Materials Chemistry Frontiers最新文献

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Aggregation induced emission of azobenzene towards a sensitive indication on the self-assembly of cellulose material 偶氮苯的聚集诱导发射,用于灵敏显示纤维素材料的自组装情况
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-11 DOI: 10.1039/d4qm00542b
Jingjing Gu, Guoqiang Zhang, Jiahao Chang, Lei Zhang, Zhongtao Wu, Xiliang Luo, Hao Wang
{"title":"Aggregation induced emission of azobenzene towards a sensitive indication on the self-assembly of cellulose material","authors":"Jingjing Gu, Guoqiang Zhang, Jiahao Chang, Lei Zhang, Zhongtao Wu, Xiliang Luo, Hao Wang","doi":"10.1039/d4qm00542b","DOIUrl":"https://doi.org/10.1039/d4qm00542b","url":null,"abstract":"Azobenzene is one of the most commonly used photochromic molecules, which is rarely used as the fluorescence probe in materials chemistry, due to its competitive light energy consumption from the efficient photoisomerization. In this study, an azobenzene-containing ammonium surfactant is designed for fabricating an ionic celluloe material through an electrostatic complexation with carboxymethyl cellulose. Based on the AIE effect of azobenzene motif, such a cellulose material exhibits fluorescence property. Furthermore, in aqueous condition the self-assembly state of this cellulose material could be well regulated by the azobenzene isomerization under UV/Vis irradiation, which results in a remarkable fluorescence intensity change. As compared to the commonly used UV-Vis absorption, the fluorescence change of azobenzene provides a more sensitive indication for tracking the dissolving and precipitation of the ionic cellulose-surfactant assemblies in aqueous condition. This work provides a useful strategy for fabricating photoresponsive fluorescent biomaterials based on azobenzene, opening a new opportunity for detecting the drug loading materials.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring electrode/polymer electrolyte interface chemistry and a regulating strategy of interfacial stability: a review 探索电极/聚合物电解质界面化学和界面稳定性调节策略:综述
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-11 DOI: 10.1039/d4qm00219a
Shuru Wu, Chenyu Wang, Shuanghui Li, Jingzheng Weng
{"title":"Exploring electrode/polymer electrolyte interface chemistry and a regulating strategy of interfacial stability: a review","authors":"Shuru Wu, Chenyu Wang, Shuanghui Li, Jingzheng Weng","doi":"10.1039/d4qm00219a","DOIUrl":"https://doi.org/10.1039/d4qm00219a","url":null,"abstract":"Polymer electrolytes have garnered considerable interest as a promising substitute owing to their exceptional mechanical flexibility, and appropriate interfacial compatibility with electrodes. However, the realization of economically viable and industrially scalable solid-state batteries with an elevated energy density and reliable cycling life remains a formidable task. The integration of high-voltage cathodes presents additional challenges, such as polymer electrolyte decomposition, consequential gas discharge, and the formation of an unstable solid–electrolyte interphase (SEI) layer on the lithium metal anode. These issues significantly impact the battery's cycling life and safety, necessitating profound attention towards enhancing the electrochemical stability of polymer electrolytes. Within this comprehensive review, we explore the problems arising from the evolution of the electrolyte/cathode and electrolyte/anode interfaces (<em>e.g.</em>, electrochemical decomposition of the electrolyte, reverse cation catalysis, degradation products, <em>etc.</em>), and propose corresponding interfacial remediation strategies (<em>e.g.</em>, <em>in situ</em> polymerization, inorganic coatings, <em>etc.</em>). Finally, we describe the persistent challenges and future perspectives aimed at providing strategies for the development of innovative polymer electrolytes capable of realizing high-performance lithium-metal batteries.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermoelectric performance of organic conductors 有机导体的热电性能
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-10 DOI: 10.1039/d4qm00466c
Takehiko Mori
{"title":"Thermoelectric performance of organic conductors","authors":"Takehiko Mori","doi":"10.1039/d4qm00466c","DOIUrl":"https://doi.org/10.1039/d4qm00466c","url":null,"abstract":"Organic polymers such as poly(ethylenedioxythiophene): polystyrenesulfonate (PEDOT: PSS) have attracted attention as thermoelectric materials, but charge-transfer complexes have not been explored sufficiently though these materials show very high conductivity and even superconductivity. Here, the power factors of representative organic metals and superconductors are estimated down to low temperatures. Several metallic conductors show power factors comparable to PEDOT: PSS (3 μW cm<small><sup>-1</sup></small> K<small><sup>-2</sup></small>), when the metallic conductivity is maintained down to low temperatures. In particular, Cu(DMDCNQI)<small><sub>2</sub></small>, where DMDCNQI is dimethyldicyanoquinonediimine, exhibits a power factor as large as 95 μW cm<small><sup>-1</sup></small> K<small><sup>-2</sup></small> and Peltier conductivity of 3.7 A cm<small><sup>-1</sup></small> K<small><sup>-1</sup></small> around 36 K, which are comparable to the conventional inorganic thermoelectric materials. Since this is attributed to the participation of the Cu flat band and the resulting three-dimensional energy band, the use of metal complexes is a promising strategy to explore high-performance thermoelectric materials. Thermoelectric power has been evaluated from the band structure, but conductivity anisotropy is calculated, and relaxation time is estimated by the combined use of the observed conductivity.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141585482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrafast and high-resolution X-ray imaging based on zero-dimensional organic silver halides 基于零维有机卤化银的超快高分辨率 X 射线成像技术
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-10 DOI: 10.1039/d4qm00362d
Yongqiang Zhou, Zixian Wang, Linfeng Guo, Lei Huang, Yichen Liu, Mengyue Wu, Qian Zhang, Kang An, Peng He, Fei Wang, Juan Du, Zhengzheng Liu, Zhiping Hu, Yuxin Leng, Yayun Pu, Jun'an Lai, Xiaosheng Tang
{"title":"Ultrafast and high-resolution X-ray imaging based on zero-dimensional organic silver halides","authors":"Yongqiang Zhou, Zixian Wang, Linfeng Guo, Lei Huang, Yichen Liu, Mengyue Wu, Qian Zhang, Kang An, Peng He, Fei Wang, Juan Du, Zhengzheng Liu, Zhiping Hu, Yuxin Leng, Yayun Pu, Jun'an Lai, Xiaosheng Tang","doi":"10.1039/d4qm00362d","DOIUrl":"https://doi.org/10.1039/d4qm00362d","url":null,"abstract":"Supersensitive and fast X-ray imaging is of great importance in medical diagnosis, industrial flaw detection, security &amp; safety inspection, and frontier science exploration. As the core of detection devices, new generation scintillators require small self-absorption capacity, short fluorescence lifetime, simple film-making protocol, excellent stability and non-toxicity. Herein, new type lead-free organic silver halides TPPAgX2 (TPP = C24H20P, X = I, Br, Cl) are rationally developed with large Stokes shift and ultralow photoluminescence decay (3.8 ns lifetime). It realizes an ultrafast fluorescent response that is the best among all the Pb-free perovskite scintillators. Temperatures-dependent PL and DFT calculations together confirm that TPPAgCl2 follows an emission mechanism that triplet exciton can be rapidly upconverted by thermal activation. A series of TPPAgX2-based flexible scintillator film were fabricated and tested. The detection limit of 0.447 μGyair/s were obtained for the TPPAgCl2, which is one order of magnitude lower than medical X-ray diagnosis requirement. In addition, it exhibits superior X-ray imaging resolution of 11.87 lp/mm. The excellent performances and simple preparation methodology are expected to be potentially applicable for large-scale manufacturing.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Heterocyclic Strategy for Regulating the Proportion of Type I and Type II of Photodynamic Therapy 调节光动力疗法 I 型和 II 型比例的杂环策略
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-04 DOI: 10.1039/d4qm00399c
Hui Tang, Ning Ma, Xiaochun Liu, Shiyu Wu, Hairong Li, Kangyao Chen, Yitong Jiang, Yahui Zhang, Zhouyu Wang, Xiao-Qi Yu
{"title":"A Heterocyclic Strategy for Regulating the Proportion of Type I and Type II of Photodynamic Therapy","authors":"Hui Tang, Ning Ma, Xiaochun Liu, Shiyu Wu, Hairong Li, Kangyao Chen, Yitong Jiang, Yahui Zhang, Zhouyu Wang, Xiao-Qi Yu","doi":"10.1039/d4qm00399c","DOIUrl":"https://doi.org/10.1039/d4qm00399c","url":null,"abstract":"Type I photosensitizers (PSs) of photodynamic therapy (PDT) are advanced because they can produce cytotoxic reactive oxygen species (ROS) through electron transfer even in hypoxic environments. However, this process is more difficult than that of Type II process via energy transfer. Herein, we report a facile and effective strategy for regulating the proportion of two types of PSs by converting Type II PSs to Type I PSs through the introduction of heterocyclic rings. Three tetraphenyl-1,3-butadiene (TPB) derivatives were obtained, each with a different “bridge”: benzene (TPP), thiophene (TPS), and furan (TPO), forming typical D-A structures. Compared with TPP, electron-rich heterocyclic derivatives, TPS and TPO can produce more ROS, with Type I accounting for a higher proportion. This is because the lone pair of electrons can enhance the intersystem crossing and electron transfer. Systematic and detailed experimental and theoretical calculations prove the proposal herein: (Yield of ROS) TPO &gt; (Yield of ROS) TPS &gt; (Yield of ROS) TPP and (Proportion of Type I ROS) TPO &gt; (Proportion of Type I ROS) TPS &gt; (Proportion of Type I ROS) TPP. This strategy serves as an avenue for new PSs and lays a foundation for the design of pure Type I PSs.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tuning organic ligands to optimize the nitrogen reduction performance of Co(II) or Ni(II)‐based MOFs 调整有机配体以优化基于 Co(II) 或 Ni(II) MOFs 的氮还原性能
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-03 DOI: 10.1039/d4qm00418c
Ling Qin, Ying-Xin Zhao, Qiang Liu, Jin-Long An, Han-Xi Wang, Maofeng Zhang, Chengwu Shi, Hegen Zheng
{"title":"Tuning organic ligands to optimize the nitrogen reduction performance of Co(II) or Ni(II)‐based MOFs","authors":"Ling Qin, Ying-Xin Zhao, Qiang Liu, Jin-Long An, Han-Xi Wang, Maofeng Zhang, Chengwu Shi, Hegen Zheng","doi":"10.1039/d4qm00418c","DOIUrl":"https://doi.org/10.1039/d4qm00418c","url":null,"abstract":"Electrocatalytic nitrogen reduction to ammonia reaction (eNRR) can use clean energy and catalyst materials to convert N2 to NH3 under relatively mild reaction conditions, but how to design and establish an efficient NH3 production system has been the focus of eNRR research. Metal-organic frameworks (MOFs) are a class of crystalline porous materials with high specific surface area, high porosity and designable structure, which show great potential as new electrocatalysts. However, the inherent low conductivity and low stability of MOFs materials have greatly hindered their further application in the field of electrocatalysis. How to design and synthesize highly stable and highly conductive MOFs materials, regulate the energy of MOFs eNRR reaction intermediates and the adsorption strength of active species is the key to improve the electrocatalytic performance. Hence, five Co-MOFs with similar structure were designed to investigate the effect of small changes in organic ligand structure on nitrogen reduction performance. Among, Co-MOF based on thiazole ligand has the best eNRR performance, with the highest NH3 yield (51.30 µg·h-1·mgcat-1) and Faraday efficiency (29.2%) at -0.4 V vs. RHE. The tuning of organic ligands to optimize the nitrogen reduction to ammonia activity is further revealed in this work, which can provide theoretical guidance for the design and development of high-performance eNRR electrocatalysts in the future.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Outstanding Reviewers for Materials Chemistry Frontiers in 2023 2023 年《材料化学前沿》杰出审稿人
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-03 DOI: 10.1039/d4qm90038c
{"title":"Outstanding Reviewers for Materials Chemistry Frontiers in 2023","authors":"","doi":"10.1039/d4qm90038c","DOIUrl":"https://doi.org/10.1039/d4qm90038c","url":null,"abstract":"We would like to take this opportunity to thank all of <em>Materials Chemistry Frontiers</em>’ reviewers for helping to preserve quality and integrity in chemical science literature. We would also like to highlight the Outstanding Reviewers for <em>Materials Chemistry Frontiers</em> in 2023.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MoS2 nanosheets coupled on Ti3C2Tx prepared by molten salt etching for enhancing lithium storage performance 用熔盐蚀刻法制备耦合在 Ti3C2Tx 上的 MoS2 纳米片,以提高锂存储性能
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-03 DOI: 10.1039/d4qm00388h
Guoyong Huang, Shaochen Wang, Chenwei Qu, Xin Wang, Daoyong Lin, Tiantian Cao, Shengming Xu
{"title":"MoS2 nanosheets coupled on Ti3C2Tx prepared by molten salt etching for enhancing lithium storage performance","authors":"Guoyong Huang, Shaochen Wang, Chenwei Qu, Xin Wang, Daoyong Lin, Tiantian Cao, Shengming Xu","doi":"10.1039/d4qm00388h","DOIUrl":"https://doi.org/10.1039/d4qm00388h","url":null,"abstract":"Molybdenum disulfide (MoS2) has great potential as an anode material for lithium-ion batteries due to its graphite-like layered structure and high specific capacity (669.0 mAh·g-1). However, challenges such as volume expansion during lithium storage have impeded its utilization. The combined alteration of MoS2 and MXenes has demonstrated its efficacy as a modification technique. In this study, a green and facile phase engineering strategy has been implemented for the synthesis of MoS2/Ti3C2Tx nanocomposites. The Ti3C2Tx was rapidly prepared by the fluorine-free molten salt etching method, and then the MoS2/Ti3C2Tx composite was synthesized by the one-pot method. Fluffy and open petal-like interconnect structures were constructed by combining few-layer MoS2 nanosheets with Ti3C2Tx substrate. The introduction of the substrate material (Ti3C2Tx) provides a uniform growth platform for MoS2 nanosheets, and Ti3C2Tx, acting as the supporting material, imparts enhanced structural stability to the composite. Theoretical calculations indicate that this configuration may result in a reduction of the diffusion energy barrier of Li+ from 0.78 eV to 0.19 eV, as well as an enhanced electron transfer. This composite material exhibits enhanced capacity performance, achieving 460.6 mAh·g-1 at 0.1 A·g-1 after 100 cycles. This approach offers valuable insights into the synthesis of additional high-performance composite materials.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lignin-based adaptable covalently cross-linked fabric for flexible sensors 用于柔性传感器的木质素基适应性共价交联织物
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-02 DOI: 10.1039/d4qm00286e
Xiaozhen Ma, Xiaolin Wang, Honglong Zhao, Minghui Cui, Xiaobo Xu, Fangfang Kong, Peng Chen, Ning Yan, Jin Zhu, Jing Chen
{"title":"Lignin-based adaptable covalently cross-linked fabric for flexible sensors","authors":"Xiaozhen Ma, Xiaolin Wang, Honglong Zhao, Minghui Cui, Xiaobo Xu, Fangfang Kong, Peng Chen, Ning Yan, Jin Zhu, Jing Chen","doi":"10.1039/d4qm00286e","DOIUrl":"https://doi.org/10.1039/d4qm00286e","url":null,"abstract":"In this study, we successfully upcycled a novel lignin-based covalent adaptable polyurethane elastomer (LPUE) that we previously synthesized into a graphene-composited covalent adaptable lignin-based polyurethane fabric (LPUF). This fabric exhibited outstanding solvent resistance, toughness (LPUF-0 with a tensile strength of 29.1 ± 1.6 MPa, an elongation at break of 653 ± 67%, and a toughness of 103 ± 3.8 mJ m<small><sup>−3</sup></small>), and deformation responsiveness. These results not only open up new possibilities for improving covalently adaptable networks in fabrics, but also pave the way for developing solvent-resistant, wearable sensing devices.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of Cr3+-activated broadband NIR phosphors with tunable and abnormal thermal quenching behavior for NIR pc-LEDs 为近红外 pc-LED 设计具有可调异常热淬灭行为的 Cr3+ 激活型宽带近红外荧光粉
IF 7 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2024-07-01 DOI: 10.1039/d4qm00395k
Qijian Zhu, Jiansheng Huo, Quwei Ni, Qiuhong Zhang, Junhao Li, Haiyong Ni, Jianbang Zhou
{"title":"Design of Cr3+-activated broadband NIR phosphors with tunable and abnormal thermal quenching behavior for NIR pc-LEDs","authors":"Qijian Zhu, Jiansheng Huo, Quwei Ni, Qiuhong Zhang, Junhao Li, Haiyong Ni, Jianbang Zhou","doi":"10.1039/d4qm00395k","DOIUrl":"https://doi.org/10.1039/d4qm00395k","url":null,"abstract":"Cr3+-activated broadband near-infrared (NIR) phosphors usually show controllable and excellent photoluminescence (PL) properties, but their poor thermal stability remains a big challenge. Herein, a series of Lu3-xCaxGa5-xSixO12:Cr3+ garnet phosphors with tunable and abnormal thermal quenching performance has been successfully proposed. It is found that both the crystal field strength and calculated energetic difference between 4T2 and 2E states decrease obviously with increasing [Ca2+-Si4+] co-substitution, resulting in the thermal occupation of 4T2 state and broadened PL spectra. More importantly, the Lu3-xCaxGa5-xSixO12:Cr3+ phosphors show improved PL thermal stability depending on the different thermal population between 4T2 and 2E states, and the mechanism is investigated in detail. The PL intensity of optimal sample reaches up to 125% and 121% at 425 K and 475 K compared with that at 300 K, respectively, which is much better than most Cr3+-activated broadband NIR phosphors. A NIR phosphor-converted light-emitting diode (NIR pc-LED) has been fabricated using the as-prepared thermally stable phosphor and its application in bio-imaging and night vision is demonstrated.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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