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Tellurium is a heavy chemical element exhibiting chirality, anisotropy, and strong spin-orbit coupling; conse quently, displaying a huge potential in quantum hardware technologies. In this article, tellurium quantum dots, with sizes around 19 ± 3 nm and energy bandgap around 2.4 eV, were successfully synthesized by pulsed laser ablation in liquids (PLAL). The synthesis was performed by using a nanosecond Nd:YAG laser emitting at 1064 nm and pulsing the laser beam at 1 kHz. Toluene (C6H5CH3) was used as a solvent to avoid oxidation of the dots. Non-polarized and polarized Raman spectroscopy as well as X-Ray diffraction were performed on the dots to study their quantum confinement and anisotropy. Finally, strongly confined tellurium quantum dots were obtained; and, their properties underline their potential as quantum light sources.
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Self-optimizing parallel millifluidic reactor for scaling nanoparticle synthesis
We developed a 16-channel millifluidic reactor that uses a multiphase gas–liquid flow to continuously produce colloidal CsPbBr 3 quantum dots with a throughtput of ∼1 L h −1 . The optical properties of the product were monitored, and the reaction conditions were optimized in real time based on the in situ photoluminescence characteristics of the quantum dots.
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- Award ID(s):
- 1728649
- PAR ID:
- 10181407
- Date Published:
- Journal Name:
- Chemical Communications
- Volume:
- 56
- Issue:
- 26
- ISSN:
- 1359-7345
- Page Range / eLocation ID:
- 3745 to 3748
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1039/D0CC00064G
