Infrared‐to‐visible conversion in strontium sulphate through a defect‐based infrared stimulated visible emission phenomenon

Author:

Sharma Bhumika12,Deshmukh Pratik12,Satapathy Srinibas12ORCID,Majumder Shovan Kumar12

Affiliation:

1. Functional BioMaterials Laboratory, Laser Biomedical Applications Division Raja Ramanna Centre for Advanced Technology Indore Madhya Pradesh India

2. Homi Bhabha National Institute Training School Complex, Anushakti Nagar Mumbai Maharashtra India

Abstract

AbstractStrontium sulphate (SrSO4) is a defect‐based photoluminescence material, generally used in thermoluminescence applications, and has been studied for infrared (IR) stimulated visible emission. The SrSO4 particles were synthesized using a precipitation method. The orthorhombic phase of SrSO4 was confirmed from the X‐ray diffraction pattern and the formation of micron‐sized particles was authenticated from field emission scanning electron micrographs. The elemental composition of oxygen and strontium was determined using energy‐dispersive X‐ray analysis measurement that confirmed the presence of and intrinsic defects in the material. Photoluminescence investigations showed the presence of various defect bands in the band gap giving rise to intrinsic luminescence in SrSO4. The emission in the visible region was attributed to the defect band arising due to . Photoluminescence lifetime measurement confirmed the presence of stable defect states with a lifetime in microseconds. The SrSO4 sample was tested using IR lasers and a red–orange emission spot was observed from the powder sample when excited with IR lasers. The underlying principle for IR‐to‐visible conversion in the material is a defect‐mediated phenomenon that has been described through the energy level diagram of the material.

Funder

Department of Atomic Energy, Government of India

Publisher

Wiley

Subject

Chemistry (miscellaneous),Biophysics

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. The energy transfer of electronic excitations to impurities in dosimetric phosphors BaSO4-Dy;Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;2024-10

2. Rational development of semiconductor-based electrocatalyst and its electrochemical activity for ethanol oxidation as an assisted reaction for water splitting;International Journal of Hydrogen Energy;2024-06

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