Article
Chemistry, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Egor M. Zonov, Dina V. Deyneko, Dmitry A. Spassky, Fedor D. Fedyunin, Alexei A. Belik, Erzhena T. Pavlova, Andrey A. Vasin, Bogdan I. Lazoryak
Summary: The effects of composition and preparation conditions of palmierite-type K5Yb1-xEux(MoO4)(4) (KYEMO) compounds on their structural and luminescence properties were investigated. Three modifications, α-phase, β-phase, and γ-phase, were obtained and characterized. The luminescence characteristics of the KYEMO solid solutions were studied, and the influence of concentration and synthesis conditions on the luminescence intensities were observed. The K5Yb1-xEux(MoO4)(4) phosphors show great potential for near UV-WLEDs due to their structural and optoelectronic characteristics.
Article
Materials Science, Ceramics
Junhao Xing, Feng Luo, Yaoyi Qin, Ying Luo, Zhixin Gao, Fei Shang, Guohua Chen
Summary: In this study, rare earth tri-doped precursor glasses and transparent glass-ceramics were developed, and it was found that the up-conversion emission intensity of the latter was significantly enhanced. By controlling the doping ratios of the rare earth ions, multi-ratio optical temperature measurement was achieved, and high sensitivity results were obtained. Additionally, the obtained transparent glass-ceramics exhibited high energy density and power density under charging and discharge conditions, making them suitable for photoelectric conversion applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Joanna Drabik, Lukasz Marciniak
Summary: The luminescence thermometry method utilizes the strong thermal dependence of thermally induced excited state absorption to improve temperature readout parameters, and can be applied for 2D thermal imaging of microelectronic printed circuit boards using the strong color changes exhibited by phosphors.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Jun Song, Feng Luo, Guohua Chen
Summary: To develop new inorganic multifunctional materials, Yb3+/Er3+ doped precursor glasses (PGs) were fabricated and a niobate transparent photoelectric glass ceramic (GC) was gained via controlled crystallization of PG. The up-conversion (UC) luminescence performance in GC was significantly increased compared to PG. The dual-mode optical temperature measurement was realized through fluorescence intensity ratio (FIR) methods, with an ultimate absolute sensitivity (Sa-max) of 0.68 %K-1 and relative sensitivity (Sr-max) of 0.85% K-1 based on thermal/non-thermal coupling energy levels (TCELs/NTCELs). The single-layer capacitor made of GC exhibited an energy density of 0.83 J/cm3 (@600 kV/cm) and a power density of 210 MW/cm3. This work suggests potential applications of niobate transparent glass ceramics in optical thermometry and pulse energy storage.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Nicolaj Kofod, Thomas Just Sorensen
Summary: The study focuses on the optical transitions of lanthanide(III) ions, specifically examining the photophysical characteristics of the [Tb(H2O)9]3+ aqua ion. By determining various parameters, such as luminescence quantum yield, excited state lifetime, and rate constants, the researchers were able to map the radiative and nonradiative transition probabilities. Additionally, the coordination of the Tb3+ ion in aqueous solution was reevaluated using the Horrocks method.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Ceramics
Jiantong Wang, Bowen Wang, Yuhan Teng, Changshuai Gong, Xuyan Xue, Xuejiao Wang, Ji-Guang Li
Summary: A novel K3(Y0.88Yb0.10Er0.02)Si2O7 phosphor was synthesized and investigated for its up-conversion luminescence and optical thermometric performance. The phosphor exhibited strong green UC emission and could sense temperature through fluorescence intensity ratio (FIR) and fluorescence lifetime (FL) modes. The maximum absolute sensitivity (SA) and relative sensitivity (SR) were higher than previous studies, with SA = 156 x 10-4 K-1 (I531/I555, 298 K) and SR = 1.80% K-1 (I519/I555, 298 K) via the FIR mode, and SA = 661 x 10-4 K-1 (548 K) and SR = 9.77% K-1 (298 K) via the FL mode.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Joanna Drabik, Radoslaw Lisiecki, Lukasz Marciniak
Summary: In this study, it was found that there is thermal quenching of Tb3+ emission intensity in TZPN glass during excitation, and high sensitivity temperature readouts can be achieved through optimization of the luminescence intensity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Optics
Limin Liu, Junhao Xing, Fei Shang, Guohua Chen
Summary: Yb3+/Ho3+ dual-doped fluoroborate glasses were characterized for their structure, transmittance, up-conversion emission spectrum, and temperature sensitivity, showing potential applications for up-conversion luminescence and optical temperature measurement.
OPTICS COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Junhao Xing, Fei Shang, Guohua Chen
Summary: A novel Yb3+/Er3+ double doped glass ceramic material containing NaSrPO4 nanocrystals was synthesized and systematically studied for its up-conversion optical properties and temperature-sensitive performance. The material exhibited potential as optical temperature sensors based on its maximum relative sensitivity at 298 K and maximum absolute sensitivity at 573 K.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Karina Nigoghossian, Alena N. Kulakova, Gautier Felix, Victor N. Khrustalev, Elena S. Shubina, Jerome Long, Yannick Guari, Saad Sene, Luis D. Carlos, Alexey N. Bilyachenko, Joulia Larionova
Summary: The new luminescent cage-like tetranuclear silsesquioxanes exhibit a tunable thermosensitive Tb3+-to-Eu3+ energy transfer, making them suitable as temperature sensors operating in the range 41-100 degrees C with excellent linearity (R2 = 0.9990) and repeatability (>95%). The maximum relative sensitivity of 0.63% degrees C-1 is achieved at 68 degrees C, demonstrating their effective performance as thermometers.
Article
Physics, Multidisciplinary
Weiyong Liu, Chiaki Ohae, Jian Zheng, Soma Tahara, Masaru Suzuki, Kaoru Minoshima, Hisashi Ogawa, Tetsushi Takano, Masayuki Katsuragawa
Summary: The research team achieved manipulations of phase relationships in nonlinear optical processes and successfully tailored the output energy distribution in a high-order Raman-resonant four-wave-mixing process. This concept enables the development of a single-frequency tunable laser broadly covering the vacuum ultraviolet region, which is attractive for optical technology.
COMMUNICATIONS PHYSICS
(2022)
Article
Spectroscopy
Miaomiao Zhu, Qincan Ma, Ning Guo
Summary: In this study, rare-earth-doped self-activated LiCa3ZnV3O12 (LCZV) vanadate phosphors were prepared and their crystal structure, non-contact temperature sensing, and luminescence properties were deeply studied. The emission of [VO4](3-) group and Eu3+ ions excited by ultraviolet light at 340 nm was monitored. The FIR from Eu3+ to [VO4](3-) exhibited excellent sensitivity performance at 303 K - 523 K. The Eu3+ doped LCZV phosphor not only can be used for high-temperature environmental safety signals but also is an extraordinary viable material in the field of optical sensing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Yuzhen Wang, Chuandong Zuo, Chaoyang Ma, Wanggui Ye, Chong Zhao, Zhe Feng, Yanbin Li, Zicheng Wen, Chong Wang, Xiaofei Shen, Xuanyi Yuan, Yongge Cao
Summary: This work focused on the influences of Sc3+ dopants on the local site symmetry and ligand field of Er3+ activators sensitized by Yb3+ ions in NYTiO4, as well as the up-conversion luminescence performances. The results showed that doping Sc3+ ions could lower site symmetry and change the ligand field around Er3+ ions, affecting the up-conversion luminescence properties. Time-resolved decay curves indicated a significant enhancement in lifetime and luminescence quantum efficiency for green and red emissions due to Sc3+ dopants.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Ronghui Liu, Zonghao Lei, Ruyi Sun, Shikun Su, Yanfei Zou, Lijie Sun, Jingyao Lu, Chen Hu, Bing Teng, Shijia Sun, Degao Zhong
Summary: Fluorescence temperature measurement technology has sparked a new wave of non-contact temperature measurement, but the single-mode thermometry still has a large error. In this study, a dual-mode modulation thermometry based on GaNbO4:Yb3+/Er3+ up-conversion phosphor is achieved in a wide temperature range of 93-633 K, with a maximum relative sensitivity of 11.7% K-1 (93 K) and 13.1% K-1 (123 K). The GaNbO4:Yb3+/Er3+ phosphors were synthesized using the high temperature solid-state method and characterized for their structure, surface morphology, and optical properties. The fluorescence intensity ratio (FIR) readout method based on Er3+ thermal-coupled and non-thermal-coupled energy levels was used for the dual-mode temperature measurement. The results demonstrate the great potential of GaNbO4:Yb3+/Er3+ phosphors in high sensitivity broadband thermometry.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Michele Rosso, Eetu Kohtanen, Alberto Corigliano, Raffaele Ardito, Alper Erturk
Summary: This work investigates the dynamics of a magnetically frequency up-converted piezoelectric energy harvester. The results show that increasing velocity interaction leads to frequency up-conversion and material nonlinearities. The work also proposes a reduced order model that can reliably simulate the magnetic plucking phenomenon.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Multidisciplinary
Thangavel Vijayakanth, Supriya Sahoo, Premkumar Kothavade, Vijay Bhan Sharma, Dinesh Kabra, Jan K. K. Zareba, Kadhiravan Shanmuganathan, Ramamoorthy Boomishankar
Summary: Hybrid materials with both piezoelectric and ferroelectric properties are considered as excellent alternatives to traditional piezoceramics due to their easy synthesis, lightweight nature, ease of fabrication, and mechanical flexibility. In this study, a novel A(3)BX(6) cyanometallate compound was synthesized, which exhibited high ferroelectric saturation polarization, electrostrictive coefficient and electrical performance, and showed good performance in piezoelectric nanogenerators.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Agnieszka Wojciechowska, Jan Janczak, Piotr Rytlewski, Marcin Sarewicz, Ariana C. F. Santos, Ligia Salgueiro, Maria Korabik
Summary: In this study, the self-organization process of the crystal structure of a hexa-coordinated L-argininato copper(II) complex was investigated. The complex showed a monomeric nature and formed two-dimensional layers through hydrogen bonding. Slow magnetic relaxation was observed, and the antimicrobial activity of the complex was evaluated.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Manije Safari, Sima Sedghiniya, Janet Soleimannejad, Jan Janczak
Summary: In recent years, significant progress has been made in controlling the physical properties of metal-organic frameworks (MOFs) through the linker-modulated method. A new barium-organic framework structure, Ba(H2BTC)(2)(H2O)(4)](n), BaBTC, is introduced to probe the coordination strategy and growth orientation of an alkaline-earth metal organic framework (AEMOF) without sacrificing phase purity, porosity, and crystallinity. The modulator effect of various amino acids on the particle size and morphology of BaBTC is investigated. Additionally, another new MOF, Ba(BTC)(2)(H2O)(3)]n.nH(2)O, BaBTC-2, is synthesized by changing the ligand concentration. This research provides a successful example of modulating AEMOF synthesis using amino acids, which could contribute to future nanomaterial synthesis.
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS
(2023)
Article
Chemistry, Applied
Mahnaz Najafi, Jan Janczak
Summary: Designing multifunctional catalysts for one-pot organic transformations is of great importance for economic and environmental reasons. In this study, a novel coordination polymer with bifunctional acid-base sites was prepared and characterized. The material exhibited good activity and structural stability as a heterogeneous catalyst for a specific reaction.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Aleksandra J. Dyba, Ewa Wiacek, Maciej Nowak, Jan Janczak, Karol P. Nartowski, Doris E. Braun
Summary: This study elucidated the key features of metronidazole cocrystal polymorphs with gallic acid and gentisic acid. The researchers controlled the polymorphic behavior through solvent-mediated phase transformation experiments and investigated the feasibility of electrospraying and spray drying techniques. The results provided insights into the transition behaviors and identified molecular electrostatic potential calculations as a supportive tool for coformer selection.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Physical
Badri Z. Momeni, Nastaran Fathi, Maryam Kharradpour, Abbas Biglari, Jan Janczak, Reihaneh Samei
Summary: Three diorganotin (IV) compounds with the general formula [SnMe2(NCS)2(NN)] have been synthesized and characterized. The complexes [SnMe2(NCS)2(Me2bpy)] (1), [SnMe2(NCS)2(phendione)] (2), and [SnMe2(NCS)2(4,4'-bpy)] (3) were synthesized by the reaction of SnMe2(NCS)2 with corresponding diimine ligands. NMR data reveals that 1-3 persists as the hexacoordinated dimethyltin(IV) complexes in solution. The X-ray single crystal investigation of [SnMe2(NCS)2(Me2bpy)] (1) exhibits structural phase transition during the cooling from RT (295 K) to LT (100 K).
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Shradha Lakhera, Meenakshi Rana, Kamal Devlal, N. Kanagathara, Jan Janczak
Summary: This study used density functional theory (DFT) to develop the photovoltaic utility of 2,9-dimethyl quinacridone (2,9-DMQA). Structural analysis and various calculations were conducted to understand the molecule's characteristics and properties. The results showed that the title molecule exhibited strong charge conduction ability and had potential applications in dye-synthesized solar cells and organic photovoltaic cells.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Swati Deswal, Rishukumar Panday, Dipti R. Naphade, Pierre-Andre Cazade, Sarah Guerin, Jan K. Zareba, Alexander Steiner, Satishchandra Ogale, Thomas D. Anthopoulos, Ramamoorthy Boomishankar
Summary: Cyclophosphazenes have been found to be a versatile platform for various functional systems, and this study reports the first supramolecular ferroelectric compound based on an organophosphazene. The compound exhibits multiaxial polarization and shows potential for piezoelectric energy harvesting applications. The high performance of the compound is attributed to the flexible layered supramolecular assembly, which allows for mechanical stress-induced distortions.
Article
Spectroscopy
Elizaveta F. Petrusevich, Marta Glodek, Magda A. Antoniak, Tadeusz Muziol, Damian Plazuk, Agnieszka Siomra, Marcin Nyk, Borys Osmialowski, Robert Zalesny
Summary: In this study, the symmetry relaxation effects on one- and two-photon absorption spectra of two bichromophore systems were investigated. The results showed that the planarity and deviations from planarity of the biphenyl moiety affected the two-photon transition strengths. Additionally, the perpendicular arrangement of phenylene units in the biphenylene moiety led to a decrease in two-photon transition strengths. The difference in two-photon absorption cross section between the two compounds was attributed to differences in equilibrium geometry.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Multidisciplinary Sciences
Ayda Sheykhi, Ali Akbar Khandar, Jan Janczak, Mojtaba Amini
Summary: A newly isolated binuclear nickel(II) complex, [Ni-2(en)(4)(ox)](ClO4)(2), has been determined to have a crystal structure using X-ray crystallography and infra-red techniques. This complex was successfully used as a catalyst for the one-pot reaction of aldehydes, amines, and acetylenes, resulting in the construction of propargylamines with high yields under solvent-free conditions. Further studies showed that this catalytic system could be reused for five runs.
Article
Spectroscopy
Lucyna Dyminska, Jerzy Hanuza, Jan Janczak, Maciej Ptak, Rados law Lisiecki
Summary: In this study, the herbicides azafenidin and flumetsulam were characterized using IR, Raman, UV-Vis, and emission spectroscopy. The triazolopyridine component, which is the most prominent and active ingredient in these herbicides, was characterized using XRD, FTIR, Raman, UV-Vis, and emission spectra. Comparison was made between the experimental data and the results of DFT quantum chemical calculations to analyze the characteristics of the triazolopyridine component in the studied herbicides.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Materials Science, Multidisciplinary
Rafal Kosman, Dominika Wawrzynczyk, Marcin Nyk, Miroslawa Pawlyta, Oleksii Bezkrovnyi, Bartlomiej Cichy
Summary: This study investigates the enhancement of nonlinear optical absorption in AgInS2 quantum dots through the doping of Zn2+, Cd2+, and Hg2+ ions. The nonlinear refraction and absorption of the doped quantum dots were measured using the Z-scan technique. The results show that Cd2+ and Hg2+ doping have a greater impact on the enhancement of two-photon and three-photon absorption cross sections compared to Zn doping.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
K. Roleder, G. Catalan, A. M. Glazer, J. S. Baker, J. -H. Ko, F. H. Naqvi, S. B. Junaid, A. Majchrowski, Z. Trybula, J. Zareba, I. Lazar, D. Kajewski, J. Koperski, A. Soszynski
Summary: We have discovered a low-temperature polar phase in PbZrO3 below 270 K. The temperature dependence of polarization was determined by measuring pyroelectric current changes after poling the single crystal or ceramic in a DC electric field. This phenomenon was observed in both single crystals and ceramics, which may be related to the presence of polar (ferrielectric) antiphase boundaries within the antiferroelectric phase. The transition point was confirmed by changes in domain structure and anomalies in dielectric permittivity and losses in naturally grown single crystals and ceramic samples.
Article
Chemistry, Physical
Marta Gordel-Wojcik, Magdalena Malik, Agnieszka Siomra, Marek Samoc, Marcin Nyk
Summary: In this study, wide spectral measurements of the nonlinear optical properties of silver sulfide quantum dots in aqueous solutions were conducted using the Z-scan technique. The relationship between the properties of the quantum dots and the variation of the material that covers their surface was also evaluated. The study identified various nonlinear optical effects, including two-photon absorption and nonlinear refraction.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Patryk Falat, Min Ying Tsang, Irena Maliszewska, Szymon J. Zelewski, Bartlomiej Cichy, Tymish Y. Ohulchanskyy, Marek Samoc, Marcin Nyk, Dominika Wawrzynczyk
Summary: In this study, an optically triggered anti-microbial treatment based on visible to ultraviolet up-conversion emission in lanthanide-doped yttrium silicates was enhanced. The synthesized powders showed up-conversion emission lines in both UVA and UVC regions, which were effective for decontamination purposes. The use of combined UVA and UVC irradiation generated by Pr3+ and Tm3+ co-doped phosphors demonstrated higher deactivation efficiency for pathogenic microorganisms.
MATERIALS ADVANCES
(2023)
