Publication | Closed Access
Temperature‐Dependent Dual Emission from Sucrose‐Derived Carbon Nanodots: A Ratiometric Fluorescent Thermometer
20
Citations
39
References
2016
Year
EngineeringCarbon NanotechnologyRatiometric Fluorescent ThermometersChemistryLuminescence PropertyAbstract Carbon NanodotsConspicuous Dual EmissionCarbon-based MaterialTemperature‐dependent Dual EmissionBioimagingNanosensorCarbon-based FilmsHybrid MaterialsBiophysicsSucrose‐derived Carbon NanodotsMaterials ScienceRatiometric Fluorescent ThermometerNanotechnologyCarbonizationNanomaterialsNanoreactor
Abstract Carbon nanodots (CNDs) with conspicuous dual emission (at 450 and 517 nm) were fabricated by hydrothermal treatment of aqueous sucrose solution. The temperature‐dependent photoluminescence (PL) and time‐resolved PL were investigated. The trapping of excited electrons by the nonradiative defects should substantially account for the PL quenching as the temperature increases. The sucrose‐derived CNDs show great potential for applications as ratiometric fluorescent thermometers with a sensitivity of approximately 2.15 % °C −1 .
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