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21 August 2020 Enhancing the photoluminescence of CdSe magic-sized clusters
Andrew Pun, Aniket Mule, David Norris
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Proceedings Volume 11464, Physical Chemistry of Semiconductor Materials and Interfaces XIX; 114640T (2020) https://doi.org/10.1117/12.2567353
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
As the field of semiconducting quantum dots (QDs) continues to mature, the dispersity of nanocrystal sizes present in a synthesized sample is still an obstacle. Because the properties of QDs are size dependent, it is crucial to produce monodisperse QD samples to understand structure-property relations. Magic-sized clusters (MSCs) circumvent the polydispersity seen in QDs, as growth is discrete and limited to only certain sized clusters. In spite of their promise, MSCs remain poorly studied. MSCs typically exhibit broad emission with low photoluminescence quantum yields (PLQY). This presentation will describe our efforts towards CdSe MSCs with sharp, high efficiency PLQY through the growth of a passivating shell.
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Andrew Pun, Aniket Mule, and David Norris "Enhancing the photoluminescence of CdSe magic-sized clusters", Proc. SPIE 11464, Physical Chemistry of Semiconductor Materials and Interfaces XIX, 114640T (21 August 2020); https://doi.org/10.1117/12.2567353
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KEYWORDS
Luminescence
Nanocrystals
Chemistry
Light sources and illumination
Optoelectronics
Quantum dots
Quantum efficiency
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