Enhanced Multiexciton Emission Quantum Yields in Nonblinking Interlinked Nanocrystals

Roy, P and Pandey, A (2024) Enhanced Multiexciton Emission Quantum Yields in Nonblinking Interlinked Nanocrystals. In: Journal of Physical Chemistry C, 128 (7). pp. 2948-2952.

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Abstract

Semiconductor nanocrystals, although well recognized for their robustness as biomarkers, nonetheless suffer from certain limitations relating to their cyclability and intermittency. For example, fluorescence intermittency causes single nanocrystals to fluctuate between light and dark states. Likewise, poor multiexciton quantum yields limit the maximum luminosity that a single nanocrystal emitter may achieve. Here, we describe a novel CdTeSSe nanocrystal that shows high photostability and nonblinking behavior along with giant biexciton quantum yields of 35 ± 5.1. The role of the unusual geometry in giving rise to these nanocrystal properties is discussed. © 2024 American Chemical Society.

Item Type:	Journal Article
Publication:	Journal of Physical Chemistry C
Publisher:	American Chemical Society
Additional Information:	The copyright for this article belongs to the American Chemical Society.
Keywords:	Cadmium compounds; Quantum yield; Selenium compounds; Tellurium compounds, Cyclability; Dark state; Emission quantum yield; Fluorescence intermittency; Intermittency; Multiexcitons; Photo-stability; Semiconductor nanocrystals; Single nanocrystals; Yield limit, Nanocrystals
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	10 Apr 2024 05:17
Last Modified:	10 Apr 2024 05:17
URI:	https://eprints.iisc.ac.in/id/eprint/84678

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