Article
Chemistry, Physical
Xiaoming Li, Xiaopeng Duan, Jiawei Qiao, Shilin Li, Yunhao Cai, Jianqi Zhang, Yuan Zhang, Xiaotao Hao, Yanming Sun
Summary: Researchers have successfully expanded the light absorption range of all-polymer solar cells by introducing benzotriazole into the polymer acceptors. The resulting polymer acceptors exhibit higher open-circuit voltage and lower voltage loss, leading to a high efficiency of 16.58% for the ternary all-PSCs.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xingzheng Liu, Yanan Wei, Xin Zhang, Linqing Qin, Zhixiang Wei, Hui Huang
Summary: In recent years, significant improvements have been made in the power conversion efficiency (PCE) of organic solar cells (OSCs) by exploring new active layer materials, especially high efficiency acceptors. Unfused-ring acceptors (UFAs) have attracted attention for their advantages of simple synthesis and low cost compared to fused-ring acceptors. The synthesis of a new UFA BTzO-4F incorporating benzotriazole moiety and intramolecular noncovalent interactions has led to a record PCE of 13.8% for UFAs, demonstrating the great potential of UFAs for high performance OSCs.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Polymer Science
Rong Wei, Hui Chen, Yikun Guo, Han Han, Di Zhang, Yulin Zhu, Feng He, Dahui Zhao
Summary: Perylenediimide-based polymers have excellent photovoltaic properties but typically exhibit low open-circuit voltage in PSCs. This study synthesized two new polymer acceptors with elevated LUMO levels by fusing electron-rich moieties, achieving desirable efficiencies through optimized backbone regularity.
Article
Chemistry, Applied
Jiabing Cao, Lijun Wang, Guofeng You, Lihua Li, Lu Yao, Zhonggao Zhou, E. Yang, Wanzhu Cai, Qidan Ling, Hongyu Zhen
Summary: Dopant-free, electron donor-acceptor type polymeric hole-transporting materials (HTMs) exhibit excellent properties and high efficiency and stability. This study synthesized and explored two copolymers with different pi-bridges, demonstrating good coplanarity, high hole mobility, and superior interface morphology. The dopant-free polymer exhibited significant power conversion efficiency and remained stable for an extended period at ambient conditions.
Article
Polymer Science
Wendi Shi, Yuzhong Huang, Kangqiao Ma, Xiaodong Si, Wanying Feng, Ruohan Wang, Jiaxin Guo, Wei Ma, Shijie Wang, Andrew Clulow, Lester Barnsley, Zhaoyang Yao, Chenxi Li, Xiangjian Wan, Yongsheng Chen
Summary: A polymer acceptor, PX-1, is synthesized using a polymerization strategy with grafted small molecule acceptors. This approach allows for freedom of end groups, efficient terminal packing, enhanced π-π interactions, and facilitated charge transport. All-polymer organic solar cells based on PM6:PX-1 achieve a promising efficiency of 13.55%. This study presents an alternative pathway for designing high-efficiency polymer acceptors through careful regulation of small molecule acceptors and linker units.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Polymer Science
Nani Gopal Ghosh, Ayan Sarkar, Devendra Mayurdhwaj Sanke, Himadri Shekhar Karmakar, Sanjio S. Zade
Summary: The photovoltaic generation of H2O2, an important solar fuel, using a thiophene-coupled anthraquinone and benzotriazole-based donor-acceptor polymer nanoparticles, is systematically studied in this article. The polymer nanoparticles produced hydrogen peroxide in both acidic and neutral media under simulated sunlight irradiation, with a solar to chemical conversion efficiency of approximately 2%. Various experiments revealed the different routes of H2O2 synthesis, involving superoxide anion mediation and anthraquinone mediation.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Xiaoxiao Wang, Cheng Zhong, Guohua Xie, Xingguo Chen
Summary: In this study, thiophene-fused benzothiadiazole unit was used to build donor-acceptor type fluorescent emitters, with the introduction of triphenylamine group as donor resulting in two new luminescent molecules. It was found that BTT2TPA exhibited superior electroluminescent performances compared to BTTTPA, showing deeper red emission and higher quantum efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Zhe Zhang, Zhixiang Li, Bin Kan, Tianqi Chen, Yunxin Zhang, Peiran Wang, Zhaoyang Yao, Chenxi Li, Bin Zhao, Miaomiao Li, Tainan Duan, Xiangjian Wan, Yongsheng Chen
Summary: This study designs and synthesizes three polymer acceptors to fine-tune their optoelectronic and molecular packing properties by introducing halogen atoms in the linkers. Halogenated polymer acceptors exhibit better molecular conformation and absorption characteristics. The highest photovoltaic conversion efficiency is achieved in the device based on the PM6:PZC2 film.
Article
Chemistry, Multidisciplinary
Ziya Shang, Liuyang Zhou, Chenkai Sun, Lei Meng, Wenbin Lai, Jinyuan Zhang, Wenchao Huang, Yongfang Li
Summary: A novel non-equivalent D-A copolymerization strategy was proposed in this study to finely tune the physicochemical and photovoltaic properties of polymers by inserting more D units into the polymer backbone. The non-equivalent D-A copolymers showed improved performance in terms of energy levels, mobility, self-assembly, and crystallinity compared to the traditional alternate D-A copolymer. The non-equivalent D-A copolymer-based PSCs achieved higher power conversion efficiency with improved V-oc, J(sc) and FF simultaneously.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Bo Liu, Lang Chen, Xiaobo Wang, Lang Li, Gang Wang
Summary: A new NBO-based polymer PBDFNBO was synthesized with good solubility and film-forming properties, and its thermal, optical, electrochemical, and photovoltaic properties were investigated in detail. The PBDFNBO showed narrow absorption band and high power conversion efficiency in polymer solar cells.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Bao Zhang, Jianfeng Li, Ailing Tang, Yanfang Geng, Qiang Guo, Erjun Zhou
Summary: Polymerizing small-molecule acceptor with a weak electron-deficient unit, benzo[d] [1,2,3]-triazole, led to the synthesis of a high-efficient polymer acceptor A702, which achieved a high PCE of 11.84%. The heptacyclic ring containing BTA unit proved to be an attractive option for building efficient polymer acceptors.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Zhenghui Luo, Ruijie Ma, Yiqun Xiao, Fan Ni, Tao Liu, Qun Zhan, Huiliang Sun, Yuzhong Chen, Yang Zou, Xinhui Lu, He Yan, Chuluo Yang
Summary: The study synthesized two asymmetric SMAs, BTN-4F and BTSe-4F, with BTN-4F demonstrating higher power conversion efficiency and lower energy loss due to weaker bimolecular recombination, more balanced charge transport, and more favorable morphology.
Article
Metallurgy & Metallurgical Engineering
Zhe Li, Hong-gang Chen, Jun Yuan, Jie Zou, Jing Li, Hui-lan Guan, Ying-ping Zou
Summary: The synthesis of a new polymer acceptor PY9-T was achieved, which showed high power conversion efficiency when blended with the wide bandgap polymer donor PBDB-T. The polymer acceptor also exhibited good thermal stability.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2021)
Article
Energy & Fuels
Bin-Wen Chen, Piao-Yang Xu, Si-Hao Chen, Ke Luan, Zhen-Lin Qiu, Lu Wang, Le-Shan Dai, Yun-Fei Li, Da-Qin Yun, Lin-Long Deng, Su-Yuan Xie, Lan-Sun Zheng
Summary: Three novel donor-acceptor-acceptor small molecules with benzotriazole as the central building block are synthesized and investigated for their molecular structure, electrochemical behavior, and optical properties. Vacuum-deposited small-molecule organic solar cells (SMOSCs) fabricated with these molecules and C-70 as the acceptor exhibit power conversion efficiencies (PCEs) in the range of 6.42-7.43%. One of the molecules shows a promising PCE of 14.84% under indoor illumination, demonstrating its potential in indoor photovoltaic applications.
Article
Chemistry, Applied
Tong Wang, Weijie Wang, Xiaofu Wu, Hui Tong, Lixiang Wang
Summary: In this study, a low bandgap star-shaped FREA with ethylhexyloxy-thiophene α-bridge, TITT-OT-ICF, is synthesized, exhibiting a narrower optical band gap than its counterpart with ethylhexyl-thiophene α-bridge. When blended with a wide bandgap polymer donor, the TITT-OT-ICF-based organic solar cell device shows broader photoresponse, leading to higher short-circuit current density and power conversion efficiency compared to the control device. These results highlight the rational design of low bandgap star-shaped FREAs based on alkoxy-substituted thiophene α-bridge for achieving relatively high JSC and PCE.
Article
Chemistry, Multidisciplinary
Chunsheng Cai, Jia Yao, Lie Chen, Zhongyi Yuan, Zhi-Guo Zhang, Yu Hu, Xiaohong Zhao, Youdi Zhang, Yiwang Chen, Yongfang Li
Summary: Naphthalocyanine derivatives (SiNcTI-N and SiNcTI-Br) were used as cathode interlayer materials (CIMs) in organic solar cells for the first time, showing excellent performance. Among them, SiNcTI-Br CIM exhibited high conductivity and electron mobility, effectively enhancing the efficiency of PM6:Y6-based OSCs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Kai-Kai Liu, He Huang, Jin-Liang Wang, Shi-Sheng Wan, Xiaobo Zhou, Hai-Rui Bai, Wei Ma, Zhi-Guo Zhang, Yongfang Li
Summary: In this study, a series of new acceptors with different positions of selenophene in A-D-A architecture were synthesized, and rational modulation of the central core and conjugated skeleton, as well as atomic positioning, led to optimized film morphology, lattice structure, and charge transport properties, ultimately enhancing the power conversion efficiency of organic solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Xiaoxiao Wang, Cheng Zhong, Guohua Xie, Xingguo Chen
Summary: In this study, thiophene-fused benzothiadiazole unit was used to build donor-acceptor type fluorescent emitters, with the introduction of triphenylamine group as donor resulting in two new luminescent molecules. It was found that BTT2TPA exhibited superior electroluminescent performances compared to BTTTPA, showing deeper red emission and higher quantum efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Multidisciplinary Sciences
Hongyuan Fu, Jia Yao, Ming Zhang, Lingwei Xue, Qiuju Zhou, Shangyu Li, Ming Lei, Lei Meng, Zhi-Guo Zhang, Yongfang Li
Summary: This study developed a simple and inexpensive boron trifluoride etherate-catalyzed Knoevenagel condensation method for the efficient synthesis of high-performing acceptor-donor-acceptor structured small molecule acceptors. Compared with traditional methods, this approach significantly reduces costs and provides an important synthetic tool for the development of PSCs and other emerging technologies.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Min Chen, Zhengli Liang, Xiaoxiao Wang, Jiehua Li, Xingguo Chen, Xingxing Jiang, Zheshuai Lin, Zhen Ma, Hongming Liu
Summary: A series of water-resistant lanthanide-containing nitrates were obtained through hydrothermal process. They exhibit obvious second-order nonlinear optical effect and possess outstanding water-resistant capacity, suggesting their potential as nonlinear optical crystals.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Ziran Liu, Zhixing Liu, Rui Wang, Zhi-Guo Zhang, Jide Wang, Chunfeng Zhang
Summary: In this study, the effect of polar environment on excited state dynamics in OPV molecules was investigated. The findings reveal that the excited states in molecules with strong electron push-pulling effects are stabilized and undergo faster intersystem crossing processes in polar solvents. These results suggest that manipulating the polar environment and electron push-pulling effect can improve device performance.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Zhengkai Li, Zheng'ao Xu, Shanshan Chen, Jia Yao, Hongyuan Fu, Ming Zhang, Yang Bai, Haiqiao Wang, Zitong Liu, Zhi-Guo Zhang
Summary: By alternating the substituted position of trifluorobenzene (Ar3F) in the terminal end group, two asymmetric nonfullerene acceptor (NFA) isomers, namely BTP-gamma-Ar3F and BTP-beta-Ar3F, were designed and their photophysical and photovoltaic properties were compared. It was found that BTP-gamma-Ar3F exhibited better planarity, leading to stronger crystallization and favorable phase separation with the PM6 donor polymer, resulting in higher power conversion efficiency (17.42%) and open circuit voltage (0.90 V) in PM6:BTP-gamma-Ar3F-based organic solar cells. This established structure-property relationship provides a rational design principle for asymmetric NFAs towards high photovoltaic performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Hongyuan Fu, Ming Zhang, Youdi Zhang, Qingyuan Wang, Zheng'ao Xu, Qiuju Zhou, Zhengkai Li, Yang Bai, Yongfang Li, Zhi-Guo Zhang
Summary: In this study, a simple and cost-effective solution to the challenge of synthesizing giant molecule acceptors (GMAs) for stable polymer solar cells was presented. The Lewis acid-catalyzed Knoevenagel condensation with boron trifluoride etherate (BF3 center dot OEt2) as catalyst allowed for the efficient synthesis of GMAs, resulting in a high device efficiency of over 18%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Qian Li, Rui Wang, Tao Yu, Xiaoyong Wang, Zhi-Guo Zhang, Yuan Zhang, Min Xiao, Chunfeng Zhang
Summary: Researchers have identified a new charge separation channel in model copolymer/NFA blends, which allows for long-range charge separation and direct release of free charges. This mechanism, in conjunction with the short-range pathway that involves interfacial charge-transfer excitons, holds potential for optimizing OPVs with diverse device structures.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Polymer Science
Wei Liu, Xiang Xu, Siqing He, Rui Sun, Qi Chen, Jie Min, Zhiguo Zhang, Jun Yuan, Yongfang Li, Yingping Zou
Summary: This study reports a new three-arm star-shaped quasi-macromolecule acceptor TBT and compares it with the traditional linear molecule acceptor DBT. The results show that TBT has advantages in light-absorption capability, tendency to aggregate, and packing behavior. In the organic solar cell blended with PM6, TBT achieves a higher power conversion efficiency (18.04%), which is one of the highest values obtained by star-shaped acceptors in binary organic solar cells.
Article
Chemistry, Physical
Liang Zeng, Ming Zhang, Mengyuan Gao, Lingwei Xue, Haiqiao Wang, Zhi-Guo Zhang, Long Ye
Summary: The deuterium isotope effect plays a significant role in organic reactions and semiconductors. However, its application in organic solar cells has not been fully explored. In this study, two non-fullerene acceptors were designed and synthesized to investigate the effect of deuterium isotope on their optoelectronic and photovoltaic properties. The deuterated acceptor showed higher power conversion efficiency and fill factor compared to the control acceptor.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Ziran Liu, Zhixing Liu, Rui Wang, Zhi-Guo Zhang, Jide Wang, Chunfeng Zhang
Summary: This study investigates the effect of polar environment on the excited-state dynamics of acceptor-donor-acceptor type OPV molecules, and reveals that symmetry breaking in polar solvents can stabilize excited states and accelerate intersystem crossing processes, reducing the energy gaps.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
You Chen, Chuanxiu Jiang, Jiacheng Wang, Ailing Tang, Bao Zhang, Xinfeng Liu, Xingguo Chen, Zhixiang Wei, Erjun Zhou
Summary: This study successfully achieved the goal of reducing voltage loss and increasing short-circuit current density by adopting different material combinations, balancing V-OC and J(SC) to improve the power conversion efficiency of organic photovoltaic devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Hongming Liu, Qingchen Wu, Lili Liu, Zheshuai Lin, P. Shiv Halasyamani, Xingguo Chen, Jingui Qin
Summary: A new 3D noncentrosymmetric mixed-metal sulfate iodate, AgBi(SO4)(IO3)(2), has been designed by aliovalent substitution based on a 2D iodate of AgBi(IO3)(4). The enhancement of second harmonic generation response and the retention of a favorable NLO framework demonstrate a novel strategy for upgrading structural dimensions.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Juanyong Wan, Rongjiang Wen, Yonggao Xia, Mingzhi Dai, Huihui Huang, Lingwei Xue, Zhiguo Zhang, Junfeng Fang, Kwun Nam Hui, Xi Fan
Summary: The study has successfully demonstrated the fabrication of high-efficiency flexible organic solar cells on soft polyethylene substrates using mild all annealing-free solution processing technique.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
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)