Journal of Luminescence最新文献_第3页

Effect of Al(PO3)3 concentration on radiophotoluminescence properties in Ag-doped phosphate glasses Al(PO3)3浓度对掺银磷酸盐玻璃辐射光致发光性能的影响

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-20 DOI: 10.1016/j.jlumin.2025.121562

Hiroki Kawamoto, Yutaka Fujimoto, Keisuke Asai

{"title":"Effect of Al(PO3)3 concentration on radiophotoluminescence properties in Ag-doped phosphate glasses","authors":"Hiroki Kawamoto, Yutaka Fujimoto, Keisuke Asai","doi":"10.1016/j.jlumin.2025.121562","DOIUrl":"10.1016/j.jlumin.2025.121562","url":null,"abstract":"<div><div>Radiophotoluminescence (RPL) is an emission phenomenon arising from luminescence centers formed by ionizing radiation (RPL centers). Ag-doped phosphate glasses that exhibit RPL have been used in the personal dosimeter sold as “glass badge.” Previous studies have investigated both the RPL properties and the mechanism of RPL center formation in this glass. However, many issues concerning the RPL properties of this glass remain unresolved. In this study, we measured RPL and electron spinresonance (ESR) spectra of (1-x)NaPO<sub>3</sub>–xAl(PO<sub>3</sub>)<sub>3</sub>–0.0009Ag<sub>2</sub>O glasses to clarify how the RPL properties at room temperature depend on Al concentration in Ag-doped phosphate glasses. The sensitivity of the RPL intensity to X-rays decreased with increasing Al(PO<sub>3</sub>)<sub>3</sub> concentration, and the RPL properties were lost in glasses with higher Al contents (x = 0.8 and 1.0). The decrease in the sensitivity of the RPL intensity and the loss of the RPL properties are related to the reduction in ESR signal intensities and the absence of Ag<sup>2+</sup> and Ag<sub>2</sub><sup>+</sup> in the ESR spectra, respectively. In addition, the ESR signal of Ag<sup>0</sup> was also observed in the glasses that did not exhibit RPL. This result suggests that the presence of Ag<sup>0</sup> does not directly correlate with the exhibition of RPL properties.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121562"},"PeriodicalIF":3.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145226843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spectroscopic signature of local alloy fluctuations in InGaN/GaN multi-quantum-disk light emitting diode heterostructures and its impact on the optical performance InGaN/GaN多量子盘发光二极管异质结构中局部合金波动的光谱特征及其对光学性能的影响

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-19 DOI: 10.1016/j.jlumin.2025.121561

Soumyadip Chatterjee , Subhranshu Sekhar Sahu , Kanchan Singh Rana , Swagata Bhunia , Dipankar Saha , Apurba Laha

引用次数: 0

Luminescence kinetics in Ce-doped TbxGd3−xAl5O12 garnet with various terbium content 不同铽含量掺杂TbxGd3−xAl5O12石榴石的发光动力学

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-19 DOI: 10.1016/j.jlumin.2025.121555

Arnoldas Solovjovas , Saulius Nargelas , Gabija Soltanaitė , Žydrūnas Podlipskas , Yuriy Zorenko , Vitaliy Gorbenko , Etiennette Auffray , Gintautas Tamulaitis

{"title":"Luminescence kinetics in Ce-doped TbxGd3−xAl5O12 garnet with various terbium content","authors":"Arnoldas Solovjovas , Saulius Nargelas , Gabija Soltanaitė , Žydrūnas Podlipskas , Yuriy Zorenko , Vitaliy Gorbenko , Etiennette Auffray , Gintautas Tamulaitis","doi":"10.1016/j.jlumin.2025.121555","DOIUrl":"10.1016/j.jlumin.2025.121555","url":null,"abstract":"<div><div>In view of the current demand for fast scintillators for ionizing radiation detectors for high-energy physics experiments and medical imaging, the excitation transfer between host crystal and activator ions in activated scintillators is an increasingly important phenomenon. The current study is focused on the excitation transfer in Ce-doped terbium gadolinium aluminum garnets with different ratios of Tb and Gd ions in the host lattice. Scanning electron microscopy and cathodoluminescence images show that the liquid phase epitaxy (LPE) using PbO-B<sub>2</sub>O<sub>3</sub> flux ensures the fabrication of thin single-crystalline films of such scintillators of high structural homogeneity. Time-resolved photo- and cathodo-luminescence spectroscopy of the films revealed that the electron transfer from activator ion Ce<sup>3+</sup> to the nearest lattice-building ions Tb<sup>3+</sup> is faster than <em>vice versa</em>. The acceleration of the decay of Ce<sup>3+</sup> luminescence by the introduction of Tb is demonstrated, whereas the Tb<sup>3+</sup> ions emit prompt photons in the subnanosecond domain, but this emission is strongly quenched by nonradiative recombination. We show that the excitation transfer from Ce<sup>3+</sup> to the closest Tb<sup>3+</sup> is the dominant mechanism accelerating the emission decay of Tb<sub><em>x</em></sub>Gd<span><math><msub><mrow></mrow><mrow><mn>3</mn><mo>−</mo><mi>x</mi></mrow></msub></math></span>Al<sub>5</sub>O<sub>12</sub>:Ce operating as a scintillator.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121555"},"PeriodicalIF":3.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of plasmon-exciton interaction in IR luminescence of Ag2S quantum dots near Au nanorods for luminescent thermometry 等离子体-激子相互作用对金纳米棒附近Ag2S量子点红外发光的影响

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-19 DOI: 10.1016/j.jlumin.2025.121552

Oleg V. Ovchinnikov , Irina G. Grevtseva , Pavel A. Golovinski , Eldar I. Enikeev , Mikhail S. Smirnov , Tamara S. Kondratenko , Alexander O. Zhukov , Stanislav Yu. Belov

{"title":"Effect of plasmon-exciton interaction in IR luminescence of Ag2S quantum dots near Au nanorods for luminescent thermometry","authors":"Oleg V. Ovchinnikov , Irina G. Grevtseva , Pavel A. Golovinski , Eldar I. Enikeev , Mikhail S. Smirnov , Tamara S. Kondratenko , Alexander O. Zhukov , Stanislav Yu. Belov","doi":"10.1016/j.jlumin.2025.121552","DOIUrl":"10.1016/j.jlumin.2025.121552","url":null,"abstract":"<div><div>The actions of plasmon-exciton interaction are of great researchers' interest due to their application in photonic technologies, including the thermo-optical sensorics, photothermal catalysis, thermal metasurfaces for computing systems, optical information coding and recording systems. The work presents the results of studies demonstrating plasmon-exciton interaction in ensembles of colloidal Ag<sub>2</sub>S quantum dots (QDs) with an average size of 2.8 nm near metal Au nanorods (NRs), passivated with 2-mercaptopropionic acid under conditions of tuning/detuning spectral resonances in the NRs extinction and QDs luminescence. It is experimentally established that the luminescent properties of Ag<sub>2</sub>S QDs dependence on the overlap degree of the luminescence band with plasmon resonance peak. Under spectral resonance conditions, Ag<sub>2</sub>S QDs luminescence was quenched without changing the spectral line shape of luminescence band. Based on time-resolved luminescence data, this regularity is the result of photoinduced charge transfer between closely spaced mixture components. Detuning of spectral resonances of plasmon-exciton structure components leads to the luminescence quenching and asymmetry of Ag<sub>2</sub>S QDs luminescence band in both short and long wavelengths. Theoretical modeling of the Ag<sub>2</sub>S QDs luminescence near Au NRs in the framework of a semiclassical model was realized. It is concluded about the manifestation of the Fano effect, complicated by the average distance dispersion between the components of the plasmon-exciton mixture. Thus, the luminescent properties of Ag<sub>2</sub>S QDs near Au NRs can be tuned and used as luminescent sensors for thermoplasmonics applications taking into account their transformation as a result of plasmon-exciton interaction.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121552"},"PeriodicalIF":3.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photon echo of Er3+ ions in CaMoO4 and ZnWO4 crystals CaMoO4和ZnWO4晶体中Er3+离子的光子回波

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-18 DOI: 10.1016/j.jlumin.2025.121546

M.M. Minnegaliev , K.I. Gerasimov , K.A. Subbotin , A.I. Titov , A.V. Lebedev , S.A. Avanesov , A. Hammoud , S.A. Moiseev

引用次数: 0

Study of OSL response of LiMgPO4: Al phosphors LiMgPO4: Al荧光粉OSL响应的研究

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-18 DOI: 10.1016/j.jlumin.2025.121557

Noemi Aguiar Silva , Alvaro de Farias Soares , Isadora Augusta Machado Duque , Lilia Coronato Courrol , Marcio Yee , Nilo Francisco Cano , Rene Rojas Rocca , Sonia Hatsue Tatumi

{"title":"Study of OSL response of LiMgPO4: Al phosphors","authors":"Noemi Aguiar Silva , Alvaro de Farias Soares , Isadora Augusta Machado Duque , Lilia Coronato Courrol , Marcio Yee , Nilo Francisco Cano , Rene Rojas Rocca , Sonia Hatsue Tatumi","doi":"10.1016/j.jlumin.2025.121557","DOIUrl":"10.1016/j.jlumin.2025.121557","url":null,"abstract":"<div><div>The optically stimulated luminescence (OSL) properties of LiMgPO<sub>4</sub> (LMP) phosphor were thoroughly investigated to assess the impact of aluminum (Al) doping on its luminescent behavior, particularly in terms of its dose response to ionizing radiation and its emission characteristics. Undoped LMP and doped with different Al concentrations crystals were synthesized via a solid-state reaction method. Structural and morphological characterizations, performed using scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS), confirmed the effective and homogeneous incorporation of Al into the crystal lattice, with no evidence of secondary phases or dopant segregation. A remarkable enhancement in both continuous-wave (CW-OSL) and linear-modulated (LM-OSL) luminescence responses to β-irradiation was observed in the Al-doped samples when compared to the undoped ones. To gain deeper insight into the trapping and recombination mechanisms, the CW-OSL and LM-OSL signals were deconvoluted general-order kinetic (GOK) model. Moreover, emission spectra measurements under 259 nm excitation revealed six distinct emission bands located at 2.68, 2.83, 2.94, 3.11, 3.38, and 3.85 eV, which are likely associated with OSL-related recombination processes. The minimum detectable dose of 6.5 μGy was obtained for 1 % Al-doped LMP, which confirms that the material has potential as a UV–VIS emitting dosimetric phosphor.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121557"},"PeriodicalIF":3.6,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145107193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electron trap energy distribution in triphasic ZrO2 nanoparticle and its dosimetric characteristics 三相ZrO2纳米颗粒中的电子阱能量分布及其剂量学特性

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-17 DOI: 10.1016/j.jlumin.2025.121554

J.M. Kalita , M.L. Chithambo

{"title":"Electron trap energy distribution in triphasic ZrO2 nanoparticle and its dosimetric characteristics","authors":"J.M. Kalita , M.L. Chithambo","doi":"10.1016/j.jlumin.2025.121554","DOIUrl":"10.1016/j.jlumin.2025.121554","url":null,"abstract":"<div><div>Electron trap energy distribution in ZrO<sub>2</sub> prepared by wet chemical synthesis is studied using thermoluminescence (TL). The sample has 70 % monoclinic phase ZrO<sub>2</sub>, 25 % cubic phase ZrO<sub>2</sub> and 5 % tetragonal phase ZrO<sub>2</sub>. The morphology of its grains is spherical with average size 18.5 ± 3.5 nm as determined by a field-emission scanning electron microscopy. A TL glow curve recorded at 1 <sup>o</sup>C/s following beta irradiation to 10 Gy has an apparently single peak near 75 °C. Kinetic analysis of this glow peak reveals that the peak is composed of several overlapping components. The activation energies of these components lie between 0.40 and 0.80 eV. The activation energies associated with the component traps follow a Gaussian distribution with the maximum at 0.57 ± 0.01 eV and a width of 0.11 ± 0.01 eV. The glow peak shows sublinear dose response between 1 and 15 Gy with the superlinearity index <em>g</em>(<em>D</em>) equal to 0.92 ± 0.01. The glow peak fades with delay between irradiation and measurement. The intensity, noted as peak height decreases by half about 1670 s after irradiation. The glow peak is reproducible. The coefficient of variation of the peak position, peak height and peak area in 20 identical measurements are 1.39, 0.95 and 0.62 % respectively. The TL is attributed to oxygen vacancies (F and F<sup>+</sup> centres) and intrinsic Ti<sup>3+</sup> impurities.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121554"},"PeriodicalIF":3.6,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145107078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Single Co atoms in B-modulated graphitic carbon nitride realizing chemiluminescence enhancement in non-luminol system for folic acid detection b调制石墨氮化碳中单Co原子在非发光胺体系中实现叶酸检测的化学发光增强

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-17 DOI: 10.1016/j.jlumin.2025.121556

Suxing Jiao , Yingzi Liu , Kuangjun Li, Zhiqiang Wang, Jing Wu

{"title":"Single Co atoms in B-modulated graphitic carbon nitride realizing chemiluminescence enhancement in non-luminol system for folic acid detection","authors":"Suxing Jiao , Yingzi Liu , Kuangjun Li, Zhiqiang Wang, Jing Wu","doi":"10.1016/j.jlumin.2025.121556","DOIUrl":"10.1016/j.jlumin.2025.121556","url":null,"abstract":"<div><div>Low emission intensity hinders the broader application of chemiluminescence (CL) analysis, although it is regarded as a useful analytical technique owing to its several advantages, such as absence of background interference, ease of operation, and cost-effectiveness. Consequently, it is essential to develop effective sensitizers to improve CL performance. Single-atom catalysts (SACs) have emerged as a promising class of catalysts, exhibiting tunable properties through regulating the coordination environment and microenvironment surrounding the central single atoms. In this work, Co-N<sub>4</sub> sites anchored B-modulated graphitic carbon nitride (Co-B-C<sub>3</sub>N<sub>4</sub> SACs) was designed as a CL catalyst to tailor the energy levels involved in the H<sub>2</sub>O<sub>2</sub> adsorption pathway which was a critical step during the CL process. Experimental data and theoretical calculations synergistically proved that B-doping altered the electron distribution of Co atoms, thereby catalyzing the target CL reactions and promoting the generation of reactive oxygen species. The CL emission of NaHSO<sub>3</sub>-H<sub>2</sub>O<sub>2</sub> system was significantly enhanced by Co-B-C<sub>3</sub>N<sub>4</sub> SACs. Furthermore, a CL sensor was constructed for folic acid detection, achieving a broad linear concentration range of 2.5–250 μM and a low detection limit of 41 nM.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121556"},"PeriodicalIF":3.6,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145107197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving up-conversion enhancement of NaGdF4:Er/Tm/Yb@NaLnF4 (Ln=Gd,Y) core-shell structured phosphors for ratiometric temperature sensing 实现NaGdF4:Er/Tm/Yb@NaLnF4 （Ln=Gd，Y）核壳结构荧光粉的上转换增强

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-17 DOI: 10.1016/j.jlumin.2025.121560

Xuecheng Li, Zhenjie Liu, Ke Ding, Haoyue Hao, Liang Li

{"title":"Achieving up-conversion enhancement of NaGdF4:Er/Tm/Yb@NaLnF4 (Ln=Gd,Y) core-shell structured phosphors for ratiometric temperature sensing","authors":"Xuecheng Li, Zhenjie Liu, Ke Ding, Haoyue Hao, Liang Li","doi":"10.1016/j.jlumin.2025.121560","DOIUrl":"10.1016/j.jlumin.2025.121560","url":null,"abstract":"<div><div>In this study, the temperature dependent up-conversion luminescence properties of the core-shell structured NaGdF<sub>4</sub>: Er/Tm/Yb@NaLnF<sub>4</sub> (Ln = Gd, Y) phosphors are studied. After coating with the inert shell, the emission intensity from the phosphors is enhanced, with the maximum luminescence enhancement of 5.16 for the NaGdF<sub>4</sub> shell and 3.80 for the NaYF<sub>4</sub> shell. The reason for the enhancement is that the shell layers of the core-shell structured phosphors can prevent the energy transfer from the florescent center to surface defect and then improve the emission intensity from the Er<sup>3+</sup> and Tm<sup>3+</sup> ion. The temperature sensing properties of the 0.5Er/0.5Tm/30 Yb@100Gd and 0.5Er/0.5Tm/30 Yb@100Y phosphors are studied, with a maximum thermally coupled sensitivity (Sᵣ) of 1.1 % K<sup>−1</sup> at 303 K and a non-thermally coupled sensitivity of 3 % K<sup>−1</sup> at 423 K, making them suitable for temperature sensing at room and high temperature ranges.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121560"},"PeriodicalIF":3.6,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145107194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancement of scintillation performance in (C6H5C2H4NH3)2PbBr4 through Mg-substitution mg取代增强（C6H5C2H4NH3）2PbBr4的闪烁性能

IF 3.6 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-09-17 DOI: 10.1016/j.jlumin.2025.121551

Daisuke Nakauchi , Naoki Kawano , Takumi Kato , Noriaki Kawaguchi , Takayuki Yanagida

引用次数: 0