Article
Chemistry, Multidisciplinary
Moon Chul Jung, John Facendola, Jongchan Kim, Daniel Sylvinson Muthiah Ravinson, Peter Djurovich, Stephen R. Forrest, Mark E. Thompson
Summary: The orientation of facial tris-cyclometalated iridium complexes in doped films can be controlled by altering the physical shape and electronic asymmetry in the molecular structure. Oblate iridium complexes have a net horizontal alignment in the thin films due to favorable van der Waals interaction with the host material, while chemical asymmetries introduced by substituents affect the oblate shapes and orientation of the molecules. The fluorinated patches in the substituted derivatives reinforce horizontal alignment during deposition, resulting in improved efficiency in organic light emitting diodes.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Kirill M. Kuznetsov, Ilya S. Kritchenkov, Julia R. Shakirova, Vladislav V. Gurzhiy, Vladimir V. Pavlovskiy, Vitaly V. Porsev, Viktor V. Sokolov, Sergey P. Tunik
Summary: Nine novel heteroleptic Ir(III) complexes were synthesized, with six of them displaying phosphorescence in the deep red and NIR regions. The variation in orthometalating ligands resulted in dramatic changes in photophysical behavior, affecting the emission characteristics of the compounds.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Chao Shi, Hong Huang, Qiuxia Li, Jingwen Yao, Cuicui Wu, Yibo Cao, Fangxiang Sun, Dongge Ma, Hong Yan, Chuluo Yang, Aihua Yuan
Summary: The study describes a novel strategy towards a series of charged ligand-based neutral iridium(III) complexes with adjustable color emission from blue-green to near-infrared. These complexes show excellent chemical and thermal stability, making them suitable for OLED devices with high external quantum efficiency, low efficiency roll-off, and turn-on voltage. This research provides new opportunities for optoelectronic applications of novel phosphorescent iridium(III) complex materials with tunable properties.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sangdong Kim, Jae-Min Kim, Jongwon Choi, Myungsun Sim, Yasushi Koishikawa, Yong-Suk Cho, Sungjun Kim, Seung-Yeon Kwak, Aram Jeon, Ohyun Kwon, Duck-Hyung Lee, Jun Yeob Lee, Byungki Choi
Summary: The horizontal orientation of the transition dipole moment plays a crucial role in improving the external quantum efficiency (EQE) of organic light-emitting diodes. In this study, red-emitting heteroleptic iridium (III) complexes with a high horizontal ratio of emitting dipole orientation (EDO) and photoluminescence quantum yield (PLQY) were reported, leading to enhanced device performance and longer operational lifetime. This approach opens up possibilities for further development of red-emitting iridium complexes to achieve higher device efficiencies.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Sophie A. Fitzgerald, Ellie N. Payce, Peter N. Horton, Simon J. Coles, Simon J. A. Pope
Summary: This study describes the synthesis and characterisation of eleven different 2-(thienyl)quinoxaline species with various functionalities. These species exhibit variable fluorescence properties in the visible region and can serve as cyclometalating agents for Ir(III) to form luminescent complexes.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Youming Zhang, Hao-Che Kao, Chao Shi, Chengjun Wu, Minrong Zhu, Kai Li, Chung-Chih Wu, Chuluo Yang
Summary: A series of iridium(III) complexes based on [-2, -1, 0] charged ligands were designed and synthesized with excellent thermal stability and deep red/near infrared emission. By introducing electron-donating or -withdrawing groups, the photophysical properties of these complexes were improved, leading to organic light-emitting diodes with acceptable external quantum efficiency and low turn-on voltage. This work provides new opportunities and challenges for the optoelectronic applications of iridium(III) emitters with different valence states.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Changfeng Si, Tao Wang, Abhishek Kumar Gupta, David B. Cordes, Alexandra M. Z. Slawin, Jay S. Siegel, Eli Zysman-Colman
Summary: Corannulene-derived materials have been extensively studied in energy storage and solar cells. However, their potential as emitters in light-emitting sensors and OLEDs has been largely unexplored. In this study, a family of multi-D-A motifs, TCzPhCor, TDMACPhCor, and TPXZPhCor, were developed by using corannulene as the acceptor and different donors. These materials exhibit multiple phosphorescence and show promise in temperature sensing and OLED applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Biochemistry & Molecular Biology
Leonid N. Bochkarev, Yulia P. Parshina, Yana Gracheva, Tatyana A. Kovylina, Svetlana A. Lermontova, Larisa G. Klapshina, Aleksey N. Konev, Mikhail A. Lopatin, Maria M. Lukina, Anastasia D. Komarova, Vladislav Shcheslavskiy, Marina Shirmanova
Summary: New water-soluble polynorbornenes containing luminophoric complexes of iridium(III) were synthesized, showing intense photoluminescence and non-toxic properties in biological testing. These polymers have potential for assessing oxygen levels in biological tissues.
Article
Biochemistry & Molecular Biology
Mirko Maturi, Chiara Spanu, Andrea Baschieri, Mauro Comes Franchini, Erica Locatelli, Letizia Sambri
Summary: This paper presents a method to covalently link a luminescent Ir-complex onto the surface of MCC, which represents the first incorporation of an organometallic luminescent probe in this biomaterial. The method is easy and sustainable, using a Bronsted-acid ionic liquid as a catalyst. The obtained luminescent cellulose microcrystals exhibit high and stable emissions and maintain their luminescent properties in dry and wet matrices.
Article
Energy & Fuels
Zhao-Yi Wang, Hao Zeng, Lin-Xi Shi, Li-Yi Zhang, Liang-Jin Xu, Jin-Yun Wang, Zhong-Ning Chen
Summary: In this study, two yellow-emitting PtAg2 heterotrinuclear complexes were reported, with complex 2 showing significantly enhanced device performance when containing dTolmp as the supporting ligand. The improved performance includes higher current efficiency and external quantum efficiency, as well as better color saturation of yellow emission.
Article
Chemistry, Applied
Rubing Bai, Pei Wang, Xianwen Meng, Lei He
Summary: By controlling the oxadiazole/triazine type counter-anions, sky-blue-emitting cationic iridium complexes with electron-trapping effects have been developed for highly efficient solution-processed organic light-emitting diodes (OLEDs). These complexes exhibit significant enhancement in device performance compared to the reference complex, with the highest peak current efficiency and external quantum efficiency reported for blue OLEDs using cationic iridium complexes.
Article
Nanoscience & Nanotechnology
Jia-Xun Xie, Chih-Chien Lee, Lin-Ming Huang, Huang-Teng Lin, Dian Luo, Chung-Hung Hsieh, Shun-Wei Liu, Chih-Hsin Chen
Summary: In this work, three positional isomeric cyano-substituted Ir complexes were reported. It was found that the introduction of cyano substitution at various positions allows for tuning the electron distribution and coordination bond length, enhancing the charge transfer property. These cyano-substituted Ir complexes exhibited high PLQYs and phosphorescence lifetime in the yellow to red region, and showed high external quantum efficiency and brightness in practical devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Applied
Mingxing Tian, Renyou Yu, Mengzhen Chen, Lei He
Summary: This study introduces efficient fluorine-free, blue-emitting cationic iridium complexes for OLED applications. The complexes exhibit high phosphorescent efficiencies and pure blue color in both solution and doped films. They show potential for use in optoelectronic devices due to their high-performance blue emission properties.
Article
Chemistry, Inorganic & Nuclear
Wen-Jing Xiong, Xiao-Bin Zhang, Shao-Bin Dou, Zhe-Ming Quan, Dao-Wei Li, Zhi-Gang Niu, Gao-Nan Li
Summary: A series of new heteroleptic iridium(III) complexes have been synthesized and characterized, showing green-red emissive properties with absolute quantum yields of 0.5-2.9% and lifetimes of 0.21-0.62 μs in solution at room temperature. The crystal structures of select complexes were determined to have intermolecular pi pi interactions, and theoretical calculations suggest the emission can arise from charge transfer processes.
INORGANICA CHIMICA ACTA
(2022)
Article
Chemistry, Physical
Kiun Cheong, Unhyeok Jo, Wan Pyo Hong, Jun Yeob Lee
Summary: A blue tetradentate Pt(II) complex named Pt-tmCyCz is developed by introducing a cycloalkyl unit fused to carbazole to improve the rigidity and bulkiness of the complex. The complex exhibits high external quantum efficiency, narrow full width at half maximum, and stable spectrum in OLEDs.
Review
Biotechnology & Applied Microbiology
Zhenting Wei, Xiaowen Wang, Huhu Feng, Fanpu Ji, Dan Bai, Xiaoping Dong, Wei Huang
Summary: This article systematically analyzed the recent advances in isothermal nucleic acid amplification tests (INAAT) and provided practical case examples for virus detection applications. The characteristics that make INAAT systems useful for diagnosis relevant decisions were compared through the evaluation of key performance indicators and cost-effectiveness of different methods. This review is important for bridging the knowledge gap between researchers and clinical practitioners when choosing suitable test kits and methods for rapid virus detection.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2023)
Article
Engineering, Environmental
Xuemei Zeng, Yihang Ruan, Qi Chen, Shuangqian Yan, Wei Huang
Summary: In this work, a Fe2O3/Au hybrid nanozyme was designed and fabricated for the synergistic treatment of triple negative breast cancer. The hybrid nanozyme exhibited cascade catalytic activities and coupling effects, leading to tumor therapy through starvation, cascade catalytic reactions, ferroptosis, and photothermal manners.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Lixuan Hu, Pei Lin Chee, Sigit Sugiarto, Yong Yu, Chuanqian Shi, Ren Yan, Zhuoqi Yao, Xuewen Shi, Jiacai Zhi, Dan Kai, Hai-Dong Yu, Wei Huang
Summary: Flexible electronics is a new and interdisciplinary field of research that involves physics, chemistry, materials science, electronic engineering, and biology. However, the applications of flexible electronics are limited due to certain drawbacks such as high Young's modulus, poor biocompatibility, and poor responsiveness. This article reviews the latest methods of synthesizing advanced functional hydrogels and discusses their applications in flexible electronics. The correlation between hydrogel properties and device performance is also discussed to gain better understanding of the development of flexible electronics using environmentally responsive hydrogels. Additionally, future directions and current challenges in the development of hydrogel-based multifunctional flexible electronics are provided.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Zepeng Wang, Xiaojie Cheng, Yingjie Xie, Shulin Liu, Mengjiao Dong, Jianfeng Zhao, Fushun Liang, Zhongfu An, Wei Huang
Summary: This review summarizes recent work on organic phosphorescence of heterocycles with boron, sulfur, and phosphorus heteroatoms and highlights the significance of the guidelines for constructing efficient phosphorescence molecules.
Article
Chemistry, Multidisciplinary
Tong Tong, Yuquan Gan, Weisheng Li, Wei Zhang, Haizeng Song, Hehe Zhang, Kan Liao, Jie Deng, Si Li, Ziyue Xing, Yu Yu, Yudi Tu, Wenhui Wang, Jinlian Chen, Jing Zhou, Xuefen Song, Linghai Zhang, Xiaoyong Wang, Shuchao Qin, Yi Shi, Wei Huang, Lin Wang
Summary: By utilizing Janus-interface engineering, we designed a two-dimensional hybrid phototransistor that combines light-sensitive perovskite and spontaneously polarized ferroelectric materials, achieving collective ultrasensitive detection performance.
Article
Chemistry, Multidisciplinary
Weiwei Li, Manzhang Xu, Jiuwei Gao, Xiaoshan Zhang, He Huang, Ruoqing Zhao, Xigang Zhu, Yabao Yang, Lei Luo, Mengdi Chen, Hongjia Ji, Lu Zheng, Xuewen Wang, Wei Huang
Summary: A method combining inkjet printing and thermal annealing is reported to directly synthesize large-scale MoS2 patterns. The patterned MoS2 is obtained directly on a polymer substrate through thermal treatment in an atmosphere of argon/hydrogen. This approach is used to manufacture various flexible sensing devices that are insensitive to body motions and moisture.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qizeng Sun, Fei Liang, Guozhang Ren, Linrong Zhang, Shunhao He, Kun Gao, Zhongyan Gong, Yulong Zhang, Xing Kang, Chengcheng Zhu, Yaxin Song, Huixiang Sheng, Gang Lu, Hai-Dong Yu, Wei Huang
Summary: A new type of TENG with conductive materials as triboelectric layers and electrodes is developed, which greatly increases the output current density and can work stably in high-humidity environments. This provides a new and effective strategy for constructing high-performance TENGs.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jiaxin Yang, Ming Feng, Ziyu Chen, Rui Xu, Adnan Khan, Kang Zhang, Dongdong Han, Xu Sang, Jinyue Xie, Lisa Liu, Feng Song, Wei Huang
Summary: This article reports a 3D-printing-compatible approach for constructing special-shaped silica glass components. By optimizing printable silica-polymer slurries, high solid loading and tunable rheological properties are obtained. The effects of heat treatment methods and solid loadings on the vitrification of printed parts are explored. The research confirms the competitiveness of 3D printing in glass forming, as well as the additional benefits of design flexibility and complex geometries.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Multidisciplinary
Xi Xu, Gangwen Fu, Yuxuan Wang, Qinghe Cao, Yanran Xun, Chen Li, Cao Guan, Wei Huang
Summary: A 3D-printed Ni electrode with a designed periodic structure and surface chemistry facilitates rapid bubble generation and emission, yielding a high electrochemically active surface area. By loading with MoNi4 and NiFe layered double hydroxide active materials, the electrode achieves high current densities for hydrogen and oxygen evolution reactions. An all-3D-printed alkaline electrolyzer exhibits stable performance for clean energy production over a long period of time.
Article
Chemistry, Multidisciplinary
Shengjie Wang, Lili Sun, Yingying Zheng, Yahui Zhang, Ningning Yu, Jinghao Yang, Mengyuan Li, Wenyu Chen, Liangliang He, Bin Liu, Mingjian Ni, Heyuan Liu, Man Xu, Lubing Bai, Jinyi Lin, Wei Huang
Summary: Large-area polymer light-emitting diodes (PLEDs) with efficient and stable deep-blue emission are successfully fabricated through encapsulated polydiarylfluorene material. The blade-coated PLEDs exhibit excellent uniformity and morphology, achieving uniform deep-blue emission comparable to spin-coated films. Furthermore, a patterned PLED array with a monochrome display is demonstrated, showing the potential for full-color display applications.
Article
Chemistry, Multidisciplinary
Yuanyuan Li, Yufu Tang, Wenbo Hu, Zhen Wang, Xi Li, Xiaomei Lu, Shufen Chen, Wei Huang, Quli Fan
Summary: A versatile strategy is reported to enhance the fluorescence brightness and photothermal performance of near-infrared (NIR-II) window imaging-guided photothermal therapy probes by fabricating a large pi-conjugated molecule. The newly developed nanoprobe exhibits superior NIR-II imaging effect in vivo and high photothermal tumor inhibition rate, showing potential applications in precise cancer phototheranostics.
Article
Materials Science, Multidisciplinary
Ye Chen, Jing Hua, Yueqing Li, Qi Zhang, He Shao, Wen Li, Haifeng Ling, Xiangxing Xu, Wei Huang, Mingdong Yi
Summary: A p-type synaptic OFET memory with CsPbBr3 quantum dots as nano-floating gates is developed to emulate the excitatory-inhibitory responses of biological synapses. By controlling the offset difference between stimulus voltage and reading voltage, the concurrent and independently expressed excitatory and inhibitory responses are successfully implemented. This reconfigurable modulation is achieved through the dynamic competition between external and built-in electric fields.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Xuewen Shi, Yuewen Wei, Ren Yan, Lixuan Hu, Jiacai Zhi, Biao Tang, Yijia Li, Zhuoqi Yao, Chuanqian Shi, Hai-Dong Yu, Wei Huang
Summary: This study reports a green fabrication method for fish gelatin-based triboelectric nanogenerators (FG-TENGs) inspired by the surface microstructures of natural leaves. By modifying the surface structures of friction pairs, the performance in power generation is improved. The friction pair that mimics the pyramidal microstructures on the surface of the lotus leaf has the highest power generation performance. The FG-TENG can be used for energy harvesting, power supply, and self-powered sensing.
Article
Engineering, Biomedical
Yihang Ruan, Huilan Zhuang, Xuemei Zeng, Lili Lin, Xuechun Wang, Panpan Xue, Shan Xu, Qi Chen, Shuangqian Yan, Wei Huang
Summary: An engineered microbial nanohybrid based on Escherichia coli and Cu2O nanoparticles is designed for tumor-mediated photothermal therapy and immunosuppression reversion in colon tumors. The hybrid accumulates in tumor sites and Cu2O nanoparticles convert to CuxS by consuming H2S, exhibiting strong photothermal conversion in the near-infrared II biological window. Furthermore, the microbial nanohybrid induces cellular ferroptosis and cuproptosis, and reverses immunosuppression in colon tumors.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Junpeng Ji, Biao Yang, Chaohong Zhang, Yulu Cai, Jingwei Chen, Changbin Zhao, Tao Wang, Lijie Wu, Ming Liu, Junwu Bai, Jiangfeng Wang, Zhongbin Wu, Shufen Chen, Haifeng Ling, Zhongfu An, Yonghua Chen, Jianpu Wang, Wei Huang, Hong Meng
Summary: This study demonstrates a new type of organic light-emitting device that integrates emission and control functions, full-color tunability, and a simple device structure. The device utilizes a specially designed electrode structure and can be controlled using a simple binary number coded digital signal.
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)