A new red phosphor for high time-resolved thermal sensitivity and plant growth

Yu-Xi Bi; Dan Zhao; Rui-Juan Zhang; Qing-Xia Yao

doi:10.1039/d4dt02099e

A new red phosphor for high time-resolved thermal sensitivity and plant growth

Dalton Trans. 2024 Nov 19;53(45):18237-18242. doi: 10.1039/d4dt02099e.

Authors

Yu-Xi Bi¹, Dan Zhao^{1

2}, Rui-Juan Zhang¹, Qing-Xia Yao³

Affiliations

¹ College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China.
² State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China.
³ School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng, Shandong 252000, China.

PMID: 39206585
DOI: 10.1039/d4dt02099e

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 P_fr. 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.