Article
Nanoscience & Nanotechnology
Alice Sciortino, Francesco Ferrante, Gil Goncalves, Gerard Tobias, Radian Popescu, Dagmar Gerthsen, Nicolo Mauro, Gaetano Giammona, Gianpiero Buscarino, Franco M. Gelardi, Simonpietro Agnello, Marco Cannas, Dario Duca, Fabrizio Messina
Summary: Carbon dots, when coupled with carbon nanotubes, demonstrate stable electronic coupling and efficient photoinduced electron transfer, leading to high degree of charge separation and conduction. These nanohybrids exhibit significant photocatalytic properties, showing promise for applications in artificial photocatalysis and photosynthesis.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Aristotelis P. Sgouros, Charalampos Androulidakis, Georgia Tsoukleri, George Kalosakas, Nikos Delikoukos, Stefano Signetti, Nicola M. Pugno, John Parthenios, Costas Galiotis, Konstantinos Papagelis
Summary: The study demonstrates that embedding few graphene flakes into polymer matrices in a ladder-like morphology allows for significant deformation. This unique architecture prevents interlayer sliding and optimizes strain transfer efficiency, indicating potential for various applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Tahereh Seifi, Ali Reza Kamali
Summary: This paper reports on the antibacterial performance of free standing three-dimensional graphene nanosheets with a high density of graphene edges. The results show that the nanosheets exhibit outstanding antibacterial effect against E. coli at low concentration, efficiently cutting bacterial cells into fragments.
Article
Polymer Science
Gohar Khachatryan, Karen Khachatryan, Joanna Szczepankowska, Marcel Krzan, Magdalena Krystyjan
Summary: The aim of this study was to design nanocomposites using a simple, low-cost and environmentally friendly synthesis method. Carbon nanostructures were used to reinforce the chitosan/alginate bond, improving the mechanical, solubility, water absorption, and UV radiation protection properties. SEM, FTIR, UV-VIS, and color analysis were used to determine the thickness and mechanical properties of the films. The tests showed uniform distribution of nanostructures and no chemical interactions between nanoparticles and polymers. Enrichment of the polysaccharide composite with graphene oxide and carbon nanotubes positively affected its absorption, mechanical capabilities, and color.
Article
Chemistry, Physical
Hua Li, Xiaodong Hu, Yujuan Chen, Huanhuan Li, Guangyue Bai, Kelei Zhuo
Summary: Balancing the energy density and power density of supercapacitors is crucial for expanding their application range. This study demonstrates a feasible approach to achieve this balance through the design and synthesis of hierarchically porous graphene aerogels containing doped-heteroatoms and matching with ionic liquid electrolyte.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Pinky Yadav, Ayana Bhaduri
Summary: Magnesium hydroxide nanoparticles were decorated onto graphene oxide surfaces via a simple chemical precipitation process, and the resulting nanocomposites showed promising photocatalytic performance in degrading organic dyes as pollutants from wastewater. The study analyzed the properties of the prepared samples using various techniques such as FESEM, XRD, FTIR, and UV-Visible spectroscopy, and found that the nanocomposites exhibited good crystal structure and bandgap energy.
Article
Materials Science, Multidisciplinary
Jiyan Xie, Chen Li, Jinan Niu, Shenghui Zhang, Xuemei Ou, Peizhong Feng, Hermenegildo Garcia
Summary: Porous few-layer NiFe-layered double hydroxide/graphene oxide composite electrocatalysts exhibit excellent oxygen evolution reaction performance through optimized ratio, with the PLDH/0.1G0 sample showing superior characteristics compared to commercial IrO2 and pure LDH.
Article
Engineering, Environmental
Keding Li, Ting Xiong, Jun Liao, Yuqing Lei, Yong Zhang, Wenkun Zhu
Summary: With the rapid development of nuclear energy, the pollution of uranium to water has become a major threat to human health. A study found that MXene/graphene oxide nanocomposite (MGN) can effectively remove uranium from water. MGN-2 showed excellent adsorption capacity and stability, making it a potential adsorbent for uranium removal.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
B. R. Sivasankaran, M. Balaji
Summary: Gallium oxide (Ga2O3) nanoparticles were prepared through ultrasonic irradiation and calcination, while Ga2O3/rGO nanocomposites were synthesized by hydrothermal method. The nanocomposites exhibited excellent ammonia sensing response at room temperature.
Article
Engineering, Environmental
Khushbu, Rajeev Jindal
Summary: A promising nanocomposite adsorbent for hazardous dye removal was developed in this research. It can effectively remove both cationic and anionic dyes from wastewater with high adsorption capacity.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Nanoscience & Nanotechnology
Anupam Das, Nilanjan Mukherjee, Tushar Jana
Summary: In this study, graphene oxide (GO) was functionalized by growing polymer chains on its surface to make a highly efficient nanocomposite-based proton exchange membrane (PEM) with oxypolybenzimidazole (OPBI). Three different types of polymer-g-GO, which were pAAM-g-GO, pAMPS-g-GO, and pSPAK-g-GO, were obtained by polymerizing different monomers on the activated GO surface. The effects of grafted polymer structure and chain length on nanocomposite PEM properties were studied. The nanocomposite PEM exhibited excellent thermal stability, improved tensile properties, increased proton conductivity, and superior phosphoric acid (PA) retention. When 2.5 wt% pSPAK-g-GO was mixed with OPBI, the resulting PEM showed significantly enhanced proton conductivity compared to the pristine OPBI membrane. This is the first report on the utilization of polymer-g-GO in polybenzimidazole membranes for high-temperature PEM application.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Xin Kou, Yongpeng Zhao, Lijia Xu, Zhiliang Kang, Yuchao Wang, Zhiyong Zou, Peng Huang, Qianfeng Wang, Gehong Su, Ying Yang, YanMing Sun
Summary: The design of high-performance microwave absorbing materials relies on the structural design of heterostructures and appropriate material compositions. In this study, a composite material consisting of reduced graphene oxide (RGO) and core-shell structured gamma-Fe2O3@C nanoparticles was successfully synthesized. The composite material exhibited multiple electromagnetic dissipation mechanisms and had a wide absorption range.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Chelliah Koventhan, Sabarison Pandiyarajan, Shen Ming Chen, Chelliah Senthamil Selvan
Summary: In this study, a novel supercapacitor material NCO/GO/NF with excellent electrochemical performance was constructed, which is suitable for commercial applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Meng-Yuan Wu, Qing Lou, Guang-Song Zheng, Cheng-Long Shen, Jin-Hao Zang, Kai-Kai Liu, Lin Dong, Chong-Xin Shan
Summary: This research demonstrates the potential of carbon nanodots (CDs) as electromagnetic absorption materials for the first time, achieving excellent performance by adjusting nitrogen doping levels and degree of graphitization, which expands the application fields of CDs.
APPLIED SURFACE SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
P. Mandal, S. K. Ghosh, H. S. Grewal
Summary: This study developed a material with antimicrobial properties by modifying the aluminium surface with a graphene oxide (GO) coating. Experimental results show that the GO coating has significant bactericidal activity and can effectively inhibit bacteria. This research indicates a direction for the fabrication of antimicrobial coatings on material surfaces using a simple, environmentally friendly, cost-effective, and straightforward processing method.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Multidisciplinary
Yao Wang, Chenghao Duan, Xuliang Zhang, Jianguo Sun, Xufeng Ling, Junwei Shi, Long Hu, Zizhen Zhou, Xianxin Wu, Wei Han, Xinfeng Liu, Claudio Cazorla, Dewei Chu, Shujuan Huang, Tom Wu, Jianyu Yuan, Wanli Ma
Summary: All-inorganic CsPbX3 perovskite quantum dots with tunable optical bandgaps and narrow emission peaks have attracted interest in the fields of photovoltaics and light-emitting diodes. The CsPbI3 perovskite QD solar cell, fabricated through a solid-state-ligand exchange process, demonstrates high PV performance and intense electroluminescence. This multifunctional approach using CsPbI3 perovskite QDs shows promise for fabricating optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yong Li, Weidong Xu, Nursultan Mussakhanuly, Yongyoon Cho, Jueming Bing, Jianghui Zheng, Shi Tang, Yang Liu, Guozheng Shi, Zeke Liu, Qing Zhang, James R. Durrant, Wanli Ma, Anita W. Y. Ho-Baillie, Shujuan Huang
Summary: Depositing homologous bromide salts on the perovskite surface can achieve surface and bulk passivation, resulting in solar cells with high open-circuit voltage. This method provides a simple and universal way to reduce the voltage deficit of single-junction perovskite solar cells and has potential applications in other high-performance optoelectronic devices.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Long Hu, Leiping Duan, Yuchen Yao, Weijian Chen, Zizhen Zhou, Claudio Cazorla, Chun-Ho Lin, Xinwei Guan, Xun Geng, Fei Wang, Tao Wan, Shuying Wu, Soshan Cheong, Richard D. Tilley, Shanqin Liu, Jianyu Yuan, Dewei Chu, Tom Wu, Shujuan Huang
Summary: A universal method using halide perovskite quantum dots to improve the performance and stability of polycrystalline perovskite films is proposed in this work. The treated films show suppressed light-induced phase segregation and degradation, with significantly improved efficiency.
Article
Chemistry, Physical
Zhilong Zhang, Jooyoung Sung, Daniel T. W. Toolan, Sanyang Han, Raj Pandya, Michael P. Weir, James Xiao, Simon Dowland, Mengxia Liu, Anthony J. Ryan, Richard A. L. Jones, Shujuan Huang, Akshay Rao
Summary: This study reveals the exciton dynamics in quantum dot solids using transient absorption microscopy and observes the changes and transitions in initial exciton diffusion. The spacing between quantum dots, packing density, and heterogeneity all have an impact on exciton dynamics. These findings contribute to the control of optoelectronic properties in quantum dot solids.
Article
Energy & Fuels
Samira Garshasbi, Shujuan Huang, Jan Valenta, Mat Santamouris
Summary: This study proposes a mathematical method to predict the fluorescent cooling indicators of QDs coatings and evaluates their potential for cooling. The experimental results show that QDs coatings have a significant cooling potential. This study is important for research on fluorescent cooling.
Article
Chemistry, Multidisciplinary
Qiang Tang, Zhibin Hu, Xiaxia Cui, Zechao Tao, Jau Tang
Summary: By introducing a ceramic tube, a water vapor electrodeless microwave plasma device is proposed to avoid the corrosion of metal electrodes. The device can work directly with liquid water without complex evaporation equipment. The study found that when the microwave power is greater than 800 W, the plasma torch can be excited permanently and stably without loss of ceramic. Optical spectroscopy confirmed the generation of oxygen atom, hydroxyl radical, and hydrogen atom during the decomposition of water vapor. The microwave discharge also improved the crystallinity of the ceramic. This work enriches the microwave plasma techniques for water vapor and has various applications in electric propulsion, hydrogen production, and surface treatment.
APPLIED SCIENCES-BASEL
(2022)
Editorial Material
Chemistry, Physical
Jianghui Zheng, Guoliang Wang, Weiyuan Duan, Md Arafat Mahmud, Haimang Yi, Cheng Xu, Andreas Lambertz, Stephen Bremner, Kaining Ding, Shujuan Huang, Anita W. Y. Ho-Baillie
Summary: Here we present a monolithic perovskite-perovskite-silicon triple-junction tandem solar cell with high efficiency (over 20%), open-circuit voltage of 2.74 V, and fill factor of 86%, which are the highest values reported for perovskite-based double or triple-junction tandems to date. This concept and design is a significant milestone towards low-cost triple-junction tandem photovoltaics.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Jianguo Sun, Bin Li, Long Hu, Junjun Guo, Xufeng Ling, Xuliang Zhang, Chi Zhang, Xianxin Wu, Hehe Huang, Chenxu Han, Xinfeng Liu, Youyong Li, Shujuan Huang, Tom Wu, Jianyu Yuan, Wanli Ma
Summary: Solution processable semiconductors like organics and emerging lead halide perovskites (LHPs) are ideal candidates for photovoltaics. This study investigates a novel device architecture involving block copolymer/perovskite hybrid bulk heterointerfaces, which enhances light absorption, energy level cascade, and provides a thin hydrophobic layer to improve carrier generation and prevent moisture invasion. The resulting hybrid solar cell exhibits high efficiency and stability, and the approach can be extended to other LHPs.
ADVANCED MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Sheyda Mirjalali, Arezo Mahdavi Varposhti, Shayan Abrishami, Roohollah Bagherzadeh, Mohsen Asadnia, Shujuan Huang, Shuhua Peng, Chun-Hui Wang, Shuying Wu
Summary: Wearable sensors and energy harvesters have great potential in personalized healthcare, robotics, and human-machine interfaces. Piezoelectric materials, known for their ability to harvest energy, have been extensively studied in this field. This review provides an overview of recent advances in enhancing the piezoelectricity of electrospun polymer nanofibers, discussing challenges and effective approaches to achieve high-performance piezoelectric sensors and energy harvesters for wearable technologies.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Jau Tang, Qiang Tang, Z. B. Hu
Summary: This study presents a dual-component model to analyze the quantum dynamics of relativistic particles and investigates the modulation of matter waves' phase and amplitude caused by Heisenberg's uncertainty principle. Simulation results indicate that mass oscillations are more prominent for light-weighted elementary particles. An interference experiment using neutrinos and electrons is proposed to test the predicted behaviors.
SCIENTIFIC REPORTS
(2022)
Article
Physics, Applied
Binesh Puthen Veettil, Yuchao Zhang, David Payne, Mattias Juhl, Shujuan Huang, Brett Hallam, Darren Bagnall
Summary: Microwave annealing, despite being poorly researched and underutilized in the semiconductor industry, possesses the potential to significantly reduce time and cost in large-volume semiconductor processing, specifically in the manufacturing of photovoltaic modules. This study examines microwave annealing of silicon solar cells, demonstrating its capability for efficient passivation of light-induced defects and mitigating light-induced degradation. Results indicate that microwave annealing produces comparable outcomes to rapid thermal annealing.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Sheyda Mirjalali, Roohollah Bagherzadeh, Shayan Abrishami, Mohsen Asadnia, Shujuan Huang, Aron Michael, Shuhua Peng, Chun-Hui Wang, Shuying Wu
Summary: A new method of enhancing the piezoelectricity of PVDF nanofiber mats by electrospraying zinc oxide (ZnO) nanoparticles between layers of PVDF nanofibers is demonstrated. This approach results in multilayered PVDF+ZnO nanofiber mats with significantly increased piezoelectricity.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Ling Tong, Deshuai Li, Ting Su, Si Gao, Peng Wang, Jau Tang, Zhong Lin Wang, Kebin Shi, Zhi Wei Wang
Summary: Investigating coherent acoustic vibrations in nanostructured materials provides fundamental insights into optomechanical responses and microscopic energy flow. However, previous measurements have shown that only the dilation modes are launched after laser excitations, and the acoustic bending and torsional motions are absent. In this study, acoustic vibrational dynamics of individual Au nanoprisms on graphene substrates were investigated, revealing low-frequency multiple-mode oscillations and higher superposition amplitudes at nanoprism corners and edges. These findings contribute to the understanding of acoustic dynamics of nanostructures and their interaction with substrates.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Physical
Dohyung Kim, Jae Sung Yun, Arun Sagotra, Alessandro Mattoni, Pankaj Sharma, Jincheol Kim, Da Seul Lee, Sean Lim, Padraic O'Reilly, Liz Brinkman, Martin A. Green, Shujuan Huang, Anita Ho-Baillie, Claudio Cazorla, Jan Seidel
Summary: The past decade has witnessed the rapid rise of a new class of solar cells based on mixed organic-inorganic halide perovskites. The power conversion efficiency of halide perovskite solar cells has exceeded 25% for single-junction devices and 30% for tandem devices. Twin domains within polycrystalline grains play important roles in ionic and charge carrier transport properties, although their mechanisms are not fully understood. This study combines molecular dynamic simulations and nanoscale scanning probe microscopy investigations to reveal unique properties of the twin domains that contribute to ion migration and influence charge separation and collection. The findings highlight the significance of nanoscale intragrain features for the development of high-efficiency perovskite solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Long Hu, Qingya Li, Yuchen Yao, Qiang Zeng, Zizhen Zhou, Claudio Cazorla, Tao Wan, Xinwei Guan, Jing-Kai Huang, Chun-Ho Lin, Mengyao Li, Soshan Cheong, Richard D. Tilley, Dewei Chu, Jianyu Yuan, Shujuan Huang, Tom Wu, Fangyang Liu
Summary: This study utilizes recycled PbI2 from spent lead acid batteries to synthesize CsPbI3 quantum dots, addressing the issue of environmental pollution in traditional lead smelting processes, recycling lead waste, and successfully synthesizing high-quality quantum dots.
ACS MATERIALS LETTERS
(2022)
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)