Response to "Critical growth temperature of aqueous CdTe quantum dots is non-negligible for their application as nanothermometers"

Laura Martinez Maestro, Carlos Jacinto, Ueslen Rocha Silva, Fiorenzo Vetrone, John A. Capobianco, Daniel Jaque, Jose Garcia Sole

    Research output: Contribution to journalLetterpeer-review

    Abstract

    Researchers responded to the findings of the paper entitled 'Critical Growth Temperature of Aqueous CdTe Quantum Dots (QD) is Non-negligible for their Application as Nanothermometers'. This study was motivated by earlier published article in Small entitled 'CdTe Quantum Dots as Nano-thermometers: Towards Highly Sensitive Thermal Imaging'. The authors reported that the thermal sensitivity of the CdTe QDs that they synthesized was size-independent for three different capping agents. New QDs were ordered from Plasmachem Inc., and the thermal sensitivity of QDs of different sizes was measured to explain the differences. A linear relationship between the emission wavelength and size was obtained for QDs of size 4.7 and 3.8 nm. Researchers responded that the inner lattice expansion/contraction of QDs was a key factor in determining their characteristic thermal sensitivity, which was modified by the presence of strong and directional surface forces caused by the different capping agents.
    Original languageEnglish
    Pages (from-to)3198-3200
    Number of pages3
    JournalSmall
    Volume9
    Issue number19
    DOIs
    Publication statusPublished - 11 Oct 2013

    Keywords

    • quantum dots
    • luminescence
    • thermometers
    • bioimaging

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