Luminescence最新文献_第9页

Temperature-Dependent Luminescence Spectroscopy in Europium Complexes Based on Phthalic Acid: The Effect of Coordinated Water 邻苯二甲酸铕配合物的温度依赖性发光光谱研究：配位水的影响。

IF 3 4区化学

Luminescence Pub Date : 2026-01-14 DOI: 10.1002/bio.70420

Raúl Erick Guzmán-Silva, Christian Javier Salas-Juárez, Karla Scanda, Alex Jesús Salazar-Medina, Yedith Soberanes, Ismael Garduño-Wilches, Juan Carlos Guzmán-Olguín, Monica Centeno, José Guzmán-Mendoza

{"title":"Temperature-Dependent Luminescence Spectroscopy in Europium Complexes Based on Phthalic Acid: The Effect of Coordinated Water","authors":"Raúl Erick Guzmán-Silva, Christian Javier Salas-Juárez, Karla Scanda, Alex Jesús Salazar-Medina, Yedith Soberanes, Ismael Garduño-Wilches, Juan Carlos Guzmán-Olguín, Monica Centeno, José Guzmán-Mendoza","doi":"10.1002/bio.70420","DOIUrl":"10.1002/bio.70420","url":null,"abstract":"<div>\u0000 \u0000 Thermal luminescence stability is a key challenge in developing luminescent materials for various applications. Photoluminescent properties of two red-emitting complexes, [Eu (PHT)3·H2O] and [Eu (PHT)3], were studied. Infrared spectroscopy demonstrated characteristic νas (COO−) and νs (COO−) bands of coordinated carboxylates. Photoluminescence confirms an effective ligand to metal energy transfer in the [Eu (PHT)3⸱H2O] and [Eu (PHT)3] complexes, resulting in the characteristic Eu3+ ion transitions corresponding to 5D0 → 7FJ (J = 0–4). Luminescence lifetime (τ), Absolute Quantum Yield (Ф), and quantum efficiency (η) revealed an increase of nonradiative deactivation channels in the [Eu (PHT)3⸱H2O] complex due to the presence of O–H oscillators when compared to the [Eu (PHT)3] complex. Photometric analysis placed both complexes in close agreement with NTSC red coordinates (x = 0.67, y = 0.33), and full color-purity values above 93%. The temperature-dependent luminescence of the [Eu (PHT)3] complex exhibited thermal stability up to 423 K, maintaining a signal of 70%. In contrast, the initial intensity of the [Eu (PHT)3·H2O] complex increases up to 50% in the 393–413 K range, causing intensity variations and reduced reproducibility suggested by the presence of the water molecule. These results indicate that the anhydrous [Eu (PHT)3] complex is an efficient red-emitting phosphor for optoelectronic devices.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145985852","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

Chromogenic ‘Naked Eye’ and ‘Turn-On’ Fluorescent Sensor for Detection of Al3+ Ion Based on Naphthalene Carbohydrazide: Mimicking Logic Gate Applications 基于萘碳酰肼的Al3+离子检测显色“肉眼”和“开启”荧光传感器：模拟逻辑门应用。

IF 3 4区化学

Luminescence Pub Date : 2026-01-12 DOI: 10.1002/bio.70400

Chandan Prakash, Dilip C. Kanjariya, Smita Jauhari, Nirma Maurya, Maneesh Kumar Gupta

{"title":"Chromogenic ‘Naked Eye’ and ‘Turn-On’ Fluorescent Sensor for Detection of Al3+ Ion Based on Naphthalene Carbohydrazide: Mimicking Logic Gate Applications","authors":"Chandan Prakash, Dilip C. Kanjariya, Smita Jauhari, Nirma Maurya, Maneesh Kumar Gupta","doi":"10.1002/bio.70400","DOIUrl":"10.1002/bio.70400","url":null,"abstract":"<div>\u0000 \u0000 The naphthalene carbohydrazide colorimetric and fluorimetric chemosensor (E)-N′-(4-(diethylamino)-2-hydroxybenzylidene)-1-naphthohydrazide (MKG-12) was designed, synthesized and evaluated for cation sensing via excited state intermolecular proton transfer (ESIPT) mechanism. The chemosensor MKG-12 shows a high sensitivity and selectivity to Al3+ ion detection in 10% aq.-DMSO solution (HEPES buffer, pH 7.4) with a 1:1 binding stoichiometry. The emission intensity of chemosensor MKG-12 was selectively enhanced by Al3+ ion, and an observable change in colour from colourless to fluorescent green was observed. Chemosensor MKG-12 shows limit of detection 8.79 × 10−8 μM and Kabs = 1.32 <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mo>×</mo>\u0000 </mrow>\u0000 <annotation>$$ times $$</annotation>\u0000 </semantics></math> 104 M−1 and Kem = 3.08 <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mo>×</mo>\u0000 </mrow>\u0000 <annotation>$$ times $$</annotation>\u0000 </semantics></math> 104 M−1 binding constant with Al3+ ion. Further, the interaction between the chemosensor MKG-12 and the Al3+ ion was supported by mass spectroscopy and DFT. Additionally, the chemosensor MKG-12 has been utilized as a small colorimetric kit for Al3+ ion on paper test strips and is also accomplished for detection of Al3+ ion in real water samples from different sources. Chemosensor MKG-12 was constructed as INHIBIT logic gate based on reversibility behaviour with EDTA.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145960583","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

Near-Infrared Emitting Nd3+:LaF3 Nano-Glass-Ceramics Produced by Sol–Gel Technology 溶胶-凝胶技术制备近红外发射Nd3+:LaF3纳米微晶玻璃

IF 3 4区化学

Luminescence Pub Date : 2026-01-12 DOI: 10.1002/bio.70418

Joanna Śmiarowska, Natalia Żak, Bartosz Handke, Maciej Sitarz, Wojciech A. Pisarski

{"title":"Near-Infrared Emitting Nd3+:LaF3 Nano-Glass-Ceramics Produced by Sol–Gel Technology","authors":"Joanna Śmiarowska, Natalia Żak, Bartosz Handke, Maciej Sitarz, Wojciech A. Pisarski","doi":"10.1002/bio.70418","DOIUrl":"10.1002/bio.70418","url":null,"abstract":"<div>\u0000 \u0000 In this work, the series of sol–gel materials doped with Nd3+ ions were synthesized and further transformed into nano-glass-ceramics containing LaF3:Nd3+ nanocrystals via controlled heat treatment, carried out at 700°C and 900°C. The structural characterization of materials obtained at different temperature conditions was performed using x-ray diffraction analysis (XRD), revealing a crystallization of the fluoride nanophase. The examination of luminescent properties included analysis of PLE and PL spectra recorded using different excitation wavelengths. The characteristic emission bands of Nd3+ ions within near-infrared (NIR) spectral scope were observed for all fabricated samples. Furthermore, the luminescence decay curves of the 4F3/2 state of Nd3+ were registered. It has been demonstrated that samples annealed at a higher temperature level (900°C) exhibited more intense NIR luminescence bands and longer lifetimes of the 4F3/2 excited state, compared with the series fabricated at 700°C. Indeed, the luminescence lifetimes noted for materials annealed at 700°C ranged from 141 to 772 μs, whereas those obtained for materials heat-treated at 900°C ranged from 213 to 862 μs. Based on the obtained results, it was concluded that the Nd3+ ions were partially incorporated into LaF3 nanocrystals, thus the fabricated sol–gel materials are promising candidates for the NIR luminescence applications.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145960626","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

Nitrogen-Doped Carbon Dots-Eu3+-Tetracycline as a Ratiometric Fluorescence Probe for Turn “Off–On” Determination of Pyrophosphate and Alkaline Phosphatase Activity 氮掺杂碳点- eu3 +-四环素作为比率荧光探针用于焦磷酸盐和碱性磷酸酶活性的“关闭”测定。

IF 3 4区化学

Luminescence Pub Date : 2026-01-08 DOI: 10.1002/bio.70417

Shengnan Yin, Changlun Tong

{"title":"Nitrogen-Doped Carbon Dots-Eu3+-Tetracycline as a Ratiometric Fluorescence Probe for Turn “Off–On” Determination of Pyrophosphate and Alkaline Phosphatase Activity","authors":"Shengnan Yin, Changlun Tong","doi":"10.1002/bio.70417","DOIUrl":"10.1002/bio.70417","url":null,"abstract":"<div>\u0000 \u0000 The monitoring of alkaline phosphatase (ALP) activity and pyrophosphate (PPi) concentration is critical for assessing phosphorus dynamics and eutrophication in aquatic ecosystems. However, on-site, rapid detection of these dual targets in complex water matrices remains a challenge. In this work, a nitrogen-doped carbon dots (N-CDs)-Eu3+-tetracycline (TC)-based ratiometric fluorescence probe was constructed for turn “off–on” determination of PPi and ALP based on the strong binding interaction between PPi and Eu3+ and PPi hydrolyzed by ALP. In the N-CDs-Eu3+-TC system, with the addition of PPi, PPi could replace the N-CDs to form the PPi-Eu3+-TC multicomplex, and N-CDs were released, resulting in the fluorescence quenching of Eu3+ and fluorescence recovery of N-CDs. ALP could hydrolyze PPi to PO43−, which could destroy the PPi-Eu3+-TC multicomplex and form the N-CDs-Eu3+-TC multicomplex again, and the fluorescence of Eu3+ at 617 nm was recovered. The N-CDs-Eu3+-TC-based ratiometric fluorescent probe possesses a quick fluorescence response, obvious fluorescence color variance, and excellent selectivity and sensitivity with LOD of 40 nM for PPi and 0.03 U/L for ALP. The proposed probe was successfully applied for the detection of PPi and ALP in the actual environmental water samples or serum samples.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145935881","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

Fluorescence Mean-Lifetimes of a Series of Small and Bright Fluorescent Dyes 一系列小而亮的荧光染料的荧光平均寿命。

IF 3 4区化学

Luminescence Pub Date : 2026-01-08 DOI: 10.1002/bio.70392

Leonardo De Boni, Klester dos Santos Souza, Melissa Machado Rodrigues, Bruna Nitzke Minuzzi, Marcelo Barbalho Pereira, Milton Katsumi Sasaki, Diogo Seibert Lüdtke, Tarso B. Ledur Kist

{"title":"Fluorescence Mean-Lifetimes of a Series of Small and Bright Fluorescent Dyes","authors":"Leonardo De Boni, Klester dos Santos Souza, Melissa Machado Rodrigues, Bruna Nitzke Minuzzi, Marcelo Barbalho Pereira, Milton Katsumi Sasaki, Diogo Seibert Lüdtke, Tarso B. Ledur Kist","doi":"10.1002/bio.70392","DOIUrl":"10.1002/bio.70392","url":null,"abstract":"Fluorescence mean-lifetime is a photophysical parameter that is used in basic research and in many fields of applications. However, the parameter is not available in the literature for some small and bright fluorescent dyes, or at least it is difficult to find. Therefore, in the present work, the fluorescence mean-lifetime of some small and bright fluorescent dyes was measured in aqueous buffered solutions. A few more dyes with an already known fluorescence mean-lifetime are also included for comparison. The total list of five classes (scaffolds) and their respective dyes analyzed are as follows: (1) four rhodamines—5(6)-carboxy-X-rhodamine (ROX), Rho 6G 3+ (N-[2-(2-aminoethylamino)ethyl]rhodime 6G-amide), Rho 6G 2+ (N-(8-amino-3,6-dioxaoctyl)rhodamine 6G-amide), and TAMRA-SE-Gly (a carboxytetramethylrhodamine); (2) four fluoresceins—5-aminofluorescein, 5(6)-carboxyfluorescein (FAM), 6-TET-SE-Gly (a tetrachlorocarboxyfluorescein), and 6-HEX-SE-Gly (a hexachlorocarboxyfluorescein); (3) three pyrenes—8-aminopyrene-1,3,6-trisulfonic acid, 8-hydroxypyrene-1,3,6-trisulfonic acid, and pyrene-1,3,6,8-tetrasulfonic acid; (4) one borondipyrromethene—BODIPY FL (4,4-Difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene-3-propanoic acid); and (5) one acridine—3,6-dimethylaminoacridine (acridine orange). Fluorescence mean-lifetimes were measured in one or more of the following mediums: 100 mM acetic acid/sodium acetate pH 4, water pH ~ 7, and 20 mM potassium tetraborate pH 10.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12783449/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145935902","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

O-Phthaldehyde Analogs as Isoindole Forming Probes: A Versatile Fluorimetric Approach for Biomedical and Pharmaceutical Analysis—A Critical Review 邻苯二醛类似物作为异吲哚形成探针：一种用于生物医学和药物分析的多功能荧光方法-关键评论。

IF 3 4区化学

Luminescence Pub Date : 2026-01-08 DOI: 10.1002/bio.70419

Sayed M. Derayea

{"title":"O-Phthaldehyde Analogs as Isoindole Forming Probes: A Versatile Fluorimetric Approach for Biomedical and Pharmaceutical Analysis—A Critical Review","authors":"Sayed M. Derayea","doi":"10.1002/bio.70419","DOIUrl":"10.1002/bio.70419","url":null,"abstract":"<div>\u0000 \u0000 This review focuses on the application of o-phthaldehyde analogs as isoindole-forming probes for the sensitive fluorescence determination of biomedical and pharmaceutical compounds. Isoindole formation has been used effectively for the fluorescence detection of a wide range of analytes, including aliphatic and aromatic primary amines, amino acids, some proteins, thiols, cyanides, and others. Such derivatization is flexible and can be tailored for the analysis of different classes of compounds using techniques such as direct spectrofluorimetry, HPLC, and capillary electrophoresis. Most of the isoindole formation reactions proceeded rapidly at room temperature and yielded highly fluorescent products without the generation of interfering by-products. Several alternative reagents for the formation of isoindoles have also emerged; however, o-phthaldehyde is still the most commonly used reagent. The advantages and potential applications of these alternatives were discussed. Overall, this review will enlighten researchers on the development and applicability of o-phthaldehyde analogs based on isoindole formation in quantitative analysis and detection of biomolecular targets.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145935908","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

Simple and Novel Fluorimetric Protocol for Sitagliptin Estimation Through Sensitivity Enhancement Using Acetic Acid: Application to Pharmaceutical Dosage Form With Green Assessment 醋酸增强西格列汀测定灵敏度的简易荧光法新方案：绿色评价药物剂型的应用

IF 3 4区化学

Luminescence Pub Date : 2026-01-04 DOI: 10.1002/bio.70404

Tamer Z. Attia, Reem Y. Shahin, Hager M. Taha, Deena A. M. Noureldeen

{"title":"Simple and Novel Fluorimetric Protocol for Sitagliptin Estimation Through Sensitivity Enhancement Using Acetic Acid: Application to Pharmaceutical Dosage Form With Green Assessment","authors":"Tamer Z. Attia, Reem Y. Shahin, Hager M. Taha, Deena A. M. Noureldeen","doi":"10.1002/bio.70404","DOIUrl":"10.1002/bio.70404","url":null,"abstract":"<div>\u0000 \u0000 A simple, cost-effective, reproducible, highly sensitive, and green spectrofluorimetric technique for sitagliptin phosphate estimation has been established in its pure form and commercial formulation. The native fluorescence of sitagliptin was enhanced by inhibiting photoinduced electron transfer through optimization of medium pH. The highest fluorescence intensity of sitagliptin was observed at 296 and 583 nm after excitation at 265 nm, using 0.50-M acetic acid. The method exhibited a wide linearity range (0.30–4.00 μg/mL) with high correlation coefficient values of 0.9998 at both 296 and 583 nm, limits of detection of 0.09 and 0.10 μg/mL, and the limits of quantitation of 0.27 and 0.29 μg/mL, respectively. The guidelines of ICH have been applied for validation of the proposed method. The obtained results have been compared with the previous reported methods. The developed fluorimetric protocol demonstrated high accuracy and excellent precision for estimation of sitagliptin in commercial tablets. Furthermore, the method was confirmed to be environmentally friendly using AGREE, GAPI, Analytical Eco-Scale, MA, and AGSA tools. As a conclusion, the proposed fluorimetric protocol is highly suitable for the quality control of sitagliptin phosphate.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145901420","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

S,N-Codoped Carbon Dots Derived From Acetone and Thiourea via Solvothermal Method: A Fluorescent Probe for Ag+ Ion Detection 丙酮和硫脲溶剂热法制备S， n共掺杂碳点：一种检测Ag+离子的荧光探针。

IF 3 4区化学

Luminescence Pub Date : 2026-01-02 DOI: 10.1002/bio.70401

Yunping Lai, Shanshan Liu, Hong Yu, Tianyao Song, Jia Guo, Yisen Liu, Tao Zhang

引用次数: 0

An Efficient D-π-A-π-D-Type Fluorescent Probe for Selective and Sensitive Detection of Cu2+ and CN− Ions Through Fluorescence On–Off Responses 一种高效的D-π- a -π-D型荧光探针，通过荧光开关响应选择性灵敏地检测Cu2+和CN-离子。

IF 3 4区化学

Luminescence Pub Date : 2025-12-31 DOI: 10.1002/bio.70402

Mohammed Kaleem, Rimpi Bhandari, Ravisen Rai, Arvind Misra

{"title":"An Efficient D-π-A-π-D-Type Fluorescent Probe for Selective and Sensitive Detection of Cu2+ and CN− Ions Through Fluorescence On–Off Responses","authors":"Mohammed Kaleem, Rimpi Bhandari, Ravisen Rai, Arvind Misra","doi":"10.1002/bio.70402","DOIUrl":"10.1002/bio.70402","url":null,"abstract":"<div>\u0000 \u0000 A D-A-D-type fluorescent molecular probe 4 has been designed and synthesized. The solvatochromic and photophysical properties of probe 4 were studied in different solvent systems. Probe 4, upon interaction with different classes of ions in a partial aqueous medium, showed sensitivity for Cu2+ and CN− ions in which the intensity of the probe due to the intramolecular charge transfer (ICT) process diminished upon formation of a stable complex, 4.Cu2+ and deprotonation of –OH functions, respectively. Job's plot analysis revealed a 1:1 (Cu2+) and 1:2 (CN−) stoichiometry. Probe 4 displayed a naked eye–sensitive fluorescence response to detect both ions in solution with different rates of reaction and a limit of detection in the nanomolar range. The electrodynamic properties of the probe displayed redox behavior upon interaction with both ions. The variation in the ICT process was further assessed by the density functional theory (DFT) method. The probe has been utilized to detect the ions on test paper strips and in real water samples with a good recovery percentage. Also, probe 4 was successfully applied to estimate the Cu2+ ion concentration in natural grass extract solution. The molecular probe showed good applicability in on-site detection of both ions using a smartphone-based RGB analysis technique.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145866331","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

Structural, Spectroscopic, and Luminescent Properties of Dy3+-Doped Multicomponent-Based Borosilicate Glasses for White-Light Emission Applications 白光发射应用中Dy3+掺杂多组分硼硅酸盐玻璃的结构、光谱和发光特性。

IF 3 4区化学

Luminescence Pub Date : 2025-12-29 DOI: 10.1002/bio.70399

P. Pavithra, Thummala Chengaiah, P. Reddi Babu, G. Moulika, P. Sai Dinesh, O. Ravi, Ramakrishna Pagoti, Deva Prasad Raju Borelli

{"title":"Structural, Spectroscopic, and Luminescent Properties of Dy3+-Doped Multicomponent-Based Borosilicate Glasses for White-Light Emission Applications","authors":"P. Pavithra, Thummala Chengaiah, P. Reddi Babu, G. Moulika, P. Sai Dinesh, O. Ravi, Ramakrishna Pagoti, Deva Prasad Raju Borelli","doi":"10.1002/bio.70399","DOIUrl":"10.1002/bio.70399","url":null,"abstract":"<div>\u0000 \u0000 A new series of Dy3+-doped borosilicate–magnesium–cesium–carbonate–lead chloride–sodium chloride (BSMCPNDy) glasses was synthesized using the conventional melt-quenching technique to investigate their structural and optical properties. The incorporation of Dy3+ ions into the host matrix was confirmed through FTIR spectra, which revealed the formation of BO₃/BO₄ structural units and modifications in the silicate network. Optical absorption and photoluminescence (PL) measurements were performed to explore the electronic transitions and luminescence behavior of Dy3+ ions. The Judd–Ofelt intensity parameters followed the trend Ω₂ > Ω₄ > Ω₆, suggesting an asymmetric and covalent environment around Dy3+ ions in the glass network. Under 349-nm excitation, the emission spectra exhibited prominent bands at 482 nm (4F₉/₂ → 6H₁₅/₂), 575 nm (4F₉/₂ → 6H₁₃/₂), and 663 nm (4F₉/₂ → 6H₁₁/₂), corresponding to blue, yellow, and red emissions. The 0.5 mol% Dy3+-doped sample displayed the highest emission intensity, whereas concentration quenching at higher dopant levels resulted from energy transfer and cross-relaxation processes. The evaluated branching ratio, stimulated emission cross-section, fluorescence lifetime behavior, and color coordinates suggest that the optimized BSMCPNDy composition is a promising candidate for white-light–emitting diodes, solid-state laser media, and photonic devices.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"41 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145851474","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