Article
Chemistry, Multidisciplinary
Yu-Ci Chang, Zhicheng Jin, Ke Li, Jiajing Zhou, Wonjun Yim, Justin Yeung, Yong Cheng, Maurice Retout, Matthew N. Creyer, Pavla Fajtova, Tengyu He, Xi Chen, Anthony J. O'Donoghue, Jesse V. Jokerst
Summary: Electrostatic interactions play a crucial role in colloidal assembly. The Schulze-Hardy rule states that nanoparticles tend to coagulate more when exposed to counterions with higher charge valence. This study investigates how the Schulze-Hardy rule functions when using more complex charge carriers instead of simple electrolytes. The researchers designed cationic peptides with different valencies and found that their charge screening behaviors on anionic gold nanoparticles followed the six-power relationship in the Schulze-Hardy rule. This discovery also led to a simple and effective strategy for visually measuring SARS-CoV-2 main protease (M-pro). By understanding the fundamental disassembly of nanoparticles based on the Schulze-Hardy rule, this work offers potential in designing versatile substrates for colorimetric sensing of other proteases.
Article
Chemistry, Physical
Prabhat Mishra, Anil K. Debnath, Sharmistha Dutta Choudhury
Summary: In this study, thin films of an emerging plasmonic material, TiN, were prepared and characterized. The effectiveness of TiN for fluorescence coupling in metal-dielectric structures was examined. The results showed that TiN substrates have comparable performance to conventional Au substrates for surface plasmon-coupled emission and waveguide-coupled emission. Additionally, the TiN thin films are reusable.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Jihua Xu, Jinmeng Li, Guangxu Guo, Xiaofei Zhao, Zhen Li, Shicai Xu, Chonghui Li, Baoyuan Man, Jing Yu, Chao Zhang
Summary: The study combined self-organizing process and imprinting technology to construct a cheap and reproducible flexible PVA nanocavity array, enhancing the SERS performance. Experimental results showed the substrate exhibited good mechanical stability in bending experiments and provided stable signals even with light incident from different angles.
Article
Chemistry, Physical
Jinling Gao, Wei Zhan, Yuhan Xiao, Xingrui Zhu, Wei Gao, Hong Yin
Summary: In this study, the surface plasmonic coupling between gold nanoparticles and ultrathin boron nitride nanosheets was demonstrated, leading to a significant enhancement of the Raman signal. By varying the size of the nanoparticles, the Raman signal of the nanosheets was improved from 1.7 to 71. The mechanism behind this enhancement was explored through the electromagnetic field coupling strength and charge transfer at the interfaces.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Ana Sanchez-Iglesias, Joscha Kruse, Andrey Chuvilin, Marek Grzelczak
Summary: In the process of synthesizing inorganic nanoparticles, metallic nanocrystals can be utilized as photocatalysts to regenerate cofactor molecules, enabling their cyclic regeneration and reuse in the nucleation process, opening up new possibilities for the sustainable synthesis of inorganic nanoparticles.
Article
Materials Science, Multidisciplinary
Jingjing Guo, Ce Shang, Shuo Gao, Yongbiao Zhang, Bo Fu, Lijun Xu
Summary: A flexible optical tactile sensor is developed using a plasmonic optical fiber made from gold nanoparticles and elastomers. It can accurately sense contact force and convert mechanical stimuli into interpretable light signals with low hysteresis and adjustable sensitivity. The sensor is capable of real-time monitoring of blood pressure, respiration, and tactile mapping of hand motions.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Monosij Mondal, Alexander Semenov, Maicol A. Ochoa, Abraham Nitzan
Summary: Controlling molecular spectroscopy and chemical behavior in a cavity environment is a hot topic. Plasmonic cavities can have strong radiation-matter coupling, even at the level of single molecules. This study presents a method for estimating the radiation-matter coupling and applies it to the calculation of infrared cavities.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Xuewei Liao, Qiuyang Xu, Hanjun Sun, Wenyuan Liu, Yuming Chen, Xing-Hua Xia, Chen Wang
Summary: In this study, a plasmonic nanozyme of Au gold nanoparticles (AuNPs) and Cu metal-organic framework nanosheets (Cu-MOFNs) was prepared. The results showed that the AuNPs/Cu-MOFNs composite exhibited 1.6-fold faster reaction kinetics under LSPR excitation compared to that in the dark. The study highlights the superiority of plasmonic nanozymes in improving the enzyme-like performance of nanozymes.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
M. Steffi Antony, Rajeshkumar Shankar Hyam
Summary: Gold nanoparticles coated titanium dioxide surface-enhanced Raman scattering (SERS) substrates were fabricated and tested in this study. Amorphous titanium dioxide nanotubes with different geometry were prepared as substrates, and the SERS signal enhancement for the effective detection of rhodamine 6G molecules was studied. The SERS enhancement factor of the substrates was influenced by the geometry of nanotubes and plasmonic photonic interference coupling (P-PIC). The analytical SERS enhancement factor of the substrates was estimated based on reference materials.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Physical
Hirak Chatterjee, Dorothy Bardhan, Sudip Kumar Pal, Keiji Yanase, Sujit Kumar Ghosh
Summary: A retrospective formalism has been designed through critical condensation of electromagnetic scattering theories, macroscopic mixing rules, and micromechanics at the metal-analyte interface, which can be adopted as a generalized model.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Mamoru Tamura, Takuya Iida, Kenji Setoura
Summary: This study demonstrates through numerical simulation that spatial shaping of nanoscale temperature fields can be achieved by plasmonic heating of a single TiN nanostructure. The low thermal conductivity of TiN compared to metals like Au allows for clear transcription of heat power density distributions into temperature fields.
Article
Chemistry, Physical
Diogo F. Carvalho, Manuel A. Martins, Paulo A. Fernandes, M. Rosario P. Correia
Summary: Understanding the plasmonic coupling between metallic nanoparticles (NPs) in a 2D array and the effect of a semiconductor substrate is crucial for optimizing optoelectronic structures. This study presents a simple semi-analytical approach based on the discrete dipole approximation (DDA) to simulate the far-field and near-field properties of NP arrays, taking into account particle coupling and the presence of a semiconductor substrate. The method is validated for Ag NP dimers and single Ag NPs on a GaN substrate, and then applied to square and random arrays of Ag NPs. It is found that increasing the NP surface density on a GaN substrate results in a redshift of the dipolar resonance frequency and enhanced near-field properties. The single dipole approach used in this model allows for efficient computational times, making it advantageous for predicting optical properties in large NP arrays on semiconductor substrates for various applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Multidisciplinary Sciences
Sofia Dembski, Thomas Schwarz, Maximilian Oppmann, Shahbaz Tareq Bandesha, Joern Schmid, Sarah Wenderoth, Karl Mandel, Jan Hansmann
Summary: The study describes the successful development of a dual-arm robot-based modular infrastructure and the establishment of an automated process for the reproducible production of nanoparticles. The use of the robot not only increased the synthesis accuracy and reproducibility but also reduced the personnel time and costs up to 75%.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
N. Andam, S. Refki, S. Hayashi, Z. Sekkat
Summary: Optical sensors based on surface plasmon resonance (SPR) in layered media have attracted attention for their ability to detect biomolecular interactions and changes in refractive index and thickness, with MIM and CSPR configurations showing different sensitivities for bulk and thin film sensing applications. Understanding the differences in sensitivity between these configurations is important for future advancements in plasmonic sensing.
SCIENTIFIC REPORTS
(2021)
Article
Polymer Science
Xin Wang, Xuhong Guo, Martien Cohen A. Stuart, Junyou Wang, Peng Ding
Summary: In this study, cationic polyelectrolyte nanogels were successfully synthesized by Electrostatic Assembly Directed Polymerization (EADP) method and used to load gold nanoparticles (AuNPs). The catalytic activity of the loaded AuNPs was found to be dependent on the crosslinking degree of the nanogels, but independent on the nanogel size. This demonstrates the potential of polyelectrolyte nanogels for developing functional nanoreactors.
Article
Materials Science, Multidisciplinary
Antonio Ferraro, Giuseppe Emanuele Lio, Mauro Daniel Luigi Bruno, Sara Nocentini, Maria Penolepe De Santo, Diederik Sybolt Wiersma, Francesco Riboli, Roberto Caputo, Riccardo Cristoforo Barberi
Summary: This work utilizes a hidden photonic multilayer structure to protect a printed QR code on paper, enabling recognition under specific illumination conditions and providing resistance to cloning and tampering attacks. It can be easily integrated into an industrial supply chain to protect consumer goods.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Michal Swierczewski, Thomas Burgi
Summary: Recently, there has been a shift towards using hydrophobic gold and silver nanoparticles as the preferred choice for transferring monolayers onto solid substrates. The interactions between the particles in the absence of polar groups include dispersive attractions from the metal cores, repulsions between ligand shells, and weaker entropic factors. The article explores the evolution of the monolayers, the role of different particle and solution properties, and strategies to enhance their mechanical stability and improve their applicability in the industry.
Article
Materials Science, Multidisciplinary
Maciej Lipok, Patryk Obstarczyk, Sylwia Parzyszek, Yanan Wang, Maciej Baginski, Thomas Buergi, Wiktor Lewandowski, Joanna Olesiak-Banska
Summary: This study proposes a new approach to assemble atomically precise gold nanoclusters into helical nanofilaments using a liquid-crystal template, enabling circularly polarized luminescence. The findings demonstrate that double functionalization and the use of a liquid crystal matrix can successfully assemble ultrasmall particles and tune their optical properties.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Carin R. Lightner, Filip Desmet, Daniel Gisler, Stefan A. Meyer, Ariel Francis Perez Mellor, Hannah Niese, Arnulf Rosspeintner, Robert C. Keitel, Thomas Burgi, Wouter A. Herrebout, Christian Johannessen, David J. Norris
Summary: Spectroscopic techniques can provide information about the chiral structure of molecules, but small errors in optical polarization control can lead to experimental artifacts. This study focuses on Raman optical activity (ROA) as an example and comprehensively investigates chiroptical artifacts. Based on the findings, standard controls are proposed to help researchers better understand, identify, and avoid experimental artifacts.
Article
Chemistry, Multidisciplinary
Ke-Feng Zhang, Nidal Saleh, Michal Swierczewski, Arnulf Rosspeintner, Francesco Zinna, Gennaro Pescitelli, Celine Besnard, Laure Guenee, Thomas Burgi, Jerome Lacour
Summary: A chiral bispyrene macrocycle was synthesized for intermolecular excimer fluorescence upon aggregation using a double hydrothiolation method followed by intramolecular oxidation. High stereoselectivity was achieved for the thiol-ene additions under templated conditions. The structural evolution upon aggregation was monitored by ECD/CPL.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Xianwei Wang, Thomas Buergi
Summary: Knowledge of the reaction mechanism is essential for catalyst improvement. Traditionally, mechanistic studies have focused on structure and reaction conditions, neglecting the time dimension. In this study, time-resolved infrared spectroscopy coupled with modulation excitation spectroscopy was used to demonstrate the influence of time on the mechanism of CO oxidation over Au/TiO2. A dual catalytic mechanism was identified, with CO and TiO2 playing key roles at different stages of the reaction. These findings highlight the importance of studying short-time kinetics for mechanistic studies.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Abolfazl Ziarati, Jiangtao Zhao, Jafar Afshani, Rania Kazan, Ariel Perez Mellor, Arnulf Rosspeintner, Siobhan McKeown, Thomas Burgi
Summary: Controllable CO2 reduction selectivity can be achieved by tuning the architecture of the photocatalyst. A planar structure (p Au/CN) showed high selectivity for HER with 87%, while a yolk@shell structure (Y@S Au@CN) exhibited high selectivity of carbon products by suppressing the HER to 26%. Further improvement was achieved by surface decorating the yolk@shell structure with Au-25(PET)(18) clusters, resulting in longer charge separation. The optimized Au@CN/Au-c/G Y@S structure achieved high photocatalytic CO2RR selectivity of 88%.
Article
Materials Science, Multidisciplinary
Giuseppe Emanuele Lio, Antonio Ferraro, Rafal Kowerdziej, Alexander O. Govorov, Zhiming Wang, Roberto Caputo
Summary: The researchers report the design of a metamaterial-based sensor capable of detecting small amounts of molecules in a medium. By accurately selecting the parameters of the metamaterial, a highly sensitive sensor was developed. This work paves the way for the development of novel devices for biomedical and environmental applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Vera Truttmann, Adea Loxha, Rares Banu, Ernst Pittenauer, Sami Malola, Maria Francisca Matus, Yuchen Wang, Elizabeth A. Ploetz, Guenther Rupprechter, Thomas Burgi, Hannu Hakkinen, Christine Aikens, Noelia Barrabes
Summary: Chiral gold nanoclusters were synthesized using the chiral ligand 2-MeBuSH, leading to the unexpected formation of enantiopure chiral clusters. The chiral activity of Au-144 was found to be stronger than Au-38 or Au-25, as confirmed by experimental evaluation using circular dichroism spectroscopy. The prepared chiral clusters exhibited stability against diastereoisomerization up to temperatures of 80°C. These findings demonstrate the selective preparation of enantiopure, intrinsically chiral, and highly stable thiolate-protected Au nanoclusters, supporting the predicted super chirality in the Au-144 cluster.
Article
Chemistry, Multidisciplinary
Daniele Rosa-Gastaldo, Marion Pupier, Giorgi Meshvildishvili, Jasmine Viger-Gravel, Thomas Burgi
Summary: Ligand and metal exchange reactions are important for shaping the properties of metal nanoclusters, and understanding the dynamics of the ligand monolayer is crucial for functionalization. Through experiments and simulations, we determined the activation parameters for an intracluster ligand rearrangement in specific clusters, revealing that the process does not involve metal-sulfur bond breaking and follows a first-order rate law, different from collisional ligand exchange.
Article
Chemistry, Multidisciplinary
Jiangtao Zhao, Abolfazl Ziarati, Arnulf Rosspeintner, Yanan Wang, Thomas Buergi
Summary: The conversion of hydrophobic Au25PET18 nanoclusters to Au25SR19 nanoclusters was achieved through ligand exchange reactions with thiolated terpyridine-metal complexes. The preference for ligand addition or exchange was found to be metal dependent. The photophysical properties of the resulting Au25SR19 nanoclusters were significantly different from those of Au25PET18.
Article
Chemistry, Multidisciplinary
Xianwei Wang, Jiangtao Zhao, Henrik Eliasson, Rolf Erni, Abolfazl Ziarati, Siobhan Mckeown Walker, Thomas Burgi
Summary: Depositing Au-25 nanoclusters onto a manganese oxide support produces a stable and highly active catalyst. By optimizing the pretreatment temperature, the performance of the Au-25/MnO2 catalyst in low-temperature CO oxidation can be significantly enhanced.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Green & Sustainable Science & Technology
Yuming Wang, Yi Li, Longfei Wang, Wenlong Zhang, Thomas Burgi
Summary: This study investigates the collaborative enhancement of photocatalytic properties by graphitic carbon nitrides (g-C3N4) and microorganisms, and its potential for environmental depollution. The research explores the electronic interactions and roles of bio-substances in this process. The study finds that nano-photocatalysts are adsorbed onto bio-aggregates and surface hydrophilicity plays a role in the toxicity of photocatalysts in dark environments. The research also reveals hetero-junctions between photocatalysts and bio-substances and demonstrates effective nitrobenzene degradation. The findings suggest that bio-activities can stimulate material modification and the integration of inorganic and organic systems in a sustainable manner.
Article
Chemistry, Multidisciplinary
Jiangtao Zhao, Abolfazl Ziarati, Arnulf Rosspeintner, Thomas Burgi
Summary: In this study, a new hybrid material is obtained by anchoring thiol functionalized terpyridine metal complexes on Au nanoclusters. This material exhibits high activity and selectivity in the process of photosensitizing CO2 reduction, along with excellent long-term stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Anton Kudashev, Stefania Vergura, Marco Zuccarello, Thomas Burgi, Olivier Baudoin
Summary: The divergent synthesis of two indane polyketides of the indidene family has been reported. The study demonstrates the construction of the indane intermediate and the installation of the aroyl moiety using palladium-catalyzed and nickel-catalyzed reactions. The structures of indidenes B and C have been revised based on these investigations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(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)