Time-gated multi-dimensional luminescence thermometry <i>via</i> carbon dots for precise temperature mobile sensing
Sílvia F. V. Silva, Gonçalo Figueiredo, Rui F. P. Pereira, V. de Zea Bermudez, Lianshe Fu, Paulo André, Albano N. Carneiro Neto, Rute A. S. Ferreira
Abstract
A new luminescence thermometry method uses surface- engineered carbon dots with temperature-responsive phosphorescence. Activated by low-power LED and measured via smartphone, it shows 7.9% °C −1 sensitivity, surpassing existing CD-based thermometers.
Topics & Concepts
LuminescenceMaterials sciencePhosphorescenceSensitivity (control systems)OptoelectronicsNanotechnologyCarbon fibersTemperature measurementOpticsFluorescenceElectronic engineeringComposite materialPhysicsComposite numberQuantum mechanicsEngineeringLuminescence Properties of Advanced MaterialsGas Sensing Nanomaterials and SensorsLuminescence and Fluorescent Materials