidal GaP and InP nanocrystals in organic surfactant solution. Novel precursor conversion reactivity can be used to control the formation of solutes at a desired reaction temperature and to govern their concentration structure. That approach provides large (10-20 nm), highly crystalline GaP under mild conditions using convetional surfactant media. The high quality of the products is confirmed by their powder diffraction and Raman spectra which are narrower than previous reports under such conditions. The importance of the reaction temperature, solute composition, and the conversion reactivity to the final nanocrystal product will be discussed. The results will be used to highlight the central role of crystal growth in size and polydispersity control mechanisms. Moreover, the results highlight the essential role of precursor reactivity on the reproducibility of the synthesis and the value of carefully designing and tailoring reagents that afford control over that reactivity.
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