Optical temperature sensing properties and thermoluminescence behavior in Er-modified potassium sodium niobate-based multifunctional ferroelectric ceramics

Abstract

Er3+-doped KNN-based ceramics exhibited multifunctional features with upconversion luminescence, thermoluminescence, and ferroelectric/piezoelectric properties, which may enable novel applications in the field of optoelectronic devices.

Dy3+doped (K,Na)NbO3-based multifunctional ceramics for achieving enhanced temperature-stable piezoelectricity and non-contact optical temperature sensing performance

“…As listed in Table 1, excellent piezoelectricity can be observed in the LKNNS-BZ-0.02DyNZ ceramic samples when compared with the piezoelectric properties reported recently in the representative fluorescent KNN-based lead-free ceramics. 8,41–44 The bipolar strain of the LKNNS-BZ-0.02DyNZ ceramics was also measured for comparison, as shown in Fig. 6(b).…”

CaGdF5 based heterogeneous core@shell upconversion nanoparticles for sensitive temperature measurement

“…Consequently, Er 3+ -doped luminescent materials have been widely used as probes for thermal sensing applications. [8][9][10][11][12][13] Besides, it is crucial to choose an appropriate host material with low crystal eld symmetry 14 and low phonon energy 15 that provide an efficient luminescence signal for practical applications. On the one hand, the forbiddance of the 4f-4f electronic-dipole transitions of rare-earth ions can be broken by the crystal eld symmetry of the host matrix.…”

“…Consequently, Er 3+ -doped luminescent materials have been widely used as probes for thermal sensing applications. 8–13…”

Sc1−xErxAlO3perovskites: high-pressure synthesis, photoluminescence properties, andin vitrobioimaging

“…25,26 Further, they are promising candidates for light-emitting diodes, optical thermometry, and cell imaging applications, which make them more interesting. [27][28][29][30] Nowadays, imaging modalities like magnetic resonance imaging (MRI), X-ray computed tomography (CT), thermal imaging, ultrasound, optical imaging, etc. have emerged as indispensable techniques for biomedical applications.…”

“…25,26 Further, they are promising candidates for light-emitting diodes, optical thermometry, and cell imaging applications, which make them more interesting. 27–30…”