Related Experiment Video
Updated: Jun 14, 2025

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
Published on: December 27, 2018
A new red phosphor for high time-resolved thermal sensitivity and plant growth
Yu-Xi Bi1, Dan Zhao1,2, Rui-Juan Zhang1
1College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China.
Abstract:
Luminous materials with a rapid lifetime response have garnered significant interest in sensing technology. In this work, the transition element Mn doped phosphor Sr2TiO4:Mn4+ was synthesized by a traditional high temperature solid phase method. The emission peak of Sr2TiO4:0.009Mn4+ aligns closely with the absorption peak of phytochrome Pfr. The temperature-dependent photoluminescence (PL) spectra and lifetime of Sr2TiO4:0.009Mn4+ were examined within the temperature range of 273-323 K. The temperature sensing characteristics based on the lifetime were analyzed, and the maximum relative sensitivity was 14.93% K-1 at 309 K. The high sensitivity of the Sr2TiO4:0.009Mn4+ phosphor makes it a promising material for temperature sensing applications.
Related Concept Videos
Photoreceptors and Plant Responses to Light
Photoluminescence: Applications
Fluorescence and Phosphorescence: Instrumentation
Biological Clocks and Seasonal Responses

