Effects of temperature and electric field on upconversion luminescence in Er3+‐Yb3+ codoped Ba0.8Sr0.2TiO3 ferroelectric ceramics

Sun, Qiu; Pan, Yunxing; Liu, Zhikai; Chen, Xiangqun; Ye, Mao

doi:10.1111/jace.15002

Cited by 16 publications

(12 citation statements)

References 26 publications

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“…Ferroelectric materials with luminescent properties are an important class of optoelectronic functional materials that possess great potential for applications in spintronics, photovoltaics, optical-electrical-mechanical actuators, and so on 1 . To date, research on luminescent ferroelectrics has mainly focused on inorganic perovskites with a general formula of ABO 3 (where A and B are metal ions with different sizes), which have been widely investigated and found to have numerous applications over the last few decades 2,3 . However, due to the pressing environmental and energy issues, their time-consuming, high-cost, and energy-intensive fabrication processes severely hinders the future developments of these inorganic ferroelectrics.…”

Section: Introductionmentioning

confidence: 99%

An above-room-temperature phosphonium-based molecular ferroelectric perovskite, [(CH3)4P]CdCl3, with Sb3+-doped luminescence

et al. 2019

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Molecular ferroelectrics are attracting tremendous interest because of their low cost, mechanical flexibility, easy processing, low weight, and low acoustical impedance. Moreover, their combination of ferroelectric and optical properties has led to investigations of their many potential applications, such as low-energy electron excitation and field emission displays. However, luminescent molecular ferroelectrics have rarely been reported, except for several AMnX 3-type or lanthanide ion-based luminescent ferroelectrics. Here, we report the first above-room-temperature phosphonium-based molecular ferroelectric perovskite, [(CH 3) 4 P]CdCl 3 (1), with a high Curie temperature (T c = 348 K) and moderate remanent polarization (P r = 0.43 μC/cm 2). Using piezoresponse force microscopy (PFM), the typical stripe-like domains of ferroelectrics can be observed. Moreover, 1 exhibits orange luminescence under UV excitation after doping with Sb 3+ , which represents a first step toward realizing luminescence-enhanced molecular ferroelectrics with various wavelengths. These results will inspire the further exploration of phosphonium-based ferroelectrics and pave the way toward practical applications in ferroelectric luminescence and/or multifunctional devices.

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Section: Introductionmentioning

confidence: 99%

An above-room-temperature phosphonium-based molecular ferroelectric perovskite, [(CH3)4P]CdCl3, with Sb3+-doped luminescence

et al. 2019

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“…Barium titanate (BaTiO 3 ) is probably the most widely studied and used multifunctional ferroelectric ceramic. A great deal of experimental and theoretical researches on both aliovalent and isovalent doping in BaTiO 3 has produced great insights, which are constantly growing. ,,,,,− …”

Section: Ferroelectricsmentioning

confidence: 99%

Defects and Aliovalent Doping Engineering in Electroceramics

et al. 2020

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Since the positive influences of defects on the performance of electroceramics were discovered, investigations concerning on defects and aliovalent doping routes have grown rapidly in the fields of inorganic chemistry and condensed matter physics. In this article, we summarized the types of defects in electroceramics as well as characterization tools of defects and highlighted the effects of intrinsic and extrinsic defects on the material performances with the emphasis on dielectric, ferroelectric, and piezoelectric properties. We mainly introduced defect related theoretical simulation and experimental results in several typical incipient ferroelectrics, ferroelectrics, and antiferroelectrics. Hence, the influences of defects on the crystal lattice were summed up, and then the main physical mechanisms were highlighted. Particularly, the performance enhancements of aliovalently doped electroceramics were also evaluated and reviewed. Finally, the outlook and challenges were discussed on the basis of their current developments. This article covers not only an overview of the state-of-the-art advances of defects and aliovalent doping routes in electroceramics but also the future prospects that may open another window to tune the electrical performance of electroceramics via intentionally introducing certain defects.

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“…As a result of the excellent UCL properties, perovskite-type oxides are also used as temperature sensor materials. Such temperature sensing is a noncontact measurement with high sensitivity, high signal discriminability, and broad range dynamic imaging [16,24,26,27] . In this respect, several literatures have investigated the effects of temperature on the UCL in the RE-doped perovskite-type oxides.…”

Section: Introductionmentioning

confidence: 99%

“…In this respect, several literatures have investigated the effects of temperature on the UCL in the RE-doped perovskite-type oxides. Sun et al reported a maximum sensitivity of 1.07 × 10 −2 K −1 at room temperature for the Er 3 , Yb 3 co-doped Ba 0.8 Sr 0.2 TiO 3 ferroelectric ceramics [27] . Meanwhile, Mahata et al demonstrated that Zn 2 ions can improve the temperature-sensing performance of the perovskite BaTiO 3 ∶Er 3 =Yb 3 nanophosphors [16] .…”

Section: Introductionmentioning

confidence: 99%

Empowering perovskite PbTiO3 nanoparticles with enhanced up-conversion luminescence and thermal sensitivity by introducing Er3+ dopant

Zhu

Lei

et al. 2021

Chin. Opt. Lett.

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Up-convertion (UC) perovskite Er 3+ -doped PbTiO 3 (Er-PTO) nanoparticles with green and red emissions were synthesized via the hydrothermal method. The UC properties were manipulated by adjusting the concentration of Er 3+ ions dopant. The green emission intensity was decreased as the doping concentration increased from 1% to 4% (mole fraction), whereas the red emission intensity was increased. The influences of Er 3+ ions on the temperature-sensing performance were further investigated. The results demonstrated that Er-PTO nanoparticles with doping 1% Er 3+ ions possessed a sensitivity of 3.1 × 10 -3 K −1 at 475 K, presenting a high potential in optical heating devices.

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Effects of temperature and electric field on upconversion luminescence in Er³⁺‐Yb³⁺ codoped Ba_0.8Sr_0.2TiO₃ ferroelectric ceramics

Cited by 16 publications

References 26 publications

An above-room-temperature phosphonium-based molecular ferroelectric perovskite, [(CH3)4P]CdCl3, with Sb3+-doped luminescence

An above-room-temperature phosphonium-based molecular ferroelectric perovskite, [(CH3)4P]CdCl3, with Sb3+-doped luminescence

Defects and Aliovalent Doping Engineering in Electroceramics

Empowering perovskite PbTiO3 nanoparticles with enhanced up-conversion luminescence and thermal sensitivity by introducing Er3+ dopant

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