Journal of Luminescence最新文献

{"title":"Comparative study on scintillation and luminescence of Terbium-doped LaB3O6 crystalline and glass materials","authors":"N.D. Ton ,&nbsp;N.T. Luan ,&nbsp;J.Y. Cho ,&nbsp;E.J. Choi ,&nbsp;D.W. Jeong ,&nbsp;D. Joseph Daniel ,&nbsp;H.J. Kim ,&nbsp;S. Kothan ,&nbsp;J. Kaewkhao","doi":"10.1016/j.jlumin.2025.121510","DOIUrl":"10.1016/j.jlumin.2025.121510","url":null,"abstract":"<div><div>This study compares the scintillation and luminescence properties of terbium-doped lanthanum borate (LaB₃O₆: Tb) in crystalline and amorphous glass forms. Characteristic Tb³⁺ emissions arising from the ⁵D₄ to ⁷F₆–⁷F₃ transitions were observed in both phases. The crystalline form exhibits intrinsic host luminescence peaking around 320 nm, attributed to the LaB₃O₆ matrix. In contrast, the glass form offers high optical transmittance in the 400–900 nm range, allowing detection of the weaker ⁵D₃ to ⁷F₆–⁷F₄ transition of Tb³⁺. Synchrotron photoluminescence measurements at UVSOR reveal efficient host-to-Tb³⁺ energy transfer under vacuum-ultraviolet (VUV) excitation, explore new excitation bands, and clarify the origin of the intrinsic host emission. Scintillation performance varies with phase, reinforcing structure-dependent luminescence behaviors. These results highlight the critical role of the host matrix and its structure in governing energy transfer and emission dynamics, positioning LaB₃O₆: Tb as a promising material for UV photonics, scintillators, and UV-filtering applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121510"},"PeriodicalIF":3.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047067","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}

{"title":"Microstructure and optical properties of dual-line waveguides in Tm,Yb:YAG crystal fabricated by femtosecond laser direct writing","authors":"Hui Huang,&nbsp;Zhihao Zhang,&nbsp;Xiang Li,&nbsp;Yang Zhang,&nbsp;Lingxiu Chen,&nbsp;Xiaolan Xue,&nbsp;Yue Yu,&nbsp;Liwei Shi,&nbsp;Jun Tang,&nbsp;Chuanlei Jia","doi":"10.1016/j.jlumin.2025.121517","DOIUrl":"10.1016/j.jlumin.2025.121517","url":null,"abstract":"<div><div>In this work, dual-line waveguides are successfully fabricated in Tm,Yb:YAG crystals using femtosecond laser direct writing. The microstructural features of the waveguides are characterized by metallographic microscopy, and the end-face coupling experiments confirm the better guiding performance and low propagation loss in both the visible and near-infrared spectral regions. The effects of laser pulse energy and writing speed on waveguide structure and transmission performance are systematically investigated. Furthermore, reflectance-difference spectroscopy (RDS) and Micro-Raman spectroscopy are utilized to analyze the refractive index modification mechanism and lattice structural changes induced by the femtosecond laser. The results demonstrate the first direct observation of local optical anisotropy caused by stress-induced birefringence effects in Tm,Yb:YAG crystals using RDS. We reveal the microphysical nature of realizing effective optical field confinement and provide experience in developing high-performance integrated photonic devices based on rare-earth doped crystals.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121517"},"PeriodicalIF":3.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047105","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}

{"title":"Dy3+-doped Li2O−Gd2O3 −ZrO2−P2O5 glass: Scintillation behaviors and synchrotron X-ray imaging application","authors":"K. Payungkulanan ,&nbsp;M. Tungjai ,&nbsp;N. Wantana ,&nbsp;N. Chanthima ,&nbsp;C.S. Sarumaha ,&nbsp;P. Pakawanit ,&nbsp;C. Phoovasawat ,&nbsp;N. Intachai ,&nbsp;H.J. Kim ,&nbsp;S. Kothan ,&nbsp;J. Kaewkhao","doi":"10.1016/j.jlumin.2025.121514","DOIUrl":"10.1016/j.jlumin.2025.121514","url":null,"abstract":"<div><div>In this study, phosphate glass scintillators doped with varying concentrations of Dy₂O₃ were synthesized using the melt-quenching technique, aiming to develop high-performance scintillation materials for synchrotron X-ray imaging applications. The physical, structural, optical, luminescence and scintillation properties of the Dy:LiGdZrP glass samples were systematically investigated. This study found a gradual increase in the density, refractive index of glass samples with higher amounts of Dy₂O₃ doping. Distinct absorption peaks observed in the UV–Vis–NIR spectra confirm the incorporation of Dy³⁺ ions into the glass matrix. The photoluminescence (PL) spectra exhibited sharp emission peaks at 483 nm, 574 nm, 664 nm, and 753 nm, attributed to Dy³⁺ transitions. Among the samples, 1.00Dy:LiGdZrP showed the highest PL intensity, whereas the 0.50Dy:LiGdZrP glass demonstrated the strongest radioluminescence (RL) response. The Dy:LiGdZrP glasses exhibited millisecond-scale decay times, and the photoluminescence quantum yield (PLQY) of the 0.10Dy:LiGdZrP sample reached 34.01 %. Energy transfer studies confirmed efficient transfer from Gd³⁺ to Dy³⁺ ions. A reduction in the photoluminescence (PL) emission intensity of Gd³⁺ ions at 311 nm was observed alongside an increase in Dy³⁺ emission, indicating effective energy transfer from Gd³⁺ to Dy³⁺ ions. Additional evidence for this energy transfer mechanism was provided through decay time analysis (λ_Ex = 275 nm and λ_Em = 311 nm), which achieved the highest energy transfer efficiency of 79.77 % when the Dy₂O₃ concentration was 2.00 mol%. The integrated scintillation efficiency of the 0.50Dy:LiGdZrP sample reached approximately 11.21 % of that of a BGO crystal. Moreover, X-ray imaging assessments performed on the 0.50Dy:LiGdZrP sample yielded a spatial resolution of 10 lp/mm, emphasizing its viability as a promising material for high-resolution synchrotron-based X-ray imaging application.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121514"},"PeriodicalIF":3.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061024","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}

{"title":"Performance optimization of (InxGa1-xN QWs/GaN LQB) structures for vertical-cavity surface-emitting lasers","authors":"Hameed Ur Rehman ,&nbsp;Wengang Bi ,&nbsp;Fang Wang ,&nbsp;Yuhuai Liu","doi":"10.1016/j.jlumin.2025.121512","DOIUrl":"10.1016/j.jlumin.2025.121512","url":null,"abstract":"<div><div>GaN-based Vertical-Cavity Surface-Emitting Lasers (VCSELs) are widely used, but electron leakage in multiple-quantum-wells (MQWs) and poor hole injection-reduce carrier density, leading to lower radiative recombination and higher threshold currents. This work investigates the coupled effects of InGaN/GaN MQWs, the last quantum barrier (LQB), and composition-graded electron blocking layers (EBLs) on VCSEL performance. Increasing the In content from 28 % to 30 % and reducing QW thickness enhances conduction and valence band offsets, reducing electron escape and improving electron-hole recombination at 415 nm. Incorporating a composition-graded Al _0.30-0.25Ga _0.70-0.75N EBL with a thinner LQB lowers the effective valence band barrier, improving hole injection into the MQWs. These combined effects significantly increase hole concentration within the MQWs, enhancing overall device performance. Finally, a 12.6 % increase in the stimulated recombination rate, a lower threshold current of 6.8 mA vs. 7.5 mA, an improved output power of 0.81 mW vs. 0.75 mW, and a reduced threshold voltage (Vth) of 4.6 V vs. 4.8 V are demonstrated for the optimized design (Str-C) due to the optimized synergy among the MQWs, LQB, and the composition-graded EBL.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121512"},"PeriodicalIF":3.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011165","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}

{"title":"Photoluminescence origin in Bi3+-doped GdAlO3 perovskite","authors":"M. Baran ,&nbsp;V. Hreb ,&nbsp;A. Kissabekova ,&nbsp;A. Krasnikov ,&nbsp;V.V. Laguta ,&nbsp;L. Vasylechko ,&nbsp;S. Zazubovich ,&nbsp;Ya Zhydachevskyy","doi":"10.1016/j.jlumin.2025.121513","DOIUrl":"10.1016/j.jlumin.2025.121513","url":null,"abstract":"<div><div>Microcrystalline powders of GdAlO₃:Bi with different bismuth concentrations were synthesized by the modified sol-gel method. The pure orthorhombic perovskite structure of the investigated samples was confirmed by X-ray diffraction. Photoluminescence characteristics of GdAlO₃:Bi were investigated in the 4.2–500 K temperature range by the methods of steady-state and time-resolved luminescence spectroscopy. The ultraviolet emission spectrum of GdAlO₃:Bi is found to consist of two bands. The dominating 3.72 eV band is assigned to the electron transitions from the emitting and metastable levels of the triplet relaxed excited state of a single Bi³⁺ center, corresponding to the ³P_1,0 → ¹S₀ transitions of the free Bi³⁺ ion. A weak ≈3.65 eV band is attributed to the dimer {Bi³⁺ - Bi³⁺} center. The visible emission spectrum consists of two bands of an exciton origin centered at about 2.5 eV and 2.3 eV and assigned to the excitons localized around the single Bi³⁺ ions and dimer {Bi³⁺ - Bi³⁺} centers, respectively. The electron-transfer processes in the {Bi³⁺- Bi³⁺} pairs resulting in the appearance of the {Bi³⁺- Bi³⁺}-related UV and VIS luminescence are suggested. The influence of the magnetic field, created at the Bi³⁺ site by the magnetically ordered Gd³⁺ sublattice, on the decay kinetics of the triplet Bi³⁺ emission is found to be negligible. The effect of energy-transfer processes on the decay kinetics of this emission is discussed. The energies of the Bi³⁺ → Gd³⁺ and Bi³⁺ → Bi³⁺ electron-transfer transitions in GdAlO₃:Bi are estimated.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121513"},"PeriodicalIF":3.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011134","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}

{"title":"Cathodoluminescence degradation mechanism for europium coordination compound","authors":"Yiming Yin ,&nbsp;Dmitrii Kopytov ,&nbsp;Egor Latipov ,&nbsp;Ivan Khanbekov ,&nbsp;Yanan Zhu ,&nbsp;Valentina V. Utochnikova","doi":"10.1016/j.jlumin.2025.121509","DOIUrl":"10.1016/j.jlumin.2025.121509","url":null,"abstract":"<div><div>Lanthanide-based coordination complexes represent a promising class of materials for cathodoluminescence (CL) applications, offering sharp emission profiles and spectral tunability. However, their practical use has been limited by poor stability under electron-beam irradiation, particularly in organic systems. In this work, we investigate the cathodoluminescence degradation behavior of a model europium coordination compound Eu₂(tph)₃(Phen)₂(H₂O)₂ (tph = terephthalate, Phen = <em>o-</em>phenanthroline) under electron-beam excitation through time-resolved measurements, Raman spectroscopy, and structural analysis. The CL emission exhibits a two-stage decay regime: a rapid initial drop attributed to radiolytic degradation, followed by a slower exponential decay consistent with thermal decomposition. Mechanistic assignments were validated by systematically varying film thickness, incorporating a high-κ polysiloxane thermal paste, and comparing CL behavior at different accelerating voltages (3 kV and 7 kV). Enhanced heat dissipation effectively suppressed thermal degradation, extending the operational voltage window and mitigating carbonization, as confirmed by post-irradiation optical and spectroscopic analyses. Notably, this study reports the slowest degradation rate yet observed for lanthanide-based cathodoluminophores, clarifies the dual nature of CL degradation in hybrid systems and highlights the importance of radiolysis suppression for future device development.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121509"},"PeriodicalIF":3.6,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005099","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}

{"title":"Spectroscopic analysis of color-tunable LiLaMgWO6:Ln3+(Ln=Sm, Tb) phosphor for opto-electronic applications","authors":"Ashvini R. Pusdekar ,&nbsp;Nilesh S. Ugemuge ,&nbsp;Chhatrasal Gayner ,&nbsp;Esarat J. Ansari ,&nbsp;Nita B. Shinde ,&nbsp;Shruti K. Patle ,&nbsp;Prachita A. Patil ,&nbsp;Sanjiv V. Moharil","doi":"10.1016/j.jlumin.2025.121501","DOIUrl":"10.1016/j.jlumin.2025.121501","url":null,"abstract":"<div><div>This study investigates the tunable photoluminescence properties of LiLaMgWO₆ phosphors doped with Sm³⁺ and Tb³⁺ ions, synthesized through a solid-state reaction method. Structural analysis via X-ray diffraction confirmed the monoclinic double perovskite phase (space group <em>C</em>2/<em>m</em>), while energy-dispersive X-ray spectroscopy validated elements present in as prepared sample. SEM studies have confirmed the morphology. Raman spectroscopy revealed that co-doping enhances peak intensities, correlating with improved luminescent behaviour. Photoluminescence studies confirmed the emission of Sm³⁺ at 604 nm (⁴G_5/2 → ⁶H_7/2) for excitation of 404 nm (⁶H_5/2 → ⁴D_7/2), and for Tb³⁺, emission was observed at 545 nm (⁵D₄ →⁷F₅) for excitation of 305 nm. The energy transfer leads to improved PL intensity of the green emission band of Tb³⁺ ion via co-doping with Sm³⁺ ions. Lifetime analysis helps to verify the energy transfer mechanism. The wide color tunability from the reddish orange to green region and the changes in color purity of Tb³⁺ doped phosphors via Sm³⁺ doping is elucidated through CIE diagrams. Also, the CCT analysis indicates a warm nature of the emitted light. These findings highlight the potential of LiLaMgWO₆ Sm³⁺/Tb³⁺ phosphors for application in display technologies and white light-emitting diodes (wLEDs).</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"287 ","pages":"Article 121501"},"PeriodicalIF":3.6,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922035","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}

{"title":"Radio and thermoluminescence performances of Dy3+-doped phospho-tellurite glass for scintillation and dosimetry materials applications","authors":"P. Yasaka ,&nbsp;W. Thanyaphirak ,&nbsp;W. Wongwan ,&nbsp;A. Angnanon ,&nbsp;S. Khondara ,&nbsp;N. Intachai ,&nbsp;S. Kothan ,&nbsp;H.J. Kim ,&nbsp;J. Kaewkhao","doi":"10.1016/j.jlumin.2025.121486","DOIUrl":"10.1016/j.jlumin.2025.121486","url":null,"abstract":"<div><div>This study reports the development and comprehensive luminescence characterization of Dy³⁺-doped phospho-tellurite glasses with the composition (40–x)TeO₂–30P₂O₅–20ZnO–5Sb₂O₃–5Li₂O–xDy₂O₃ (x = 0.0–1.5 mol%). The glasses were synthesized using the conventional melt-quenching technique and investigated for their potential in scintillation and dosimetry applications. Photoluminescence spectra under 350 nm excitation exhibited intense visible emissions dominated by the ⁴F_9/2 → ⁶H_13/2 electric dipole transition, with maximum intensity at 1.0 mol% Dy₂O₃. Radioluminescence measurements performed under Cu-anode X-ray excitation (50 kV, 30 mA) revealed emission centered at 574 nm, with a relative intensity of approximately 2.26 % compared to BGO scintillators. Despite this lower yield, the material provided sufficient spatial resolution for X-ray imaging, achieving a modulation transfer function (MTF) of 11.2 LP/mm and resolving multilayered structures under varying tube currents. Additionally, thermoluminescence glow curves displayed a well-defined peak at 248 °C, with an activation energy of 0.54 eV and a frequency factor of 1.30 × 10⁴ s⁻¹, confirming the presence of stable trap centers suitable for radiation dosimetry. These results highlight the multifunctional nature of Dy³⁺-doped phospho-tellurite glasses as cost-effective, transparent, and versatile materials for combined scintillation imaging and TL-based dosimetry systems.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"287 ","pages":"Article 121486"},"PeriodicalIF":3.6,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933043","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}

{"title":"Sodium borate glass for radiation Dosimetry: Correlating Thermoluminescence emission with optical and EPR characterization","authors":"Caroline Paschoal Fernandes ,&nbsp;Rene Rojas Rocca ,&nbsp;Georgios S. Polymeris ,&nbsp;Nilo Francisco Cano ,&nbsp;Lilia Coronato Courrol ,&nbsp;Sonia Hatsue Tatumi","doi":"10.1016/j.jlumin.2025.121505","DOIUrl":"10.1016/j.jlumin.2025.121505","url":null,"abstract":"<div><div>Sodium borate (SB) glass was investigated as a potential material for thermoluminescent (TL) dosimetry. The TL emission is mainly concentrated in the ultraviolet region (250–400 nm), with glow peaks between 80 °C and 200 °C. The dose–response is linear from 2 to 1000 Gy, and the minimum detectable dose (MDD) is 58 mGy under standard conditions. To improve signal stability, a preheat step was introduced before TL readout, effectively removing unstable low-temperature components. Under this new condition, the MDD was revised to 160 mGy, and repeatability improved, with a reduced deviation of 4 %. Fading stabilized within 30 min, with only 3 % signal loss. Optical bleaching experiments revealed a gradual TL intensity reduction under blue light exposure, indicating the presence of optically sensitive traps. Electron paramagnetic resonance (EPR) analysis identified two defect centers induced by γ-irradiation. Among them, a center showing four-line hyperfine splitting was assigned to a boron-oxygen hole center (BOHC) and is associated with the TL peak at 155 °C, while another was attributed to an F⁺ center (peak at 288 °C), corresponding to a singly ionized oxygen vacancy. These results support the suitability of SB glass for high dose TL dosimetry applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"287 ","pages":"Article 121505"},"PeriodicalIF":3.6,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144925328","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}

{"title":"Luminescence and radiation response of Al2O3:Sb","authors":"L. Pan ,&nbsp;E.G. Yukihara ,&nbsp;L.G. Jacobsohn","doi":"10.1016/j.jlumin.2025.121504","DOIUrl":"10.1016/j.jlumin.2025.121504","url":null,"abstract":"<div><div>A review of the literature on previous attempts to engineer the luminescence of Al₂O₃ for radiation dosimetry is presented followed by the investigation of Sb³⁺ as a new recombination center for Al₂O₃. Materials were prepared by solution combustion synthesis, calcined in air at 1050 °C, and characterized by X-ray diffraction (XRD) and Raman spectroscopy. They were determined to be single alpha phase up to a Sb concentration of 0.5 mol% when the gamma phase was also observed. Luminescence under X-ray excitation showed the presence of an intense band around 411–423 nm, depending on the Sb concentration, not observed in undoped Al₂O₃. Under excitation at 343 nm, the photoluminescence lifetime was estimated to be ∼11 μs. The lifetime together with the thermal quenching behavior demonstrated this band not to be from F centers and the emission was attributed to Sb³⁺. Sb-doped Al₂O₃ exhibited both optically stimulated (OSL) and thermoluminescence (TL) responses. The OSL initial intensity was nearly 5x more intense than undoped Al₂O₃. TL results indicated high sensitivity and showed a linear response to the irradiation dose at least up to 3 Gy.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121504"},"PeriodicalIF":3.6,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005098","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}