A Triarylboron-Based Fluorescent Thermometer: Sensitive Over a Wide Temperature Range

摘要

Temperature is one of the most frequently measured variables as it is a principal thermodynamic property. Many types of thermometers, which utilize various kinds of temperature-dependant physical properties, such as volume, electric potential, and electric conductance, have been developed for quantitative temperature measurement. Precise temperature measurements in various environments require higher thermometer performance. For instance, in situ large-area or gradient temperature measurements with high spatial resolution, which are often required in marine research, underground geochemistry, wind tunnels, and automobile and aircraft industries, present a serious challenge to traditional thermometers. A sensor with size from tens of micrometers to several millimeters is required for temperature detection in most thermometers, such as liquid-in-glass thermometers, thermocouples, and thermistors. An array of these sensors is used to achieve this goal, but has disadvantages because of complications, high cost, and low spatial resolution.