Article
Chemistry, Multidisciplinary
Meiling Li, Guojian Ren, Weiting Yang, Yonghang Yang, Weikang Yang, Yan Gao, Pengfei Qiu, Qinhe Pan
Summary: HNU-49, a tetraphenylethylene-based MOF, exhibits interesting piezofluorochromic behavior and can successfully encapsulate Rhodamine B to emit dual-emission light. The combination of host-guest interaction and piezofluorochromism can precisely modulate luminescence to achieve near white-light emission.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Qianqian Yin, Xinyue Sun, Kun Dong, Xingmei Lu, Fan Yang, Xiaojiao He, Shengnan Zhong, Yanyan Diao, Yibo Wang
Summary: In this study, dual-emitting lanthanide metal-organic complexes were prepared using Bronsted acidic ionic liquids (ILs) under solvothermal conditions. The crystal structures and growth process of the complexes were studied, revealing three-dimensional supramolecular structures built by Ln-O coordination bonds and supramolecular forces. The complexes exhibited temperature-dependent emission properties with high thermal sensitivities and linear ratiometric emission-temperature responses. Computational studies validated the energy transfer efficiency and fluorescence properties of the ILs. The findings suggest potential applications of ILs in optical sensing.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Environmental
Paulina Bolek, Justyna Zeler, Carlos D. S. Brites, Joanna Trojan-Piegza, Luis D. Carlos, Eugeniusz Zych
Summary: The study focuses on Y3(Al,Ga)5O12:0.1%Pr phosphors with controlled Ga:Al composition to deliberately affect their luminescent properties. Results show that by tailoring the energy barrier for thermal quenching, the thermometric parameters of these phosphors can be fine tuned to cover a wider temperature range with higher relative sensitivity and lower temperature uncertainty. The relative temperature error between calculated and measured temperatures should also be considered when evaluating the performance of the thermometers.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biophysics
Jie Chi, Yanyan Song, Liang Feng
Summary: Ratiometric fluorescent sensors with built-in self-calibration characteristics can suppress interference and exhibit higher sensitivity and more obvious visual detection in qualitative and quantitative analysis. In this study, a ratiometric fluorescence probe based on fluorescent/colorimetric dual-mode method was constructed for the accurate determination of arginine. The practicality of the sensor was successfully validated by quantitative detection of arginine in human serum. Furthermore, paper-based sensors were developed for arginine detection, providing a convenient and efficient method for on-site detection.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Min Peng, Anna M. Kaczmarek, Kristof Van Hecke
Summary: In this study, various sizes of gamma-cyclodextrin metal-organic frameworks (gamma-CD-MOFs) were designed and used as platforms for dye encapsulation, resulting in the development of the first CD-MOF-based ratiometric optical thermometer materials. Promising results were obtained using a dye combination of rhodamine B (RhB) and fluorescein (FL), with high relative sensitivities observed in the gamma-CD-MOF materials. Furthermore, a simple and effective method for preparing core-shell gamma-CD-MOFs was developed, allowing for better control of the shell growth and improved efficiency of the developed thermometers.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Hao Chen, Yishuo Sun, Meihui Liu, Fuyou Li, Qian Peng, Hui Huang
Summary: In this study, a series of chromone derivatives with noncovalently intramolecular interactions (NIIs) were designed and synthesized for ratiometric thermometers. By regulating the conformation with NIIs, the triplet states of these organic compounds were systematically tuned to achieve efficient room temperature phosphorescence and a large wavelength difference between fluorescence and phosphorescence. Based on the intensity ratio and lifetime ratio of fluorescence/phosphorescence vs temperature, an unprecedented organic 3D dual-ratiometric thermometer was established for highly accurate in vitro and in vivo biothermometry. This work provides a novel method to achieve organic dual ratiometric thermometers by tuning the triplet excited states.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Ilya E. Kolesnikov, Daria Mamonova, Mikhail A. Kurochkin, Vassily A. Medvedev, Gongxun Bai, Tatiana Yu Ivanova, Evgenii Borisov, Evgenii Yu Kolesnikov
Summary: Crystalline inorganic nanoparticles doped with rare earth ions have unique spectroscopic properties and are widely used in scientific and industry applications. This study focuses on single phase YVO4 nanoparticles doped with different pairs of rare earth ions for contactless ratiometric thermometry within a wide temperature range. The dual luminescence centers in the optical thermometer allow for higher sensitivity and resolution compared to thermometers based on thermally coupled levels.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Chang Wang, Yu-Zhe Chen, Qing-Zheng Yang, Chen-Ho Tung, Da-Yong Wu, Li-Zhu Wu
Summary: A covalently encapsulated dual-dye silica nanoprobe was reported for ratiometric hypoxia detection and imaging, achieving high phosphorescence brightness, long lifetime, and excellent stability. The nanoprobe can respond to different oxygen levels in both solution and living cells with impressive sensitivity and stability.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Applied
Caicai He, Haihuan Yu, Jing Sun, Cheng Zhou, Xiao Li, Zhong-Min Su, Fangbin Liu, Vyacheslav Khakhinov
Summary: This research encapsulates organic fluorescent dyes in metal-organic frameworks, overcoming the quenching of fluorescence caused by aggregation in solids and demonstrating both the luminescence of the framework and the dye molecules. It also shows potential applications in temperature sensing and white light emission.
Article
Chemistry, Inorganic & Nuclear
Qian Sun, Xin Sui, Qin-Yu Zhu, Shan -Shan Zhu, Xu-Sheng Gao, Xiao-Ming Ren
Summary: In this study, a stable MOF solid solution, Eu0.05Y0.95-PTC, was synthesized and used to prepare temperature-sensitive Eu0.05Y0.95-PTC@PVA hydrogels with excellent mechanical performance. Both the solid solution and hydrogel showed temperature sensing capabilities and good recyclability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Yuanbo Yang, Panlai Li, Zixuan Zhang, Zhijun Wang, Hao Suo, Leipeng Li
Summary: Rational design of single-band ratiometric (SBR) thermometers has gained significant attention, but the intensity of the excited state absorption mechanism is often unsatisfactory. In this study, a novel SBR temperature measurement method relying on Sm3+-doped calcium tungstate is proposed, featuring opposite responses of charge-transfer and ground-state absorption mechanisms to temperature changes. The relative sensitivity can be flexibly modulated by adjusting excitation modes, with a maximum relative sensitivity of 1.98% per K at 318 K.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Ming Zheng, Liang Li, Dan Tian, Zhihui Zhang, Weiyou Zhou, Mingyang He
Summary: Metal-organic frameworks (MOFs) provide a powerful platform for tuning the luminescence characteristics of guests. This study demonstrates a significant change in the luminescence of dye excimers encapsulated in MOFs, with polar dyes showing red-shifted excimer emissions and nonpolar dyes showing different excimer emissions. The excimer emissions tailored by MOFs also exhibit strong thermal quenching. A ratiometric temperature sensor based on a MOF encapsulating two luminescent dyes is prepared and shows sensitivity within the temperature range of 278-353 K. This work provides insights for luminescence tuning in MOFs and the design of sensitive ratiometric thermometers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yuming Zhao, Rudie Zhang, Cheng Xiao, Dan Yue, Bowen Qin, Jinhui Liu, Zhenling Wang, Yu Fu
Summary: A ratiometric fluorescent sensor based on excited-state proton transfer (ESPT) has been developed using a Tb-based metal organic framework (MOF, Tb-DOBDC) as a dual-emission source. The Tb-MOF with an ESPT response allows for the detection of ammonia as a ratiometric fluorescence sensor.
Article
Materials Science, Ceramics
Hui Zhang, Meisong Liao, Yan Jiao, Weichang Li, Hehe Dong, Yongzheng Fang, Weiqing Gao, Lili Hu
Summary: This article introduces a method of temperature measurement using Ca3Y2Ge3O12:Bi3+/Eu3+ luminescent materials. A series of these luminescent materials were manufactured, and their luminescence mechanism and temperature dependence were investigated through emission spectroscopy and decay lifetime characterization. The results showed that these luminescent materials have high sensitivity and excellent signal resolution, making them suitable for various temperature measurement systems.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Wenzhe Xing, Hui Zhou, Jingjing Han, You Zhou, Ning Gan, Jing Cuan
Summary: By utilizing dye encapsulation engineering within a dual-emitting MOF hybrid, researchers have developed a high-quality white-light emitter that can emit light from blue to white to orange. This hybrid demonstrates excellent stability and optoelectronic performance, making it a promising material for applications in displays and solid-state lighting.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Dandan Yu, Wei Zhang, Qi Zhang, Shaoming Huang
Summary: The study constructs high-voltage and stable potassium-based dual-ion batteries (KDIBs) with tellurium-decorated carbon nanosheets as the anode and graphite as the cathode, enabled by high-concentration KFSI electrolytes. The use of KFSI electrolyte enhances the capacity and cyclability of the graphite cathode, while avoiding solvent co-intercalation and improving antioxidation and interphase stability. The Te-graphite KDIBs show a high discharge voltage plateau, high capacity after cycles, and high-power densities, providing important insights for electrolyte design in DIBs.
Article
Chemistry, Physical
Qinghan Zeng, Xin Li, Wei Gong, Sijia Guo, Yuan Ouyang, Dixiong Li, Yingbo Xiao, Chao Tan, Lin Xie, Haibin Lu, Qi Zhang, Shaoming Huang
Summary: Metal-organic frameworks (MOFs) are promising hosts for sulfur in lithium-sulfur batteries (LSBs) due to their ability to confine and trap soluble polysulfides. However, the shuttle effect of polysulfides has not been fully addressed, leading to sluggish redox kinetics and reduced performance. This study demonstrates that a MOF-sulfur copolymer can improve reaction kinetics and reduce the shuttle effect, resulting in increased discharge capacity and decreased decay rate.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Wenchao He, Dixiong Li, Sijia Guo, Yingbo Xiao, Wei Gong, Qinghan Zeng, Yuan Ouyang, Xin Li, Haoyan Deng, Chao Tan, Qi Zhang, Shaoming Huang
Summary: In this study, two halogen-decorated cerium-based MOFs were designed and synthesized, which exhibit excellent performance in ion transport and regulating the formation of solid electrolyte interphase (SEI), leading to enhanced performance of solid-state batteries (SSBs).
ENERGY STORAGE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Weishu Ni, Ke Jiang, Qiaomei Ke, Jia Su, Xianying Cao, Ling Zhang, Chunxia Li
Summary: Chemodynamic therapy (CDT) is a promising approach in cancer treatment, but the lack of smart Fenton catalysts under acidic tumor microenvironments poses a challenge. In this study, a pH-responsive intelligent Fenton nanosystem was developed by constructing a Fe3O4 @MIL-10 0 heterojunction and encapsulating glucose oxidase. The heterojunction significantly reduced the energy barrier of the Fenton reaction, while the encapsulated glucose oxidase activated the starvation therapy process and improved the CDT efficiency. The enhanced CDT also promoted the enzymatic reaction of glucose oxidase. In vitro and in vivo experiments demonstrated the effectiveness and safety of this intelligent Fenton nanosystem for tumor ablation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Yuan Ouyang, Wei Gong, Qi Zhang, Jia Wang, Sijia Guo, Yingbo Xiao, Dixiong Li, Changhong Wang, Xueliang Sun, Chaoyang Wang, Shaoming Huang
Summary: Solid-state batteries (SSBs) offer improved energy density and safety. However, existing solid-state electrolytes (SSEs) face challenges in meeting the operational requirements of SSBs. This study introduces a novel approach using metal-organic frameworks (MOF-BZN) as high-performance SSEs, which exhibit remarkable lithium ion conductivity and high transference number.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wei Gong, Yuan Ouyang, Sijia Guo, Yingbo Xiao, Qinghan Zeng, Dixiong Li, Yufeng Xie, Qi Zhang, Shaoming Huang
Summary: Despite the potential of solid-state batteries (SSBs) in terms of safety and energy density, current solid-state electrolytes (SSEs) are inadequate. In this study, a covalent organic framework (COF) with multi-cationic molecular chains (COF-MCMC) was developed as an efficient SSE. The COF-MCMC demonstrated a Li+ conductivity of 4.9x10(-4) S cm(-1) and a Li+ transference number of 0.71 at 30°C, leading to an excellent specific energy density of 403.4 Wh kg(-1) in SSBs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Haoyan Deng, Jia Wang, Yuan Ouyang, Dixiong Li, Yingbo Xiao, Qi Zhang, Shaoming Huang
Summary: A synergistic system composed of 2D conductive Ni3(HITP)2 MOF and TiO2 was developed to improve the electron-hole separation efficiency and active centers for photocatalytic hydrogen evolution. The Ni3(HITP)2/TiO2 heterostructure demonstrated enhanced charge separation and transfer efficiency in photoelectrochemical experiments. The Ni3(HITP)2 also acted as a co-catalyst, providing reactive sites for hydrogen reduction.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Juan Du, Yun-Fan Li, Chang-Hua Ding
Summary: Palladium-catalyzed cycloaddition reactions using Pd-p-allyl zwitterions are significant synthetic transformations for the construction of carbon- or heterocycles compounds found in biologically active natural products and pharmaceuticals. Recent studies have explored new applications of previously less-studied Pd-p-allyl zwitterions and designed impressive novel zwitterions, which are diverse and highly reactive intermediates for the synthesis of complex polycyclics and medium-sized cyclic compounds.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Sijia Guo, Yingbo Xiao, Alexey Cherevan, Dominik Eder, Liangliang Xu, Qinghan Zeng, Yuan Ouyang, Qi Zhang, Shaoming Huang
Summary: Metal-organic frameworks (MOFs) have the potential to promote the redox reaction of sulfur species (RRS) and suppress the shuttle effect in lithium-sulfur batteries (LSBs). However, most MOFs are inert in accelerating RRS due to the lack of exposed polar catalytic sites. In this study, a universal strategy is proposed to modify MOFs and expose catalytic metal clusters, resulting in vastly improved performance of LSBs.
Review
Chemistry, Inorganic & Nuclear
Bingquan Chen, Ling Zhang, Ke Jiang
Summary: In addition to drugs, natural compounds such as functional food factors have shown great potential for cancer therapy. However, their limited half-life, easy decomposition, and lack of targeting hinder their further development. Metal-organic frameworks (MOFs), a new type of porous crystalline materials, have wide applications in the biomedical field due to their pre-functional design and post-functional modification capabilities. This mini-review summarizes recent research progress on combining MOFs with natural compounds for anti-cancer performance, providing new insights for future biomedical research.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2023)
Article
Chemistry, Multidisciplinary
Qinghan Zeng, Liangliang Xu, Guanxing Li, Qi Zhang, Sijia Guo, Haibin Lu, Lin Xie, Junhua Yang, Jingqia Weng, Cheng Zheng, Shaoming Huang
Summary: This study proposes a strategy of integrating sub-nano catalysts into a metal-organic framework (MOF) to address the shuttle effect and sluggish redox kinetics in lithium-sulfur batteries (LSBs). The designed MOF host, MOF-TOC, with sub-nano Ti-O clusters (TOCs), acts as an efficient reaction chamber in the LSBs. The electrochemical tests and calculations demonstrate that MOF-TOC can effectively trap and confine lithium polysulfides (LiPSs) and accelerate the bidirectional redox reactions of sulfur species through the interaction with TOCs. The use of MOF-TOC significantly improves the areal capacity and cycling stability of LSBs at high sulfur loadings and lean electrolytes. This work provides insights into the rational design of catalyst-containing MOF hosts and advances the development of high-performance LSBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Dan Yue, Zhangjian Li, Dong Chen, Weidong Li, Bowen Qin, Bing Zhang, Yanping Li, Dian Zhao, Zhenling Wang
Summary: A mixed lanthanide metal-organic framework was synthesized and found to exhibit excellent temperature sensing properties, making it suitable for use as a luminescent thermometer.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Physical
Xin Li, Yingbo Xiao, Qinghan Zeng, Liangliang Xu, Sijia Guo, Cheng Zheng, Qi Zhang, Shaoming Huang
Summary: This study found that the use of PCN-222(Cu)-NS catalyst can effectively increase the discharge capacity of lithium-sulfur batteries and slow down the rate of capacity decay, as its d-p orbital hybridization with sulfur species is most effective in promoting LiPSs conversion and suppressing shuttle effect.
Article
Chemistry, Multidisciplinary
D. Li, Y. Ouyang, H. Lu, Y. Xie, S. Guo, Q. Zeng, Y. Xiao, Q. Zhang, S. Huang
Summary: A multifunctional artificial protective layer (APL) based on metal-organic frameworks (MOFs) was designed to stabilize zinc anodes in aqueous rechargeable Zn metal batteries. The APLs with more Lewis base chemical groups exhibited improved abilities in trapping, transporting, and desolvating Zn2+, as well as regulating pH values and decreasing side reactions, leading to suppressed dendrite growth. The UiO-66-2COOH APL showed the best performance in regulating Zn2+ deposition and achieved excellent cycling performance.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Ziqi Zhou, Qiaomei Ke, Manni Wu, Ling Zhang, Ke Jiang
Summary: Metal-organic frameworks (MOFs) are efficient carriers for controlled drug delivery due to their large surface area and adjustable pore size. A new approach called Pore Space Partition (PSP) was used to effectively encapsulate and pH-controlled co-delivery of two guest molecules. ZIF-8's pore space was partitioned by encapsulating the large molecule ursolic acid (UA), and the remaining space was filled with the small molecule 5-fluorouracil (5-FU). This approach resulted in a high loading capacity of UA (12.80 wt %) and 5-FU (11.20 wt %) in the 5-FU&UA@ZIF-8. This smart carrier exhibited pH-controlled delivery of UA and surprisingly showed pH-responsive delivery of 5-FU after pore space partition. The co-delivery of 5-FU and UA demonstrated excellent anticancer performance against 4T1 cells.
ACS MATERIALS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
