Luminescence最新文献

Development and Validation of a Simple, Sensitive Fluorescent Method for Eurycomanone Quantification in Tongkat Ali Using Nitrogen-Doped Carbon Quantum Dots and Box–Behnken Design Optimization

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-22 DOI: 10.1002/bio.70176

Saud Alqahtani, Ali Alqahtani, Taha Alqahtani, Abdulrhman Alsayari, Ahmed A. Almrasy

{"title":"Development and Validation of a Simple, Sensitive Fluorescent Method for Eurycomanone Quantification in Tongkat Ali Using Nitrogen-Doped Carbon Quantum Dots and Box–Behnken Design Optimization","authors":"Saud Alqahtani, Ali Alqahtani, Taha Alqahtani, Abdulrhman Alsayari, Ahmed A. Almrasy","doi":"10.1002/bio.70176","DOIUrl":"https://doi.org/10.1002/bio.70176","url":null,"abstract":"<div>\u0000 \u0000 Eurycoma longifolia Jack, commonly known as Tongkat Ali, is a medicinal herb traditionally valued for its aphrodisiac properties, with eurycomanone being its principal bioactive quassinoid. This study introduces a novel, cost-effective method for the sensitive detection of eurycomanone using nitrogen-doped carbon quantum dots (N-CQDs) as a fluorescent probe. The spectral characteristics of the probe were carefully analyzed using UV–vis and fluorescence spectrophotometric techniques, and the sensing mechanism was investigated through Stern–Volmer and thermodynamic studies, revealing a static quenching interaction. A Box–Behnken design of experiment was applied to optimize the sensing conditions including pH, incubation time, and probe concentration, ensuring high sensitivity and robustness. A reduced quadratic model was found significant (p value > 0.0001) with pH and N-CQDs concentration being the most influential factors. The method was rigorously validated following ICH guidelines displaying excellent linearity in the range of 0.25–6.0 μg/mL, high sensitivity (LOD 0.067 μg/mL), and high accuracy and precision (RSD < 1.5%). The proposed technique was successfully applied to the analysis of real Tongkat Ali samples, demonstrating its practical utility in herbal analysis. The results showed good agreement with reported chromatographic methods, positioning the technique as a promising alternative to conventional analytical methods.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A Chemiluminescence Method Based on Cl, S, N Co-Doped Carbon Dots for the Rapid Determination of Folic Acid in Foods

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-21 DOI: 10.1002/bio.70175

Jiaoyan Xie, Suqin Han

{"title":"A Chemiluminescence Method Based on Cl, S, N Co-Doped Carbon Dots for the Rapid Determination of Folic Acid in Foods","authors":"Jiaoyan Xie, Suqin Han","doi":"10.1002/bio.70175","DOIUrl":"https://doi.org/10.1002/bio.70175","url":null,"abstract":"<div>\u0000 \u0000 Folic acid (FA) is a crucial B vitamin for cell formation and maintenance, and its deficiency can lead to severe health disorders, highlighting the importance for accurate FA detection. Chemiluminescence (CL) provides a highly sensitive analytical approach, characterized by simple instrumentation, high accuracy, and low background interference. However, traditional CL techniques are often limited by weak signal intensity and poor robustness. This study presents a novel CL system using well-defined fluorescent Cl, S, N co-doped carbon dots (ClSN-CDs) integrated into the H2O2-KBrO3 system. Under acidic conditions, the synergistic effect of H2O2 and KBrO3 induced ClSN-CDs to emit a strong CL signal, with the emitting species identified as excited-state ClSN-CDs. Trace amounts of FA significantly quenched the CL intensity of the ClSN-CDs-H2O2-KBrO3 system, enabling rapid, sensitive, and selective FA detection. The system demonstrated a linear response to FA concentrations ranging from 0.02 to 1.0 μM, with a detection limit of 3.1 nM. Selectivity and recovery studies validated the system's robust analytical performance. Mechanistic investigations revealed that the CL reaction involved reactive oxygen species (ROS), and FA-mediated ROS consumption led to luminescence suppression.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A Comprehensive Study of Nuanced Properties of Dy3+-Doped Alkaline Earth Silicates for Noncontact Thermometry Applications 掺杂 Dy3+ 的碱土硅酸盐在非接触温度测量应用中的细微特性综合研究

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-15 DOI: 10.1002/bio.70167

Tejas, Princy A, S. Masilla Moses Kennedy, Kalpataru Panda, M. I. Sayyed, Taha A. Hanafy, Sudha D. Kamath

{"title":"A Comprehensive Study of Nuanced Properties of Dy3+-Doped Alkaline Earth Silicates for Noncontact Thermometry Applications","authors":"Tejas, Princy A, S. Masilla Moses Kennedy, Kalpataru Panda, M. I. Sayyed, Taha A. Hanafy, Sudha D. Kamath","doi":"10.1002/bio.70167","DOIUrl":"https://doi.org/10.1002/bio.70167","url":null,"abstract":"<div>\u0000 \u0000 Luminescence materials activated with rare-earth ions for use in optical thermometers and lighting have garnered increasing attention in recent times. In this work, the problem has been tried to resolve by preparing Ba2ZnSi2O7: Dy3+phosphor. X-ray diffraction shows their structure as monoclinic which was further confirmed by Rietveld refinement techniques. Optical studies have been done to confirm their luminescence properties. Stimulated at 351 nm, the as-prepared phosphors show blue (469 nm) and yellow (577 nm) emissions. The 4F9/2 ➔ 6HJ (J = 13/2, 15/2) transitions of Dy3+ ions are responsible for these emissions, and they were also utilized to optimize the dopant concentration. The latter has two types of fluorescence intensity ratios and a type of excitation intensity ratio with maximum relative sensitivities of 2.05% K−1 and 1.96% K−1, respectively. Using an optimized phosphor, which exhibits good optical temperature measuring capabilities, a temperature measurement model was constructed using the fluorescence lifetime (FLT), with a maximum value of SR = 5.42% K−1. The generated Dy3+-doped Ba2ZnSi2O7 phosphors can thus be a good option for UV-excitable warm lighting systems and noncontact optical thermometry measurements, in the light of every experimental finding.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Mechanism Responsible for Changes in the Luminescence Properties of Terbium (III)–Doped Layered Double Hydroxides During Carbonate/Chloride Exchange

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-14 DOI: 10.1002/bio.70174

Ryo Sasai, Kaoru Ohta, Kohei Makishima, Takuya Fujimura, Chikako Moriyoshi, Jun Kumagai, Shogo Kawaguchi

{"title":"Mechanism Responsible for Changes in the Luminescence Properties of Terbium (III)–Doped Layered Double Hydroxides During Carbonate/Chloride Exchange","authors":"Ryo Sasai, Kaoru Ohta, Kohei Makishima, Takuya Fujimura, Chikako Moriyoshi, Jun Kumagai, Shogo Kawaguchi","doi":"10.1002/bio.70174","DOIUrl":"https://doi.org/10.1002/bio.70174","url":null,"abstract":"Layered double hydroxides (LDHs) have been actively studied as water purification, battery, capacitor, and catalytic materials because they exhibit anion-exchange capabilities. Furthermore, photoluminescent LDHs are potentially useful as materials capable of detecting toxic anions. These materials can be synthesized using various combinations of divalent and trivalent metal cations. Herein, we investigate the synthesis and photoluminescence (PL) properties of Mg (Al, Tb)-LDHs with different incorporated interlayer anions, specifically carbonate (CO32−) and chloride (Cl−). The CO32−-incorporated Mg (Al, Tb)-LDH was synthesized using a hydrothermal method, whereas Cl− was introduced through anion exchange. Characterization techniques confirmed that Tb3+ has been successfully doped into the LDH structure without impurities. The CO32−-incorporated Mg (Al, Tb)-LDH was significantly more photoluminescent than its Cl− counterpart. However, further analysis using electron spin resonance and X-ray absorption fine structure techniques revealed that the Tb3+ electronic state is unaffected by the anionic species. Synchrotron radiation X-ray diffractometry and subsequent Rietveld analysis revealed that thermal fluctuations of the anionic species and hydrated water in the interlayer space are the primary factors that influence PL intensity. These findings highlight the crucial role played by the thermal stabilities of the interlayer components in determining the PL properties of Mg (Al, Tb)-LDH.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70174","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Characterization of Novel Luminol-Based Carbon Dots for Dual-Mode Chemiluminescence and Fluorescence Detection of Nitrite in Water Samples

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-13 DOI: 10.1002/bio.70169

Hazha Omar Othman, Suzan Salahaddin Taha, Diyar Salahuddin Ali, Rebwar Omar Hassan

{"title":"Synthesis and Characterization of Novel Luminol-Based Carbon Dots for Dual-Mode Chemiluminescence and Fluorescence Detection of Nitrite in Water Samples","authors":"Hazha Omar Othman, Suzan Salahaddin Taha, Diyar Salahuddin Ali, Rebwar Omar Hassan","doi":"10.1002/bio.70169","DOIUrl":"https://doi.org/10.1002/bio.70169","url":null,"abstract":"<div>\u0000 \u0000 A green hydrothermal method was used to synthesize luminol-based carbon dots (Lu-CDs) for chemiluminescence (CL) and fluorescence (FL) detection of nitrite ions in water samples. Lu-CDs were characterized by using different techniques. The morphology indicates a spherical shape and an amorphous crystalline structure. A reversed flow injection analysis (rFIA) CL detection method was developed based on the Lu-CDs-N-bromosuccinimide-NaOH system, where the CL signal was quenched by nitrite ions. For FL analysis, Lu-CDs exhibited blue fluorescence at 425 nm (quantum yield: 56.42%) upon 350 nm excitation, which was quenched by nitrite ions at pH 6.5. Reaction conditions and parameters were optimized for both methods. The CL and FL methods showed linearity for nitrite concentrations of 1.5–20.0 μg mL−1 and 0.85–50.0 μg mL−1, with detection limits of 0.75 and 0.55 μg mL−1, respectively. Applicability was validated through tap and groundwater analysis, showing agreement with a standard spectrophotometric method (Student's t-test, F-test). The greenness of the developed methods was evaluated using the AGREE and GAPI tools, while their applicability was assessed with the BAGI tool, highlighting their eco-friendly and reliable nature for nitrite detection in water.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Thermoluminescence Characteristics of Alpha/Gamma Irradiated-Aluminum Nitride

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-11 DOI: 10.1002/bio.70170

Rodrigo Martinez-Baltezar, E. F. Huerta, U. Caldiño, Emma Cortés-Ortiz, Juan Azorín-Nieto

{"title":"Thermoluminescence Characteristics of Alpha/Gamma Irradiated-Aluminum Nitride","authors":"Rodrigo Martinez-Baltezar, E. F. Huerta, U. Caldiño, Emma Cortés-Ortiz, Juan Azorín-Nieto","doi":"10.1002/bio.70170","DOIUrl":"https://doi.org/10.1002/bio.70170","url":null,"abstract":"Aluminum nitride doped with unintentional impurities was synthesized using the NH₄Cl(s)-assisted vapor-phase reaction method. X-ray diffraction (XRD) confirmed the formation of the hexagonal wurtzite phase with lattice parameters a = 3.111 Å and c = 3.978 Å. Energy-dispersive spectroscopy (EDS) detected the presence of Al, N, C, O, Si, and Fe in the aluminum nitride. Fourier-transform infrared spectroscopy (FTIR) and Raman spectroscopy confirmed characteristic vibrational modes, further supporting the crystalline structure. Photoluminescence (PL) analysis revealed two excitation peaks at 280 and 335 nm, associated with CNSiAl, VAl3ON, and CNVN complex defects. The emission spectrum exhibited a predominant peak at 405 nm, in agreement with previous reports, suggesting a correlation with VAl2ON defects. Thermoluminescence (TL) measurements showed glow curves with peaks at 460, 525, and 600 K, confirmed through second derivative and deconvolution analysis. Activation energy values (0.69 and 0.45 eV) align with those reported for SiAl defects. The TL response displayed saturation at approximately 140 Gy, with the third peak exhibiting a linear response in the range of 12.6–136 Gy. These results highlight the potential of AlN for TL applications, emphasizing the role of unintentional impurities in defect formation and luminescence properties.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Violet to Greenish Fluorogenic Ratiometric Probe for Selective and Sensitive Detection of Phosphate (PO43−) Ion

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-11 DOI: 10.1002/bio.70172

Subekchha Pradhan, Jyoti Chourasia, Akash Deep Jaiswal, Upika Darnal, Najmin Tohora, Sabbir Ahamed, Shraddha Rai, Shubham Lama, Sudhir Kumar Das

{"title":"A Violet to Greenish Fluorogenic Ratiometric Probe for Selective and Sensitive Detection of Phosphate (PO43−) Ion","authors":"Subekchha Pradhan, Jyoti Chourasia, Akash Deep Jaiswal, Upika Darnal, Najmin Tohora, Sabbir Ahamed, Shraddha Rai, Shubham Lama, Sudhir Kumar Das","doi":"10.1002/bio.70172","DOIUrl":"https://doi.org/10.1002/bio.70172","url":null,"abstract":"<div>\u0000 \u0000 Phosphate (PO43−) ions play pivotal parts in the biological system as it provides key nutrients indispensable for sustaining life and also has vast applications in the industrial fields. However, surplus amount of PO43− ion can be very hazardous and cause serious health issues in various aspects of life, which makes the targeted and precise identification of PO43− ion essential. In this study, we have chosen an amino-imidazole-based probe, 2-(2-aminophenyl)-1H-benzimidazole (IMIDA), which undergoes distinct photophysical change, resulting in a significant violet to greenish fluorescence enhancement in the presence of PO43− ion. The probe IMIDA exhibits excellent sensitivity, selectivity, and prompt response towards PO43− ion having detection and quantification limit in the nM range, which makes it commendable for its monitoring. A handy paper strip and smartphone-based detection strategy are executed for the on-spot detection of PO43− ion. The applicability of the probe is further illustrated by the detection of PO43− ion in environmental conditions by using different water samples. Thus, the present study provides a robust, simple, and efficient scaffold for the detection of PO43− ion, extending opportunities for advancement in environmental monitoring, industrial quality control, and biomedical diagnostics.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Spectroscopic Visualization of Drug–Biomolecules Interactions: An Insight to Fluorescence Quenching as Tool in Drug Discovery 药物-生物分子相互作用的光谱可视化：透视作为药物发现工具的荧光淬灭法

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-11 DOI: 10.1002/bio.70168

Vivek Pandey, Tejasvi Pandey

{"title":"Spectroscopic Visualization of Drug–Biomolecules Interactions: An Insight to Fluorescence Quenching as Tool in Drug Discovery","authors":"Vivek Pandey, Tejasvi Pandey","doi":"10.1002/bio.70168","DOIUrl":"https://doi.org/10.1002/bio.70168","url":null,"abstract":"<div>\u0000 \u0000 Fluorescence quenching, a process where the intensity of fluorescence is diminished by various molecular interactions, has emerged as a critical tool in drug discovery. This review delves into the underlying mechanisms of fluorescence quenching, including static and dynamic quenching, Förster resonance energy transfer (FRET), and photoinduced electron transfer (PET). Each mechanism offers unique insights into molecular interactions, binding affinities, and conformational changes of drug candidates, enabling researchers to dissect complex biological systems with precision. The application of fluorescence quenching in high-throughput screening (HTS) is particularly emphasized, highlighting its role in identifying lead compounds and optimizing drug–target interactions. Furthermore, the review explores the integration of advanced fluorescence techniques, such as time-resolved fluorescence and single-molecule spectroscopy, in elucidating the quenching phenomena at a molecular level. These techniques provide a deeper understanding of drug–receptor interactions, allosteric modulation, and protein dynamics, which are pivotal in the drug development pipeline. The potential of fluorescence quenching in probing the pharmacokinetics and pharmacodynamics of novel therapeutics is also discussed, underscoring its versatility and effectiveness. By offering a comprehensive analysis of fluorescence quenching mechanisms and their applications, this review aims to inform future drug discovery endeavors, fostering the development of more effective and targeted therapies.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Synthesis and Applications of a Novel Naphthalimide-Based Fluorescent Probe for Relay Recognition of Cu2+ and Cysteine

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-11 DOI: 10.1002/bio.70173

Shukui Pang, Yanchao Yu, Wenju Wu, Jun You, Yifang Liang, Canyao Wu, Bolin Li

{"title":"Synthesis and Applications of a Novel Naphthalimide-Based Fluorescent Probe for Relay Recognition of Cu2+ and Cysteine","authors":"Shukui Pang, Yanchao Yu, Wenju Wu, Jun You, Yifang Liang, Canyao Wu, Bolin Li","doi":"10.1002/bio.70173","DOIUrl":"https://doi.org/10.1002/bio.70173","url":null,"abstract":"<div>\u0000 \u0000 Developing multifunctional probes capable of detecting two or more analytes under same test conditions is important for improving assay efficiency, simplifying experimental procedures, and providing more comprehensive analytical results in complex systems. This study employed 1,8-naphthalimide as a fluorescent group to design and synthesizes a naphthalimide-based Schiff base fluorescent probe, ANQ. In a CH3CN/HEPES buffer solution with a volume ratio of 3:7, ANQ enabled the continuous and rapid detection of Cu2+ and cysteine under the same detection conditions. Of these, ANQ coordinated with Cu2+ in a 1:1 ratio, allowing for specific fluorescence “on–off” detection of Cu2+, with a complexation constant of 4.41 × 104 M−1 and a detection limit of 3.6 × 10−8 mol/L. In addition, under the same conditions, complex ANQ-Cu2+ had a fluorescence turn-on response to cysteine and was unaffected by other amino acids and glutathione, with a complexation constant of 5.2 × 104 M−1 and a limit of detection as low as 4.2 × 10−8 mol/L. Moreover, ANQ could be prepared as a test strip to detect copper ions, and ANQ-Cu2+ complex could be used to detect cysteine in milk, demonstrating excellent potential for practical applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Photoluminescence and Thermoluminescence Studies of Beta-Irradiated Ba3CdSi2O8:Tb3+ Phosphor for LED and Dosimetry Applications

IF 3.2 4区化学

Luminescence Pub Date : 2025-04-10 DOI: 10.1002/bio.70171

Büşra Yazıcı Başaran, Vural Emir Kafadar, Fatih Mehmet Emen, Esra Öztürk, Ali İhsan Karaçolak

{"title":"Photoluminescence and Thermoluminescence Studies of Beta-Irradiated Ba3CdSi2O8:Tb3+ Phosphor for LED and Dosimetry Applications","authors":"Büşra Yazıcı Başaran, Vural Emir Kafadar, Fatih Mehmet Emen, Esra Öztürk, Ali İhsan Karaçolak","doi":"10.1002/bio.70171","DOIUrl":"https://doi.org/10.1002/bio.70171","url":null,"abstract":"<div>\u0000 \u0000 The present work reports the preparation, characterization, and photoluminescence (PL) and thermoluminescence (TL) responses of Tb3+-doped Ba₃CdSi₂O₈ phosphors. X-ray diffraction analysis confirmed the consistency of the Tb3+-doped Ba₃CdSi₂O₈ samples with the PDF 00-028-0128 card structure. The TL glow curve of the material was examined at different dopant concentrations after irradiation with a 90Sr/90Y beta source. Among the samples, Ba₃CdSi₂O₈: 5% Tb3+ exhibited the highest TL intensity compared with the other concentrations. The glow curve deconvolution method was used to determine the number of peaks, trap structure, and kinetic parameters within the TL glow curve, yielding a figure of merit (FOM) value of 1.11. The PL spectra show that the 2.0%, 3.0%, 4.0%, 5.0%, and 6.0% mole Tb3+-doped Ba₃Cd (SiO₄)₂ phosphors capture excitation energy through the 4f-5d transitions of Tb3+ ions and emit light at 417, 440, 492, 552, 589, and 628 nm, corresponding to the 5D₃–7F₅, 5D₃–7F₄, 5D₄–7F₆, 5D₄–7F₅, 5D₄–7F₄, and 5D₄–7F₃ transitions, respectively.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"40 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.70171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0