Controlling the Surface of Metal Phosphide Quantum Dots: Reaction Chemistry, Growth and Optical Properties
Fabien Delpech a
a Laboratoire de Physique et Chimie des Nano-Objets (LPCNO), University of Toulouse - INSA - CNRS
Proceedings of nanoGe Fall Meeting19 (NGFM19)
#NCFun19. Fundamental Processes in Semiconductor Nanocrystals
Berlin, Germany, 2019 November 3rd - 8th
Organizers: Ivan Infante and Jonathan Owen
Invited Speaker, Fabien Delpech, presentation 446
DOI: https://doi.org/10.29363/nanoge.ngfm.2019.446
Publication date: 18th July 2019

Indium phosphide quantum dots are excellent candidates for replacing the toxic and widely-used cadmium-based QDs. Analyses of InP properties show that in contrast to their CdSe analogues, InP QDs suffer from a high oxophilicity. This makes the synthesis of pristine InP QDs and the control over their surface chemistry and optical properties challenging. In my presentation, I will highlight our work on the influence of oxidation and our efforts to overcome this issue by studying the reaction mechanism. Finally, taking advantage of the lessons learned with InP, I will show that the synthesis of high-quality zinc phosphide QDs displaying significant surface-controlled optical properties can be achieved. In both cases, the reaction chemistry of the ligands and its influence on the nanocrystal surface chemistry will be emphasized.

© Fundació Scito
We use our own and third party cookies for analysing and measuring usage of our website to improve our services. If you continue browsing, we consider accepting its use. You can check our Cookies Policy in which you will also find how to configure your web browser for the use of cookies. More info