Organic Semiconductors and Temperature Sensors

 


New research into organic semiconductors is being led by the University of St. Andrews. It provides understanding into sustainable temperature sensors for use in our everyday technology.

The third-generation of emitters used in organic light-emitting diodes (OLEDs) uses something called thermally activated delayed fluorescence (TDAF). They are of interest to researchers as alternatives to noble metal with phosphorescent components used in OLEDs like mobile phones. Sensors and the introduction of organic semiconductors has been far less researched. 

This research was published in Nature Communications. It was led by Professor Eli Zysman-Colman from the School of Chemistry. The team has found an interesting organic compound. It is used for colorimetric temperature sensing. It has the widest spectral and temperature range as compared to other optical temperature probes.

Prof. Zysman-Colman summarizes, “Clever control of the populations of emitter molecules and aggregates is responsible for the temperature change that we have exploited in this optical temperature probe. Given its  wide temperature sensitivity, especially across physiological temperatures, we foresee that such a sensor could find numerous uses, such as in rapid temperature detection on packages.”

Much more research into OLEDs is necessary for the advancement of technology in the future. 


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