Materials Chemistry Frontiers最新文献_第6页

Doping PEDOT:PSS with cesium chloride for enhancing the performance of perovskite solar cells 用氯化铯掺杂PEDOT:PSS提高钙钛矿太阳能电池性能

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-06-03 DOI: 10.1039/D5QM00131E

Wan Cheng, Cunyun Xu, Ying Li, Yanqing Yao, Yuanlin Yang, Xusheng Zhao, Ping Li and Lijia Chen

{"title":"Doping PEDOT:PSS with cesium chloride for enhancing the performance of perovskite solar cells","authors":"Wan Cheng, Cunyun Xu, Ying Li, Yanqing Yao, Yuanlin Yang, Xusheng Zhao, Ping Li and Lijia Chen","doi":"10.1039/D5QM00131E","DOIUrl":"https://doi.org/10.1039/D5QM00131E","url":null,"abstract":"Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is the most commonly used hole transport layer (HTL) material in perovskite solar cells (PSCs) due to its high visible light transmittance, excellent solution processability, and wettability suitable for top perovskite formation. The presence of surface defects in PEDOT:PSS films decreases the photoelectric conversion efficiency (PCE) and long-term stability of PSCs. These defects lead to the formation of pores in the growth of perovskite films on PEDOT:PSS, impeding the extraction and transfer of effective charges. Therefore, in this article, cesium chloride is doped into PEDOT:PSS to enhance its surface morphology, reduce surface roughness, improve the quality of sulfide thin films, promote charge transfer ability between interfaces, enhance conductivity, reduce non radiative recombination of the device, and improve the photovoltaic performance of the device. The open circuit voltage (VOC) increased from 1.00 V to 1.02 V, the short-circuit current (JSC) increased from 21.04 mA cm−2 to 21.72 mA cm−2, the fill factor (FF) increased from 77.90% to 82.04%, and the PCE of MAPbI3−xClx PSCs increased from 16.39% to 18.18%. Specifically, when using cesium chloride-doped PEDOT:PSS as the HTL, the PCE of the Sn-Pb PSCs increased from 19.49% to 21.44%.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 14","pages":" 2224-2231"},"PeriodicalIF":6.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566816","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

Diblock copolymer micelles with patches in polyhedral configurations mimicking atomic valence structures† 模拟原子价结构的多面体构型双嵌段共聚物胶束

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-06-02 DOI: 10.1039/D5QM00271K

Donghwi Kang, Saero Kim and Byeong-Hyeok Sohn

{"title":"Diblock copolymer micelles with patches in polyhedral configurations mimicking atomic valence structures†","authors":"Donghwi Kang, Saero Kim and Byeong-Hyeok Sohn","doi":"10.1039/D5QM00271K","DOIUrl":"https://doi.org/10.1039/D5QM00271K","url":null,"abstract":"Colloidal particles can act as artificial atoms in the synthesis of colloidal molecules that resemble molecular structures, provided they mimic valence behavior and atomic bonding. Chemically or structurally distinct patches on their surfaces can offer valence-like behavior, enabling inter-patch bonding. In this study, we demonstrate that patchy micelles of diblock copolymers can mimic atomic valence configurations and bond formation. We first synthesized a series of diblock copolymers to form spherical micelles with varying corona-to-core ratios. Then, we induced patches in linear, triangular, tetrahedral, trigonal bipyramidal, and octahedral configurations, mimicking atomic valence shapes, by crosslinking the core and modifying the solvent. Additionally, we confirmed that the size of patchy micelles, particularly those with a tetrahedral configuration, could be controlled by adjusting the total molecular weight of copolymers while preserving the corona-to-core ratio. Furthermore, by utilizing bond formation through the merging of patches, we successfully constructed colloidal molecules using multi-patch and single-patch micelles.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 15","pages":" 2354-2361"},"PeriodicalIF":6.0,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671319","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

Microwave-assisted ultrafast synthesis of an iron-based biomolecule-templated nanozyme with augmented peroxidase-mimetic activity† 微波辅助超快合成具有增强过氧化物酶模拟活性的铁基生物分子模板纳米酶

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-30 DOI: 10.1039/D5QM00285K

Ankur Sood, Soonmo Choi, Suhyeon Han, Sumanta Sahoo and Sung Soo Han

{"title":"Microwave-assisted ultrafast synthesis of an iron-based biomolecule-templated nanozyme with augmented peroxidase-mimetic activity†","authors":"Ankur Sood, Soonmo Choi, Suhyeon Han, Sumanta Sahoo and Sung Soo Han","doi":"10.1039/D5QM00285K","DOIUrl":"https://doi.org/10.1039/D5QM00285K","url":null,"abstract":"Recently, the inadequacies of natural enzymes, such as high production cost, reduced stability, and strenuous preparation methods, have been addressed by fabricating artificial nanozymes with exceptional stability, availability, and low production cost. Herein, a rapid, cost-effective, facile, and one-pot microwave-assisted synthesis was used to fabricate hemin/graphene nanocomposites (GF) as a nanozyme with peroxidase mimetic activity. During the process, hemin acted as the iron source to synthesize iron oxide nanoparticles (∼50 nm) uniformly decorated on the surface of reduced graphene oxide (rGO). Compared with rGO alone, the fabricated GF demonstrated an augmented capability to catalyse the reaction of colourless pyrogallol (Py) to its deep yellow oxidized product in the presence of hydrogen peroxide (H2O2). The focused synthetic approach resulted in high catalytic efficiency of the fabricated nanozyme in decomposing hydrogen peroxide with a ratio of 2 : 1 (graphene : hemin). The formed nanozymes were superparamagnetic with a magnetic moment (Ms) of ∼10.8 emu g−1. Additionally, the biocompatibility of the nanozyme was assessed on NIH3T3 skin fibroblast cells, where no cytotoxicity was witnessed, showing potential for the utility of the developed nanozyme for biomedical applications. This work implies an innovative approach to synthesizing enzyme-mimetic nanozymes using in situ microwave-assisted fabrication with applications in biomedicine, biocatalysis, and biosensing.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 14","pages":" 2213-2223"},"PeriodicalIF":6.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566815","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

Cell membrane-coated nanomicrospheres mimicking stem cell functions enhance angiogenesis for dental pulp regeneration† 模拟干细胞功能的膜包被纳米微球促进牙髓再生血管生成

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-30 DOI: 10.1039/D5QM00098J

Yao Chen, Jun Xie, Jing Gao, YuHan Wang, Xin Yue, Jiafei Qu, Dan Ding, Xiangyun Zhang, Jingrui Xin and Jing Shen

{"title":"Cell membrane-coated nanomicrospheres mimicking stem cell functions enhance angiogenesis for dental pulp regeneration†","authors":"Yao Chen, Jun Xie, Jing Gao, YuHan Wang, Xin Yue, Jiafei Qu, Dan Ding, Xiangyun Zhang, Jingrui Xin and Jing Shen","doi":"10.1039/D5QM00098J","DOIUrl":"https://doi.org/10.1039/D5QM00098J","url":null,"abstract":"Intact and healthy dental pulp is crucial for maintaining the integrity of teeth. A variety of impairments such as infection and trauma cause irreversible pulp damage, which require removal of pulp tissue and conventional root canal filling. However, this type of treatment fails to restore vital pulp. It is still a clinical challenge to discover how to regenerate pulp and prolong the lifespan of teeth. Regenerating tissues similar to dental structures with normal functions is putatively the aim in the tooth regeneration field. Currently, researchers preliminarily achieve tooth regeneration by applying dental pulp stem cells (DPSCs) and stem cells from human exfoliated deciduous teeth (SHED). While stem cell transplantation for pulp regeneration shows promise, it faces critical challenges including complex manipulation, low cell survival rates, and storage difficulties. This study introduces a novel nanoparticle-based biomimetic system that overcomes these limitations by emulating stem cell functions. Under hypoxic conditions, SHED release concentrated pro-angiogenic factors, which were encapsulated into cell membrane-coated nanomicrospheres, creating bionic dental pulp stem cells. This innovative design enables sustained and controlled cytokine release while maintaining biocompatibility through the protective cell membrane coating. In hindlimb ischemia and pulp regeneration models, the bionic system demonstrated significantly enhanced retention (48.58% at day 7 versus minimal SHED retention), superior blood perfusion restoration (72% of normal levels), and dramatically increased vascular density (7.6-fold higher than controls). This cell-free nano-delivery platform provides a stable, immune-compatible alternative for functional tissue regeneration, addressing key limitations of conventional stem cell therapies while offering practical advantages for clinical translation in the challenging environment of narrow root canals.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 15","pages":" 2384-2395"},"PeriodicalIF":6.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671322","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

Enhancing the stability and emission efficiency of circularly polarized luminescent materials for deep blue applications† 提高圆偏振发光材料在深蓝应用中的稳定性和发射效率

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-30 DOI: 10.1039/D5QM00119F

Si-Fan Lu, Meng-Na Jing, Mian-He Xu, Jian Lu, Fa-Kun Zheng and Guo-Cong Guo

引用次数: 0

Improving synergism in Ni-prussian blue analog/CNT composite via coordination engineering for highly stable K+-ion capacitor† 通过配位工程提高高稳定K+离子电容器在镍普鲁士蓝模拟物/碳纳米管复合材料中的协同作用

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-29 DOI: 10.1039/D5QM00274E

Sarathkumar Krishnan, Mayank K. Singh, Sheetal Gupta, Khushwant Singh, Xiaolei Wang and Dhirendra K. Rai

{"title":"Improving synergism in Ni-prussian blue analog/CNT composite via coordination engineering for highly stable K+-ion capacitor†","authors":"Sarathkumar Krishnan, Mayank K. Singh, Sheetal Gupta, Khushwant Singh, Xiaolei Wang and Dhirendra K. Rai","doi":"10.1039/D5QM00274E","DOIUrl":"https://doi.org/10.1039/D5QM00274E","url":null,"abstract":"Prussian blue analogs (PBAs), as redox-active metal–organic frameworks, offer great promise for hybrid supercapacitors but are hindered by low conductivity and limited cycling stability. In this work, we present a robust composite of nickel hexacyanoferrate (NiHCF) and carboxyl-functionalized multi-walled carbon nanotubes (CNTs), synthesized via a simple ultrasonication-driven coordination engineering method for K+-ion capacitor applications. The NiHCF/CNT composite, stabilised by coordination between the Ni2+/Fe3+ centers of NiHCF and the carboxylate groups on functionalized CNTs, achieves a high specific capacity of 223 C g−1 at 1 A g−1, significantly outperforming its pristine components. The composite exhibits exceptional electrochemical stability, with capacity increasing to ∼230% after 5000 cycles, attributed to the progressive activation of redox centers and improved electrolyte wettability. Density functional theory (DFT) calculations confirm enhanced electronic interactions and reduced bandgaps due to synergism between NiHCF and CNTs. The primary charge storage mechanism involves K+ ion (de)intercalation, as verified by ex situ P-XRD and EIS studies. A symmetric NiHCF/CNT//NiHCF/CNT supercapacitor device further demonstrates a high energy density of 18.07 Wh kg−1 and a power density of 10 kW kg−1, with 95.43% retention over 10 000 cycles. This study presents a rational design strategy focused on coordination bond formation between the metal centers of PBA and carboxyl groups on CNTs, which facilitates the effective compositization and enables enhanced charge storage capacity, exceptional cycling durability, and long-term performance in potassium-ion energy storage devices.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 15","pages":" 2367-2383"},"PeriodicalIF":6.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671321","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 rational synthetic approach to a highly active Fe–N–C catalyst for efficient electrochemical oxygen reduction† 高效电化学氧还原高活性Fe-N-C催化剂的合理合成方法

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-28 DOI: 10.1039/D5QM00269A

Sanjit Kumar Parida and Hrudananda Jena

{"title":"A rational synthetic approach to a highly active Fe–N–C catalyst for efficient electrochemical oxygen reduction†","authors":"Sanjit Kumar Parida and Hrudananda Jena","doi":"10.1039/D5QM00269A","DOIUrl":"https://doi.org/10.1039/D5QM00269A","url":null,"abstract":"Single atoms of iron coordinated to nitrogen embedded in a carbon support (Fe–N–C) are the most active platinum group metal-free catalysts for the oxygen reduction reaction (ORR) in renewable energy devices. However, Fe–N–C catalysts, usually derived from Fe-doped zeolitic imidazole frameworks, suffer from limited activity due to restricted utilization of their active sites, which are buried deep inside the carbon matrix. Herein, we report a unique and facile design approach based on the interplay between the oxidation state of Fe in the precursor and modulation of synthetic parameters to regulate the particle size, surface area and Fe doping towards increased accessible ORR active sites. The synthesized Fe–N–C catalyst demonstrates remarkably high ORR activity in 0.1 M KOH with an onset and half-wave potential of 0.988 V and 0.903 V vs. RHE, respectively, excellent 4e− selectivity and durability. Our work paves the way for a new discussion in understanding the role of fundamental parameters that affect the material's properties through a unique design strategy.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 14","pages":" 2250-2259"},"PeriodicalIF":6.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566819","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

Controlled radical release from iron oxide nanoparticles grafted with thermosensitive alkoxyamine triggered by external stimuli† 外部刺激引发的热敏烷氧胺接枝氧化铁纳米颗粒自由基释放控制

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-28 DOI: 10.1039/D4QM01022A

Farah Abdel Sater, Basile Bouvet, Saad Sene, Gautier Félix, Erwan Adriaenssens, Jean-Patrick Joly, Gerard Audran, Sylvain R. A. Marque, Joulia Larionova and Yannick Guari

{"title":"Controlled radical release from iron oxide nanoparticles grafted with thermosensitive alkoxyamine triggered by external stimuli†","authors":"Farah Abdel Sater, Basile Bouvet, Saad Sene, Gautier Félix, Erwan Adriaenssens, Jean-Patrick Joly, Gerard Audran, Sylvain R. A. Marque, Joulia Larionova and Yannick Guari","doi":"10.1039/D4QM01022A","DOIUrl":"https://doi.org/10.1039/D4QM01022A","url":null,"abstract":"We report an investigation of a controlled radical release produced by iron oxide nanoparticles (IONPs) of ca. 25 nm covalently grafted through phosphonic groups with a thermosensitive alkoxyamine, (6-(4-(1-((di-tert-butylamino)oxy)ethyl)benzamido)hexyl)phosphonate, having a relatively low homolysis temperature (kd = 6.4 × 10−4 s−1 at 77 °C, Ea = 117.8 kJ mol−1). Action of an alternating current magnetic field (AMF) or light irradiation at 808 nm produces a rapid heating of the nanoparticles’ surface, which induces the homolysis of the C–ON bond of alkoxyamines facilitating the efficient formation of free radicals. We demonstrated based on homolysis kinetics investigated by electron paramagnetic resonance (EPR) spectroscopy that light irradiation at 808 nm (2.6 W cm−2) enables efficient radical release from grafted nanoparticles at 44 °C (t1/2 = 23.6 min), whereas the free molecules required 20 h to show the same release at this temperature. AMF exposure accelerates the homolysis of alkoxyamine-grafted nanoparticles (16 kA m−1, 2.9 mg mL−1) twofold compared to the free alkoxyamine at 77 °C (t1/2 = 7.9 min vs. 18 min). These findings underscore the critical importance of localized nanoscale effects, demonstrating that the homolysis rate on the nanoparticle surface under external stimuli is significantly higher compared to that under external solution heating, with this enhancement being even more pronounced under light irradiation.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 16","pages":" 2522-2539"},"PeriodicalIF":6.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d4qm01022a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From NiCo-glycerate to tri-metallic selenide: engineering yolk–shell MnNiCoSe spheres with nanosheet arrays for hybrid supercapacitors† 从硝酸甘油到三金属硒化物：工程蛋黄壳MnNiCoSe球与纳米片阵列用于混合超级电容器†

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-28 DOI: 10.1039/D5QM00321K

Majid Shirvani and Davoud Nasr Esfahani

{"title":"From NiCo-glycerate to tri-metallic selenide: engineering yolk–shell MnNiCoSe spheres with nanosheet arrays for hybrid supercapacitors†","authors":"Majid Shirvani and Davoud Nasr Esfahani","doi":"10.1039/D5QM00321K","DOIUrl":"https://doi.org/10.1039/D5QM00321K","url":null,"abstract":"The progress of the supercapacitor industry heavily depends on the development and synthesis of novel electrode materials with specific architectures. Transition metal selenides have recently gained recognition as promising materials for energy storage devices due to their high theoretical capacitance and excellent electronic conductivity. This has spurred extensive research on mono- and di-selenide active materials. However, reports on tri-metallic selenides are scarce, and their charge storage mechanisms remain unclear. In this study, uniform NiCo-glycerate precursors were employed as sacrificial templates in combination with a selenization process to synthesize tri-metallic MnNiCoSe yolk–shell spheres encased in nanosheets through a straightforward self-templating method. The resulting MnNiCoSe electrode material demonstrates exceptional electrochemical performance, attributed to its numerous redox-active sites, large surface area with mesoporous pathways, high electrical conductivity, and the synergistic interaction of manganese, nickel, and cobalt elements. The MnNiCoSe electrode material exhibits a high specific capacity of 263.67 mA h g−1 at 1 A g−1, retains 76.63% of its capacity at 20 A g−1, and maintains 84.28% of its capacity after 10 000 GCD cycles. Moreover, the hybrid supercapacitor device, assembled using NiF@MnNiCoSe as the positive electrode and NiF@AC as the negative electrode, achieves an impressive energy density of 53.32 W h kg−1 at a power density of 1031.39 W kg−1.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 14","pages":" 2200-2212"},"PeriodicalIF":6.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566814","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

Dual blue fluorescence and green phosphorescence of a hybrid cadmium halide for anti-counterfeiting† 一种用于防伪的杂化镉卤化物的双蓝荧光和绿磷光

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2025-05-28 DOI: 10.1039/D5QM00243E

Qi Wang, Jian-Qiang Zhao, Peng-Yao Xuan, Xin-Yuan Li, Zhao-Xi Wang, Hao-Shuo Lu, Xiao-Wu Lei, Zhi-Hong Jing and Cheng-Yang Yue

{"title":"Dual blue fluorescence and green phosphorescence of a hybrid cadmium halide for anti-counterfeiting†","authors":"Qi Wang, Jian-Qiang Zhao, Peng-Yao Xuan, Xin-Yuan Li, Zhao-Xi Wang, Hao-Shuo Lu, Xiao-Wu Lei, Zhi-Hong Jing and Cheng-Yang Yue","doi":"10.1039/D5QM00243E","DOIUrl":"https://doi.org/10.1039/D5QM00243E","url":null,"abstract":"Zero-dimensional (0D) metal halide-based room-temperature phosphorescence (RTP) materials have received extensive attention with wide application prospects, but they still suffer from low phosphorescence efficiency, which restricts their progress in cutting-edge photonic applications. In this work, a new zero-dimensional (0D) cadmium halide [BTPP]2CdBr4 (BTPP = benzyl triphenylphosphonium bromide) was successfully synthesized through a room-temperature solution method. Under excitations of 357 nm and 309 nm UV light, [BTPP]2CdBr4 displays dual blue fluorescence and green phosphorescence with lifetimes of 1.38 ns and 76.18 ms, respectively. The quantum yield of phosphorescence reaches 43.68%, which exceeds that of most 0D metal halide-based RTP materials. Detailed experimental characterizations and theoretical calculations demonstrate that the fluorescence and phosphorescence originate from the radiative recombination of singlet self-trapped excitons (STEs) and triplet π–π* charge transfer in the [BTPP]+ cation, respectively. Benefitting from its dual luminescence, [BTPP]2CdBr4 can be explored as a dual space- and time-resolved luminescent label with applications in anti-counterfeiting and information security, among other fields. This work provides a fundamental structural engineering strategy to design highly efficient 0D metal halide-based RTP materials.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 15","pages":" 2396-2403"},"PeriodicalIF":6.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671298","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