Abstract
Er3+ doped PIN-PMN-PT (PIN-PMN-PT:Er3+) ceramic was synthesized by two step columbite precursor method. The structure and morphology of products are characterized by X-Ray diffraction (XRD) and scanning electron microscopy (SEM). It is demonstrated that the ceramic has the perovskite structure and grain size in the range of 3 μm–5 μm. Under excitation of 980 nm diode laser, obvious green and red emission bands were detected. According to the power dependent upconversion emission and energy level diagram, the possible energy transfer process was proposed. The optical temperature sensing properties were studied based on fluorescence intensity ratios (FIRs) from thermal coupled energy levels (TCELs) 2H11/2,4S3/2 and thermal linked red emission stark sublevels 4F9/2(1), 4F9/2(2) of Er3+ ions. respectively. The absolute sensitivity reaches maximum value of 0.0035 K−1 at 360 K corresponding to TCELs and 0.0025 K−1 at 327 K corresponding to stark sublevels in the measurement temperature range. The incident near-infrared laser induced heating effects were investigated. It is found that the pump power induced heating effect can be neglected in the range of 110 mW–460 mW. These results demonstrated that PIN-PMN-PT:Er3+ ceramic is a potential material for application in optical temperature sensing and this research pave the way for further developing ceramic based dual-mode FIR thermometry technique.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
