Inorganic Chemistry Frontiers最新文献

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Interfacial synergistic regulation of MXene-composited nickel-cobalt double hydroxide for high-performance supercapacitors
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-24 DOI: 10.1039/d4qi02825b
Sheng Wan, Hanbo Wang, Yan Wang, Rui Wang, Dongyu Pei, Ziming Wang, Yumei Tian, Shi Zhan, kechang li, Haiyan Lu
{"title":"Interfacial synergistic regulation of MXene-composited nickel-cobalt double hydroxide for high-performance supercapacitors","authors":"Sheng Wan, Hanbo Wang, Yan Wang, Rui Wang, Dongyu Pei, Ziming Wang, Yumei Tian, Shi Zhan, kechang li, Haiyan Lu","doi":"10.1039/d4qi02825b","DOIUrl":"https://doi.org/10.1039/d4qi02825b","url":null,"abstract":"Nickel-cobalt double hydroxide is gaining significant interest due to its high theoretical specific capacitance. However, its tendency to agglomerate and low electrical conductivity present major challenges for its application. This study employed a one-step hydrothermal method to integrate exfoliated few-layer MXene materials with NiCo-LDH, facilitating the uniform vertical growth of NiCo-LDH nanosheets on the surface of the MXene, effectively minimizing agglomeration. Additionally, the interfacial synergy between MXene and NiCo-LDH enhances the transfer of electrons from NiCo-LDH to MXene, resulting in an electron-rich MXene and an oxygen vacancy-rich NiCo-LDH. Together, these characteristics significantly improve the electrochemical performance of the material at high current densities, achieving 7776 Wh kg−1 and 66.96 Wh k g−1 at 15 A g−1. After cycling 40,000 times, it retains an impressive capacity retention rate of 89.5%. These findings demonstrate that MXene materials effectively tackle the main challenges associated with NiCo-LDH, opening new possibilities for their application in electrode materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"34 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High density facet junctions in nano-stepped CuFeO2 enable efficient charge separation for selective photocatalytic CO2 reduction to CH4
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-24 DOI: 10.1039/d5qi00055f
Jingying Wei, Chun Guo, Dongfen Hou, Dailing Jia, Huaiguo Xue, Jingqi Tian, Tengfei Jiang
{"title":"High density facet junctions in nano-stepped CuFeO2 enable efficient charge separation for selective photocatalytic CO2 reduction to CH4","authors":"Jingying Wei, Chun Guo, Dongfen Hou, Dailing Jia, Huaiguo Xue, Jingqi Tian, Tengfei Jiang","doi":"10.1039/d5qi00055f","DOIUrl":"https://doi.org/10.1039/d5qi00055f","url":null,"abstract":"Facet junctions have been demonstrated to be effective in promoting the separation of photoinduced charges. However, the micro-size of photocatalysts with a limited density of facet junctions usually hinders the improvement of photocatalytic performance. In this work, we propose the synthesis of nanoscale CuFeO<small><sub>2</sub></small> through a hydrothermal and acid etching strategy, which leads to the formation of stepped CuFeO<small><sub>2</sub></small> hexagonal nanosheets with high-density facet junctions. Experimental characterization and density functional theory (DFT) calculations indicate that the steps are composed of horizontal (001) and vertical (−120) facets that form facet junctions, between which a work function difference of 0.74 eV induces the formation of a built-in electric field. Surface photovoltage measurements further demonstrate directional photoinduced electron transfer from (−120) to (001) to generate an electron-rich surface in CuFeO<small><sub>2</sub></small>. As a result, the stepped CuFeO<small><sub>2</sub></small> with high-density facet junctions exhibits superior photocatalytic performance in the reduction of CO<small><sub>2</sub></small> to CH<small><sub>4</sub></small> compared to non-stepped CuFeO<small><sub>2</sub></small>, with a rate of 43.79 μmol g<small><sup>−1</sup></small> h<small><sup>−1</sup></small> and 78% selectivity. <em>In situ</em> infrared spectroscopy further reveals that the stepped CuFeO<small><sub>2</sub></small> with a high density of facet junctions is more conducive to the formation of key CH<small><sub>3</sub></small>O* intermediates that promote CH<small><sub>4</sub></small> production.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"16 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Near-unity room-temperature phosphorescence quantum yield induced by halogen–halogen interaction in chiral hybrid copper(I) iodide clusters
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-24 DOI: 10.1039/d5qi00348b
Yanjing Qin, Jianwu Wei, Jing Li, Xianli Li, Binbin Luo, Peican Chen, Liya Zhou, Jin Zhong Zhang, Qi Pang
{"title":"Near-unity room-temperature phosphorescence quantum yield induced by halogen–halogen interaction in chiral hybrid copper(I) iodide clusters","authors":"Yanjing Qin, Jianwu Wei, Jing Li, Xianli Li, Binbin Luo, Peican Chen, Liya Zhou, Jin Zhong Zhang, Qi Pang","doi":"10.1039/d5qi00348b","DOIUrl":"https://doi.org/10.1039/d5qi00348b","url":null,"abstract":"Employing chiral (<em>R</em>/<em>S</em>)-4-chloro/bromo-α-methylbenzylamine (<em>R</em>/<em>S</em>-X-MBA, X = Cl, Br) as ligands, we prepare two zero-dimensional hybrid copper(<small>I</small>) iodide clusters, (<em>R</em>/<em>S</em>-Cl-MBA)<small><sub>4</sub></small>Cu<small><sub>4</sub></small>I<small><sub>4</sub></small> (<em>R</em>/<em>S</em>-Cl) and (<em>R</em>/<em>S</em>-Br-MBA)<small><sub>4</sub></small>Cu<small><sub>4</sub></small>I<small><sub>4</sub></small> (<em>R</em>/<em>S</em>-Br), <em>via</em> a simple room-temperature solvent-diffusion method. Both <em>R</em>/<em>S</em>-Cl and <em>R</em>/<em>S</em>-Br are in the <em>C</em>2 chiral space group with a monoclinic crystal system. Under 310 nm excitation, <em>R</em>/<em>S</em>-Cl and <em>R</em>/<em>S</em>-Br exhibit efficient orange and yellow broadband luminescence, featuring large Stokes shifts, microsecond lifetimes, and symmetric chiral CD signals. Interestingly, compared to <em>R</em>/<em>S</em>-Cl with a photoluminescence (PL) quantum yield (QY) of ∼46%, a near-unity PLQY is observed for <em>R</em>/<em>S</em>-Br, along with a longer PL lifetime (∼13.5 μs). The high PLQY is attributed to intermolecular halogen–halogen interactions, which greatly enhance lattice rigidity and suppress nonradiative recombination of triplet excitons. Furthermore, <em>R</em>/<em>S</em>-Br has been demonstrated for X-ray scintillator application. This work offers an effective strategy for designing multifunctional and efficient chiral phosphors.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"9 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pore Structure Modulation and Defect Engineering of Soft Carbon@Coal-Derived Hard Carbon for Enhanced Sodium Storage Application in SIBs
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-24 DOI: 10.1039/d4qi03237c
xinhui jin, Haoyu Ma, Guoping Liu, Xikun Zhang, Dong Wang, Dejie Mo, Jiangyan Xie, Li-rong Feng, Maochun Wu, Bao-Lian Su, Xiaohui Guo
{"title":"Pore Structure Modulation and Defect Engineering of Soft Carbon@Coal-Derived Hard Carbon for Enhanced Sodium Storage Application in SIBs","authors":"xinhui jin, Haoyu Ma, Guoping Liu, Xikun Zhang, Dong Wang, Dejie Mo, Jiangyan Xie, Li-rong Feng, Maochun Wu, Bao-Lian Su, Xiaohui Guo","doi":"10.1039/d4qi03237c","DOIUrl":"https://doi.org/10.1039/d4qi03237c","url":null,"abstract":"Hard carbon (HC) is regarded as the most promising commercial anode material for sodium-ion batteries (SIBs) due to its low cost, abundant sources, large reversible capacity, and suitability. Nevertheless, HC suffers from low initial coulombic efficiency (ICE), poor rate performance, and long-term cycling performance, significantly restricting its practical application. Herein, we proceed with defined regulation of the microcrystalline structure of coal-derived HC, which obtains the reduced surface defects and the increased interlayer spacing, further enhancing the sodium storage capacity of coal-derived HC as an anode material for SIBs by coating porous HC with soft carbon (SC). Meanwhile, we successfully synthesize high-performance SC@HC composite materials through chemical crosslinking reactions by innovatively adopting the sol-gel method and SC coating for the complex composition of coal. The SC@HC composite material as an anode in SIBs can deliver a reversible capacity of 320 mAh/g at 0.01 A/g, a high ICE of 89%, and good cycling stability (capacity retention of 80% after 400 cycles at 1 A/g). This work can rationally guide the design of low-defect and much more closed pores coal-derived HC materials and provide a feasible route for the development of high-performance HC-based anode materials for SIBs applications.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"44 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inorganic Chemistry Frontiers Outstanding Paper Awards 2014–2023
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-24 DOI: 10.1039/d5qi90012c
{"title":"Inorganic Chemistry Frontiers Outstanding Paper Awards 2014–2023","authors":"","doi":"10.1039/d5qi90012c","DOIUrl":"https://doi.org/10.1039/d5qi90012c","url":null,"abstract":"A graphical abstract is available for this content","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"7 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of PGSE NMR and ESI-MS Measurements on Methylaluminoxane
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-22 DOI: 10.1039/d4qi02982h
Luca Rocchigiani, Scott Collins, J. Scott McIndoe, Mikko Linnolahti
{"title":"Comparison of PGSE NMR and ESI-MS Measurements on Methylaluminoxane","authors":"Luca Rocchigiani, Scott Collins, J. Scott McIndoe, Mikko Linnolahti","doi":"10.1039/d4qi02982h","DOIUrl":"https://doi.org/10.1039/d4qi02982h","url":null,"abstract":"PGSE NMR and ESI-MS studies of different grades of hydrolytic MAO demonstrate that the average dimensions and anion distribution of MAO are correlated with one another, as revealed through studies of aging and gelation of a commercial formulation of MAO. Formulations featuring an anion distribution skewed to higher m/z ratios have significantly higher activator contents as measured by 1H NMR spectroscopy in otherwise very similar formulations. PSGE NMR studies in toluene vs. chlorobenzene media demonstrate that the average hydrodynamic dimensions of MAO are largely unaffected by solvent polarity, though aggregation behavior is somewhat sensitive to solvent polarity. As for catalyst activation and ion-pair speciation, the situation in polar solvents is complicated by the formation of solvated cations (and anions) in chlorobenzene which dramatically lower dimensions. DFT studies of model aluminoxane structures in the size range for MAO featuring a variety of architectures, molar mass and Me3Al content reveal that a linear correlation between Dt, as measured by PGSE NMR, can be related to molar mass using simple relationships and estimates of molecular volume if suitable high molecular weight standards are available. There is a reasonable agreement in molar mass with available ESI-MS data, recognizing that MAO is not monodisperse.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"183 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Iron Porphyrin Catalyzed Bromination of Unactivated C-H Bonds: Inhibition of Oxygen Rebound by Redox-Inactive Metal Ions 铁卟啉催化未活化 C-H 键的溴化反应:氧化还原不活跃的金属离子抑制氧反弹
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-22 DOI: 10.1039/d5qi00508f
Yiran Xu, Peng Wu, Duanfeng Xie, Yue Cui, Yuheng Zhang, Binju Wang, Mian Guo
{"title":"Iron Porphyrin Catalyzed Bromination of Unactivated C-H Bonds: Inhibition of Oxygen Rebound by Redox-Inactive Metal Ions","authors":"Yiran Xu, Peng Wu, Duanfeng Xie, Yue Cui, Yuheng Zhang, Binju Wang, Mian Guo","doi":"10.1039/d5qi00508f","DOIUrl":"https://doi.org/10.1039/d5qi00508f","url":null,"abstract":"Heme-containing oxygenases have been known to catalyze oxidation of unactivated C-H bonds. In most cases, hydroxylated compounds (alcohols) are the predominant products through oxygen rebound pathway. Alternatively, non-hydroxylated products can be obtained under certain conditions when the oxygen rebound pathway is inhibited. However, biomimetic oxidative functionalization reactions catalyzed by synthetic iron porphyrin complexes have yet to be explored, due to the fast oxygen rebound step. In this study, metal bromide LiBr was introduced to the iron-porphyrin catalyzed oxidation of hydrocarbons, such as cycloalkane, straight-chain alkanes and benzyl compounds. In all cases, brominated products were the sole products, indicating that the oxygen rebound pathway was completely inhibited in the presence of LiBr. Mechanistic studies combined with theoretical calculations revealed that the active intermediate iron(IV)-oxo porphyrin π-cation radical species interacted with lithium ion, which significantly inhibited the oxygen rebound pathway. As a result, a carbocation intermediate was formed which was responsible for the formation of brominated products. This carbocation mechanism is reminiscent of the P450 OleT<small><sub>JE</sub></small> and CYP19A1 enzymatic systems, in which the oxygen rebound is inhibited and desaturated products are obtained. These results demonstrate that the redox-inactive metal ion acting as Lewis-acid is capable to tune the reactivity of high-valent metal-oxo species from oxygen rebound to non-oxygen rebound, providing potential application to produce versatile organic compounds stem from simple hydrocarbons.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"214 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interfacial Interaction of Ag-MnOx Heterostructure for Efficient CO2 Electroreduction to CO and Aqueous Zn-CO2 Batteries
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-21 DOI: 10.1039/d5qi00374a
Chao Wen, Ziyin Xie, Na Wu, Lihui Dong, Bin Li, Zhengjun Chen
{"title":"Interfacial Interaction of Ag-MnOx Heterostructure for Efficient CO2 Electroreduction to CO and Aqueous Zn-CO2 Batteries","authors":"Chao Wen, Ziyin Xie, Na Wu, Lihui Dong, Bin Li, Zhengjun Chen","doi":"10.1039/d5qi00374a","DOIUrl":"https://doi.org/10.1039/d5qi00374a","url":null,"abstract":"Electrocatalytic CO2 reduction reaction (CO2RR) into valuable chemicals is an appealing way to ease the energy and environmental crises, but the development of efficient catalysts remains challenging. Herein, we reported a novel Ag-MnOx heterostructural catalyst and its high activity for CO2RR to CO. The obtained Ag-MnOx exhibits a CO Faraday efficiency (FECO) of up to 97.5% at −0.8 V vs reversible hydrogen electrode (RHE) and especially maintained a FECO above 90% within a broad potential window of 500 mV (−0.6 ~ −1.1 V vs. RHE). In addition, the CO₂RR performance was optimized using a flow cell, and Ag-MnOx catalyst reached a total current density of −255 mA cm-2 at −2.0 V vs. RHE. Our designed in-situ experiments and density functional theory (DFT) calculations unveil that the heterojunction interface formed between O-defective-rich MnOx and active Ag enhances CO2 adsorption and activation and simultaneously stabilizes the *COOH intermediate, thus leading to its superior catalytic performance. Furthermore, the Ag-MnOx catalyst used as cathode to assemble Zn-CO2 cell exhibits an ultimate power density of 13.63 mW cm−2 and rechargeable time over 65 h.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"17 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dimensional tunability and photoluminescence triggered by solvent encapsulation strategies in hybrid materials 混合材料的尺寸可调性和溶剂封装策略引发的光致发光
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-21 DOI: 10.1039/d5qi00331h
Bo Zhuang, Qiang-Qiang Jia, Zhi-Long Li, Jiu-Yang Liu, Ying Wang, Jia-Xun Li, Kun Ding, Zunqi Liu, Da-Wei Fu
{"title":"Dimensional tunability and photoluminescence triggered by solvent encapsulation strategies in hybrid materials","authors":"Bo Zhuang, Qiang-Qiang Jia, Zhi-Long Li, Jiu-Yang Liu, Ying Wang, Jia-Xun Li, Kun Ding, Zunqi Liu, Da-Wei Fu","doi":"10.1039/d5qi00331h","DOIUrl":"https://doi.org/10.1039/d5qi00331h","url":null,"abstract":"Hybrid organic–inorganic halides have emerged as promising candidates for optoelectronic applications such as smart sensors, photodetectors and optical memory, due to their structural tunability, environmental stability, and high photoluminescence quantum yield (PLQY). Despite these merits, integrating switchable dielectric responses with strong luminescence in low-dimensional hybrid antimony materials remains exceptionally rare. Therefore, adjusting the dimensionality and enhancing the photoluminescence properties of hybrid antimony materials remains an important challenge. Herein, two different dimensional hybrid antimony bromide materials, namely (IBA)2SbBr5 and (IBA)6SbBr6·3Br (IBA = isobutylamine), were synthesized using a solvent encapsulation strategy. By taking advantage of the subtle dynamics arising from the solution composition during crystal growth, we realized two distinct structures with a switchable dielectric response. (IBA)6SbBr6·3Br features an independent octahedral structure, and its low-dimensional contributes to a high quantum yield of 10.22%. In contrast, (IBA)2SbBr5, which has a 1D structure, exhibits a higher phase transition temperature, along with a ferroelastic phase transition. Our targeted synthesis provides effective tools to illuminate the structural factors contributing to photoluminescence and enables precise formation of hybrid organic–inorganic halides switching materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"56 7 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Achieving tunable ultra-broadband NIR emission originating from the two-site occupation of Cr3+ ions in Mg3Ga2SnO8:Cr3+
IF 7 1区 化学
Inorganic Chemistry Frontiers Pub Date : 2025-03-21 DOI: 10.1039/d5qi00395d
Pengcheng Luo, Dashuai Sun, Zeyu Lyu, Mingxiang You, Zheng Lu, Xiaowei Zhang, Luhui Zhou, Hongpeng You
{"title":"Achieving tunable ultra-broadband NIR emission originating from the two-site occupation of Cr3+ ions in Mg3Ga2SnO8:Cr3+","authors":"Pengcheng Luo, Dashuai Sun, Zeyu Lyu, Mingxiang You, Zheng Lu, Xiaowei Zhang, Luhui Zhou, Hongpeng You","doi":"10.1039/d5qi00395d","DOIUrl":"https://doi.org/10.1039/d5qi00395d","url":null,"abstract":"Near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs) are considered promising light sources for a variety of applications due to their cost-effectiveness, broadband emission, compact size, and high output power. The key to developing high-performance NIR pc-LEDs lies in the design of phosphors. In this study, we report a NIR Mg<small><sub>3</sub></small>Ga<small><sub>2</sub></small>SnO<small><sub>8</sub></small>:Cr<small><sup>3+</sup></small> (MGS:Cr<small><sup>3+</sup></small>) phosphor synthesized <em>via</em> a traditional high-temperature solid-state method. Under 450 nm excitation, MGS:Cr<small><sup>3+</sup></small> exhibited an intense tunable ultra-broadband NIR emission. By adjusting the concentration of Cr<small><sup>3+</sup></small> ions, the full width at half maximum (FWHM) of the spectrum was observed to be broadened from 151 to 223 nm, while the peak wavelength shifted from 715 to 833 nm. Crystal structure analysis, low-temperature spectra, and fluorescence decay curves revealed that these fascinating tunable characteristics originated from the two-site occupation of Cr<small><sup>3+</sup></small> ions. Additionally, the presented phosphor exhibited an impressive internal quantum efficiency (IQE = 57.8%) and superior photoluminescent thermal stability (<em>I</em><small><sub>423 K</sub></small>/<em>I</em><small><sub>303 K</sub></small> = 50%). Moreover, the fabricated NIR pc-LED devices based on the MGS:0.08Cr<small><sup>3+</sup></small> and MGS:0.02Cr<small><sup>3+</sup></small> samples proved their potential in night vision imaging, non-invasive detection, and plant growth illumination applications.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"70 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","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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