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Soluble luminescent temperature probes are promising candidates for optical thermometry and thermography applications requiring precise, passive, and spatially resolved temperature data. Dual-emitting temperature sensors overcome many of the obstacles encountered with absolute intensity-based luminescence sensors, including optical occlusion, concentration variation, or nonspecificity, by providing internally referenced (ratiometric) signals. Here, we provide an overview of the key mechanisms underpinning the dual emission of various nanostructures from recent literature and discuss their relationship to optical thermometry.
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McLaurin et al. (2013) studied this question.
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