Article
Optics
Dongxun Chen, Yanjie Liang, Shihai Miao, Jianqiang Bi, Kangning Sun
Summary: In this study, Nd3+-doped Bi2SiO5 nanospheres were developed as nanothermometers to monitor biological processes. These nanospheres can be excited by an 808 nm near infrared laser and emit in the near infrared range due to the characteristic transitions of Nd3+. The luminescence intensity ratio of two spectrally separated emission peaks from Nd3+ can be used for luminescent ratiometric thermal sensing, showing promising potential for temperature probes in nanothermometry applications.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Multidisciplinary
Hao Suo, Dongxu Guo, Peihang Zhao, Xin Zhang, Yu Wang, Weilin Zheng, Panlai Li, Tao Yin, Li Guan, Zhijun Wang, Feng Wang
Summary: In this study, a programmable luminescence color switching is achieved in lanthanide-doped LiYO2 under thermal stimuli. By controlling the phase-transition behavior of the crystal lattice, an array of crystals that exhibit sequential color switching at gradually increasing temperatures is constructed. Furthermore, a lanthanide-doping approach to fine-tune the phase-transition temperature in a wide range is developed. The tunable optical response is harnessed for colorimetric temperature indication and quantitative detection, demonstrating superior sensitivity and temperature resolution.
Article
Nanoscience & Nanotechnology
Karolina Kniec, Karolina Anna Ledwa, Lukasz Marciniak
Summary: Coating luminescent nanoparticles with a SiO2 shell can improve their dispersibility, reduce toxicity, and facilitate biofunctionalization; However, it is important to ensure that the encapsulation process does not alter the thermometric properties of the nanoparticles; This study investigates the effect of SiO2 encapsulation on the thermometric properties of YAG:V3+,Nd3+ nanoparticles and finds that increasing the thickness of the SiO2 layer enhances the thermal stability of the luminescence while maintaining a thin shell for high relative sensitivity.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Guixian Li, Gan Li, Qinan Mao, Lang Pei, Hua Yu, Meijiao Liu, Liang Chu, Jiasong Zhong
Summary: Introducing smaller Mg2+ ions to replace Ca2+ site in the BaLaCaSbO6 matrix leads to a significant enhancement in luminescence intensity, red-shift, and luminescence lifetime. These modulations are mainly attributed to the strengthen pressure on the local structure, superior lattice rigidity, and suppression of non-radiative transition after the substitution of smaller Mg2+. The effective lifetime-based luminescence thermometry is achieved due to thermal quenching behavior of Mn4+ ions in the matrix.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
T. H. Q. Vu, B. Bondzior, D. Stefanska, P. J. Deren
Summary: Nd3+-doped La2MgTiO6 samples synthesized by the coprecipitation method exhibited heterogeneous morphology with an average crystallite size of 0.7 μm. The emission intensities were highest for the sample doped with 3% Nd3+, and the emission lifetimes were found to decrease with increasing Nd3+ concentration. Energy transfer between Nd3+ ions was primarily controlled by dipole-dipole interactions, and the temperature-dependent luminescence showed good thermal stability with quenching at 450 K. The sample doped with 5% Nd3+ demonstrated temperature sensing ability based on the emission of thermally coupled F-4(5/2) and F-4(3/2) levels, with relative sensitivities of 0.81% K-1 at 248 K and 0.83% K-1 at 275 K.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
D. Stefanska, T. H. Q. Vu, P. J. Deren
Summary: This study investigates multiple non-contact temperature measurement methods based on La2MgTiO6 double perovskite doped and co-doped with transition metal ions (Mn4+ and Cr3+) for the first time. The temperature sensing performance of La2MgTiO6:Mn4+, La2MgTiO6:Cr3+, and La2MgTiO6:Mn4+, Cr3+ luminescent thermometers is examined. The optimal concentration of manganese ions is found to be 0.8%. Additionally, La2MgTiO6:Mn4+, Cr3+ shows potential for multimodal temperature detection.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
K. Trejgis, Feng Tian, Jiang Li, A. Bednarkiewicz, L. Marciniak
Summary: The study found that the size of phosphors and surface quenching processes can affect the sensitivity of luminescent thermometers, leading to a reduction in usable temperature range.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
W. M. Piotrowski, K. Maciejewska, L. Dalipi, B. Fond, L. Marciniak
Summary: This study proposes a strategy to enhance the performance of luminescent thermometers by utilizing energy transfer between chromium ions and lanthanide ions. Experimental results demonstrate that the co-doping of Cr3+ ions significantly improves the luminescence brightness and sensitivity of the thermometer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Lukasz Marciniak, Wojciech Michal Piotrowski, Marek Drozd, Vasyl Kinzhybalo, Artur Bednarkiewicz, Miroslav Dramicanin
Summary: Current luminescent thermometers rely on temperature-dependent processes, but suffer from insufficient brightness at high temperatures. Luminescent nano-thermometry based on continuous phase transitions offers a potential alternative approach.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Optics
Mingjun Song, Lintong Wang, Jing Wang, Peng Du
Summary: Mn4+-doped and Eu3+/Mn4+-codoped La2Mg1.33Ta0.67O6 phosphors were studied for their properties as optical thermometers. Mn4+-doped phosphors emitted intense red emissions, while Eu3+/Mn4+-codoped phosphors could be excited by different wavelengths and their luminescence behaviors could be manipulated by adjusting Eu3+ content. The thermometric performance of the phosphors was investigated by analyzing the fluorescence intensity rate and the temperature-dependent lifetime of Mn4+, and their maximum relative sensitivities were found to be 2.72% K-1 and 3.42% K-1, respectively, independent of the excitation wavelength.
JOURNAL OF LUMINESCENCE
(2022)
Article
Engineering, Environmental
Teng Zheng, Laihui Luo, Peng Du, Stefan Lis, Ulises R. Rodriguez-Mendoza, Victor Lavin, Marcin Runowski
Summary: Remote temperature and pressure monitoring provides opportunities to explore the luminescence properties of compounds under extreme conditions. In this study, double perovskite Gd2ZnTiO6 phosphors doped with Mn4+ were developed as bifunctional sensors for temperature and pressure. The optimized doping concentration of Mn4+ was found to achieve the highest emission intensity, and the concentration quenching mechanism was determined to be dipole-dipole interaction. The synthesized phosphors exhibited high internal and external quantum efficiencies, and demonstrated good thermal and pressure sensing properties.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jiaqi Ou, Shuangqiang Fang, Qiangqiang Zhu, Yue Zhai, Hong Zhang, Le Wang
Summary: A series of SrGa12-xAlxO19:0.5%Cr3+(x = 0, 2, 4, and 6) solid-solution phosphors were successfully synthesized through Al3+ alloying strategy. The introduction of Al3+ can regulate the crystal field and symmetry, achieving the synchronous tuning of E-2 and T-4(2) energy levels and extending the temperature sensing range. Among all samples, SrGa6Al6O19:0.5%Cr3+ showed the widest temperature measuring range from 130 K to 423 K with Sa of 0.0066 K-1 and Sr of 1% K-1@130 K. This work provides a feasible way to extend the temperature sensing range for transition metal-doped LIR-mode thermometers.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Ceramics
Kevin Soler-Carracedo, Teng Zheng, Marcin Runowski, Laihui Luo, Inocencio R. Martin
Summary: KNN: Pr3+ materials with intense Pr3+ down-shifting luminescence and color-tunable, excitation wavelength-dependent second-harmonic generation were successfully synthesized. The intensity ratio of Pr3+ emission bands and the SHG signal were analyzed as a function of temperature, showing maximum sensitivities at 420 K and 560 K, respectively. The developed thermometer combining luminescence thermometry and SHG based thermometry can be used as a highly-sensitive, dual-mode temperature sensor.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Woo Je Chang, Shawn Irgen-Gioro, Albert F. Vong, Hacksung Kim, Michael W. Mara, Lin X. Chen, Emily A. Weiss
Summary: This study demonstrates an enhancement of emission intensity by a factor of 19 for Sm3+ ions in CsPbCl3 nanocrystal hosts through the use of a phase transition of the host lattice. The results indicate that decreasing temperature contributes to the increase in emission intensity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Chuan Liao, Feng Chen, Hao Wu, Huajun Wu, Liangliang Zhang, Guo-hui Pan, Feng Liu, Xiao-jun Wang, Jiahua Zhang
Summary: The highly sensitive afterglow intensity ratio (AIR) thermometry based on thermal quenching (TQ) mechanism using Y3Al2Ga3O12:Pr3+ persistent phosphor is reported. The AIR shows strong temperature dependence in the range of 30-170 degrees C, with a maximum relative sensitivity of up to 4.12% degrees C-1 at 170 degrees C. The method is demonstrated by accurately measuring water temperature with an error of only 0.1 degrees C.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Engineering, Environmental
Can He, Takashi Takeda, Zhaohui Huang, Jian Xu, Jun Chen, Wei Yi, Rongjun Xie, Naoto Hirosaki
Summary: The novel needle-like Ba5Si11Al7N25:Eu2+ phosphor exhibits a broad yellow emission band centered at 570 nm. Compared with YAG: Ce phosphor, it has a longer emission wavelength, indicating potential application in warm white LEDs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Qiping Du, Jumpei Ueda, Ruilin Zheng, Setsuhisa Tanabe
Summary: A Pr3+-doped Y3Al2Ga3O12 transparent ceramic is reported with high in-line transmittance and strong red persistent luminescent (PersL) properties. The material exhibits long luminance duration time and robust fatigue resistance. This study opens up new avenues for future research on multifunctional materials and their potential applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zhiyu Yang, Yifei Zhao, Jumpei Ueda, Maxim S. Molokeev, Mengmeng Shang, Zhiguo Xia
Summary: In this study, a blue-light-excitable red-emitting phosphor Ce3+-doped SrLaScO4 (SLO:Ce3+) was discovered. Spectroscopy and structural analyses confirmed that Ce3+ ions competitively occupied the [LaO8] polyhedrons, generating a strong crystal field splitting and a large Stokes shift, resulting in a red emission. Furthermore, incorporating a large electronegative Ga3+ in the Sc3+ site effectively enhanced the thermal stability of SLO:Ce3+ by suppressing the thermally stimulated ionization process, thereby presenting a general design principle for discovering novel Ce3+-doped red phosphors with good thermal stability for white light-emitting diode (WLED) applications.
SCIENCE CHINA-MATERIALS
(2023)
Article
Energy & Fuels
Jurij Grechenkov, Aleksejs Gopejenko, Dmitry Bocharov, Inta Isakovica, Anatoli I. Popov, Mikhail G. Brik, Sergei Piskunov
Summary: In this study, we investigated the less studied solid solutions of CuGaS2, AgGaS2, and CuGaSe2 chalcopyrites using ab initio methods. Our theoretical simulations indicate that excess of In and Se in the solid solutions leads to band gap narrowing and broadening of the absorption spectra. These findings suggest potential photovoltaic applications for these compounds and demonstrate the usefulness of our developed methodology for further study of other promising chalcopyritic compounds.
Article
Materials Science, Multidisciplinary
Takayuki Nakanishi, Yuichi Hirai, Jian Xu, Takashi Takeda, Shunsuke Watanabe, Atsuo Yasumori, Shou Hakamada, Yuichi Kitagawa, Yasuchika Hasegawa
Summary: Luminescent lanthanide coordination polymer crystals (LCPCs) are of great interest in materials chemistry due to their unique and customizable functional properties. These crystals offer a high degree of structural tunability, including size- and morphology-dependent properties, making them promising materials for various applications such as light emitting diodes.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2023)
Article
Instruments & Instrumentation
Takayuki Nakanishi, Jian Xu, Naoto Hirosaki, Takashi Takeda
Summary: In this study, the morphology controllability of a thermostable crystalline europium coordination polymer was demonstrated to achieve transparent phosphors. The obtained spherical Eu3+-coordination particles were analyzed and characterized, and the feasibility of this morphology control method was confirmed. This knowledge is expected to be widely used in the development of new lanthanide-based coordination phosphors.
SENSORS AND MATERIALS
(2023)
Article
Chemistry, Physical
Lily Bossin, Igor Plokhikh, Jeppe Brage Christensen, Dariusz Jakub Gawryluk, Yuuki Kitagawa, Paul Leblans, Setsuhisa Tanabe, Dirk Vandenbroucke, Eduardo Gardenali Yukihara
Summary: The objective of this work is to assess the potential of MgB4O7:Ce,Li for optically stimulated luminescence (OSL) dosimetry. The operational properties of MgB4O7:Ce,Li were evaluated, including thermoluminescence spectroscopy, sensitivity, thermal stability, luminescence lifetime, dose response at high doses, fading, and bleachability. Compared with Al2O3:C, MgB4O7:Ce,Li showed comparable OSL signal intensity, higher saturation limit, and shorter luminescence lifetime. However, further optimization is needed due to anomalous fading and shallow traps.
Article
Chemistry, Multidisciplinary
Enrico Trave, Michele Back, Davide Pollon, Emmanuele Ambrosi, Leonardo Puppulin
Summary: NaBiF4 nanocrystalline particles were synthesized and doped with lanthanide ions to explore their upconversion emission properties. By incorporating the Yb3+-Ho3+-Ce3+ triad, near-IR pumping conversion into visible light was achieved, with the ability to tune the color emission. The study also demonstrated the potential of the NaBiF4 particles for lanthanide-based light frequency conversion and multicolor emission tuning.
Article
Chemistry, Physical
Atsunori Hashimoto, Jumpei Ueda, Yasushi Aoki, Pieter Dorenbos, Setsuhisa Tanabe
Summary: RE2O2S:Eu3+-Ln(3+) (RE = La, Gd, Y, Lu; Ln = Pr, Tb) samples were prepared and studied as red persistent phosphors. Eu3+-singly doped RE2O2S showed weak TL glow peaks, but additional strong TL peaks were observed by codoping Pr3+ or Tb3+ ions. The PersL and TL spectra only showed luminescence from Eu3+, indicating that Eu3+ acts as a recombination center while Pr3+ and Tb3+ ions act as hole trap centers. La2O2S:Eu3+-Pr3+ was found to be the best composition, displaying strong red persistent luminescence at ambient temperature.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Akane Wakabayashi, Yuji Masubuchi, Mikio Higuchi, Jumpei Ueda, Setsuhisa Tanabe
Summary: In this study, a Mn2+-doped ZnCN2 phosphor was synthesized using ammonia nitridation. The phosphor exhibited multi-wavelength luminescence, with a main emission band at 580 nm due to isolated Mn2+ ions, as well as minor emissions at 500 nm and 670 nm caused by anion vacancies and Mn-Mn pairs in the ZnCN2 crystal structure. Moreover, the intensity ratios of these luminescent bands changed with temperature, leading to a color shift from orange to yellow-green.
Article
Materials Science, Ceramics
Michele Back, Jian Xu, Jumpei Ureda, Setsuhisa Tanabe
Summary: Nd3+-doped Y3Al2Ga3O12 garnet ceramic pellet was prepared and investigated as a potential Boltzmann thermometer for cryogenic and high temperature ranges. The use of Nd3+-activated phosphors in biological applications is limited by low sensitivity in physiological temperature range. However, photoluminescence analysis showed interesting performances in both cryogenic and high temperature ranges by utilizing Stark levels and emission ratios between excited states.
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2023)
Article
Materials Science, Multidisciplinary
Qiping Du, Jumpei Ueda, Setsuhisa Tanabe
Summary: This study developed transparent ceramics doped with Pr3+, which exhibit different persistent luminescence (PersL) colors. By manipulating the crystal field and nonradiative relaxation processes, the luminescence intensity ratio of Pr3+ was altered, resulting in different PersL colors. The transparent phosphors with deep trap depths can be used in night-vision illumination and information storage applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)