Journal of Luminescence最新文献_第5页

Water-soluble carbon dots with AIE characteristics for latent fingerprints recognition and information encryption 具有AIE特性的水溶性碳点用于潜在指纹识别和信息加密

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-06-02 DOI: 10.1016/j.jlumin.2025.121335

Yingwei Zhou, Fupeng Liu, Qiang Shi, Zhihai Sun, Bing Yang, Ling Zhao, Fengzhe Cui, Zhaogang Nie

{"title":"Water-soluble carbon dots with AIE characteristics for latent fingerprints recognition and information encryption","authors":"Yingwei Zhou, Fupeng Liu, Qiang Shi, Zhihai Sun, Bing Yang, Ling Zhao, Fengzhe Cui, Zhaogang Nie","doi":"10.1016/j.jlumin.2025.121335","DOIUrl":"10.1016/j.jlumin.2025.121335","url":null,"abstract":"<div><div>As a promising category of nanomaterials, carbon dots (CDs) have garnered extensive attention. However, reports of simple, cost-effective, and eco-friendly method for synthesizing CDs with good water solubility and aggregation-induced emission (AIE) characteristics are scarce. Herein, water-soluble AIE-active CDs are obtained from common green tea via a facile solvothermal method, which is not only facile to operate but also makes full use of the natural resources in green tea, and shows excellent environmental protection and sustainable development concepts. The presence of functional groups, including hydroxyl, carboxyl and amino, on the surface of CDs confirms their good water solubility by characterizing the CDs. The experimental findings on the effects of solvent, viscosity, and concentration validate the AIE phenomena observed in CDs. These phenomena are attributed to the restraint of surface group motions (such as carboxyl and amino groups) and the reduction of the non-radiative decay rate in their aggregated state. Ultimately, the CDs are demonstrated to possess significant potential for applications in latent fingerprints recognition and information encryption.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121335"},"PeriodicalIF":3.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205515","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

Extended dosimetric characterization and kinetic analysis of newly developed Li2B4O7:Cu,Ag thermoluminescent dosimeter 新研制的Li2B4O7:Cu，Ag热释光剂量计的扩展剂量学表征及动力学分析

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-06-01 DOI: 10.1016/j.jlumin.2025.121332

BaitUllah , Muhammad Basim Kakakhel , Shakeel Ur Rehman , Muhammad Tariq Siddique , Muhammad Masood Mahmood , Munib Ahmed Shafique , Babar Hussain , Khalil Ahmad

{"title":"Extended dosimetric characterization and kinetic analysis of newly developed Li2B4O7:Cu,Ag thermoluminescent dosimeter","authors":"BaitUllah , Muhammad Basim Kakakhel , Shakeel Ur Rehman , Muhammad Tariq Siddique , Muhammad Masood Mahmood , Munib Ahmed Shafique , Babar Hussain , Khalil Ahmad","doi":"10.1016/j.jlumin.2025.121332","DOIUrl":"10.1016/j.jlumin.2025.121332","url":null,"abstract":"<div><div>This study extended the dosimetric characterization and kinetic analysis of the previously developed Li<sub>2</sub>B<sub>4</sub>O<sub>7</sub>:Cu,Ag thermoluminescent dosimeter (LTB:Cu,Ag TLD). The current study included the dose-response study in a higher dose region, determination of Z<sub>eff</sub> (tissue equivalency), investigation of energy and dose rate dependency, reusability assessment, and kinetic parameters analysis using further experimental techniques (VHR and PS). The glow curve of LTB:Cu,Ag TLD exhibited stable characteristics for higher doses ranging from 20 to 50 Gy. The dosimeters displayed supralinear dose response above the 20 Gy threshold, with a maximum supralinearity f(D) of 1.47. The value of Z<sub>eff</sub> was 7.63 as calculated from ICP-OES data to be nearly tissue equivalent (Z<sub>eff</sub> = 7.35–7.6). The dosimeter was irradiated with photons of reference radiation qualities spanning from 33 to 1252 keV. A slight increase in TL sensitivity was observed at lower X-ray energies <100 keV. The over response was found to be maximum (34 %) at ∼ 48 keV. A negligible dose rate effect was observed (variations up to 2.52 %). Reusability was examined over 50 cycles and bench marked against the standard dosimeter (LiF:Mg,Ti) with results being the same for both the dosimeters. Kinetic parameters were investigated using complementary VHR and PS methods, yielding consistent results with the previously employed CGCD and T<sub>m</sub>-T<sub>stop</sub> techniques.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121332"},"PeriodicalIF":3.3,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195753","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

Pr3+-doped RbCaF3: a new X-ray-induced UVC persistent phosphor Pr3+掺杂RbCaF3：一种新的x射线诱导UVC持久性荧光粉

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-06-01 DOI: 10.1016/j.jlumin.2025.121333

Nadiia Rebrova , Andriy Pushak , Alexander Grippa , Vitalii Boiko , Patrycja Zdeb-Stańczykowska , Anatoliy Voloshinovskii , Przemysław J. Dereń

{"title":"Pr3+-doped RbCaF3: a new X-ray-induced UVC persistent phosphor","authors":"Nadiia Rebrova , Andriy Pushak , Alexander Grippa , Vitalii Boiko , Patrycja Zdeb-Stańczykowska , Anatoliy Voloshinovskii , Przemysław J. Dereń","doi":"10.1016/j.jlumin.2025.121333","DOIUrl":"10.1016/j.jlumin.2025.121333","url":null,"abstract":"<div><div>The development of persistent ultraviolet-emitting phosphors is advancing rapidly because of their promising applications in alternative cancer treatments. In this work, we developed a novel Pr<sup>3+</sup>-doped RbCaF<sub>3</sub> phosphor exhibiting intense long-persistent luminescence in the 220–340 nm range, sustained for more than an hour after just 15 min of X-ray irradiation. The 5d-4f luminescence of Pr<sup>3+</sup> ions is primarily excited by electron-hole pairs generated during X-ray absorption, as well as by electrons released from traps. The emission and excitation properties of RbCaF<sub>3</sub>:Pr<sup>3+</sup> crystallites were further investigated using synchrotron radiation, revealing the simultaneous occurrence of intra-configurational 4f<sup>2</sup>→4f<sup>2</sup> and inter-configurational 4f5d → 4f<sup>2</sup> radiative transitions upon 4f5d state excitation. This work highlights the potential of Pr<sup>3+</sup>-doped RbCaF<sub>3</sub> phosphor for innovative applications in ultraviolet photonics and cancer therapy.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121333"},"PeriodicalIF":3.3,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144243336","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

Theoretical analysis of non-resonant structured laser beam effects on electronic properties of semiconductor quantum dot 非共振结构激光束对半导体量子点电子特性影响的理论分析

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-05-31 DOI: 10.1016/j.jlumin.2025.121331

T.A. Sargsian , P.A. Mantashyan , D.B. Hayrapetyan

{"title":"Theoretical analysis of non-resonant structured laser beam effects on electronic properties of semiconductor quantum dot","authors":"T.A. Sargsian , P.A. Mantashyan , D.B. Hayrapetyan","doi":"10.1016/j.jlumin.2025.121331","DOIUrl":"10.1016/j.jlumin.2025.121331","url":null,"abstract":"<div><div>The theoretical study investigates and compares the impact of intense, non-diffractive, non-resonant structured laser beams with various intensity profiles on the electronic properties of cylindrical quantum dot. The comparative theoretical analysis demonstrates that the different structured beams, having unique symmetries and hence properties, have significant effects on the confinement potentials and electron probability densities of the quantum dot. The obtained results predict that the system is most sensitive to the intensity and peak position changes of the zeroth order Bessel beam. All calculations were carried out for a quantum dot composed of InAs embedded in a GaAs matrix, using material-specific parameters.</div><div>Drastic changes in the dressed confinement potentials and electron probability densities under the impact of the abovementioned beams are observed in our model, suggesting potential applications where precise manipulation of the charge carrier location is required. This study offers theoretical insight into the role of non-resonant structured laser fields in quantum dot systems, which could guide future experimental efforts in nanophotonics.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121331"},"PeriodicalIF":3.3,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205647","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

Te4+-doped Cs3In2Cl9 zero-dimensional perovskite for high-sensitivity optical thermometry 用于高灵敏度光学测温的Te4+掺杂Cs3In2Cl9零维钙钛矿

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-05-31 DOI: 10.1016/j.jlumin.2025.121330

Xiaoshuang Li , Shurong Chen , Bo Wang , Daxi Pan , Jingrui Zhang , Jiahong Li , Liangyi Gu , Youchao Kong , Wangsheng Liang

{"title":"Te4+-doped Cs3In2Cl9 zero-dimensional perovskite for high-sensitivity optical thermometry","authors":"Xiaoshuang Li , Shurong Chen , Bo Wang , Daxi Pan , Jingrui Zhang , Jiahong Li , Liangyi Gu , Youchao Kong , Wangsheng Liang","doi":"10.1016/j.jlumin.2025.121330","DOIUrl":"10.1016/j.jlumin.2025.121330","url":null,"abstract":"<div><div>Halide perovskite materials have garnered considerable interest due to their distinctive optical properties and their promise in optoelectronic applications. In this study, we reported the synthesis novel zero-dimensional halide perovskite Cs<sub>3</sub>In<sub>2</sub>Cl<sub>9</sub>:Te<sup>4+</sup> via an ultrasonic-assisted method. The structural and photoluminescent properties of the resulting polycrystalline sample were meticulously characterized using X-ray powder diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and fluorescence spectroscopy. Experimental findings reveal that upon excitation with near-ultraviolet light at 390 nm, the Cs<sub>3</sub>In<sub>2</sub>Cl<sub>9</sub>:Te<sup>4+</sup> sample exhibits a bright orange-yellow emission centered at 585 nm, primarily attributed to self-trapped exciton (STE) luminescence. Temperature-dependent emission spectra and decay curves imply that the material holds great potential for temperature sensing applications, showcasing a maximum relative sensitivity (<em>S</em><sub><em>r</em></sub>) of 6.27 % K<sup>−1</sup> at 300 K within the range of 300–350 K. Moreover, the Cs<sub>3</sub>In<sub>2</sub>Cl<sub>9</sub>:Te<sup>4+</sup> material has been found to possess outstanding thermal and color stability, maintain its integrity through multiple heating and cooling cycles as well as during extended measurement periods. This reliability is crucial for the development of fluorescence-based temperature detection technologies.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121330"},"PeriodicalIF":3.3,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205514","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

Optical properties, changes in electronic transitions in solvent media and dipole moments of nematic liquid crystals containing cyano group: Absorbance, fluorescence spectroscopy and reactivity parameters 含氰基向列液晶的光学性质、溶剂介质中电子跃迁的变化和偶极矩：吸光度、荧光光谱和反应性参数

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-05-30 DOI: 10.1016/j.jlumin.2025.121329

Gülşen Altıntaş Pi̇rbudak , Yadigar Gülseven Sıdır

{"title":"Optical properties, changes in electronic transitions in solvent media and dipole moments of nematic liquid crystals containing cyano group: Absorbance, fluorescence spectroscopy and reactivity parameters","authors":"Gülşen Altıntaş Pi̇rbudak , Yadigar Gülseven Sıdır","doi":"10.1016/j.jlumin.2025.121329","DOIUrl":"10.1016/j.jlumin.2025.121329","url":null,"abstract":"<div><div>In this study, electronic structure, solvatochromic properties, optical properties and reactivity parameters of liquid crystal compounds in solvent media with different polarities were investigated. Electronic absorbance and fluorescence spectra of 2-Cyano-4′-bromomethylbiphenyl (BROMO-OTBN) and 4-Cyano-4′-pentyloxybiphenyl (5-OCB) nematic liquid crystals (NLCs) containing cyano group were measured in many different solvent media. The electronic transitions of BROMO-OTBN and 5-OCB LCs were interpreted solvent-dependent wavelength shifts. The effects originating from changes in electronic transitions depending on the solvent media were described using linear solvation energy relationships (LSERs), too. The effect of solvent on electronic structure was investigated using polarizability, polarity and hydrogen bonding capacities. Electric dipole moments in solvent media were calculated using different quasi-quantum mechanical methods. It was found that the solvent acceptance radius of BROMO-OTBN NLC was smaller than that of 5-OCB, while the electric dipole moment of BROMO-OTBN was larger. The charge disorder in the excited state of 5-OCB is significantly larger than that in the ground state. The angle change between the ground and excited dipole moments of 5-OCB is smaller than that of BROMO-OTBN. This is due to the twisted intramolecular charge (TICT) transfer resulting from steric effects during the fluorescence electronic transition. The band gap energy and refractive index of liquid crystals have also been calculated experimentally. The forbidden band gap energy varies from 3 to 3.9 eV and the refractive indices are obtained in the range of 1.3–2.6 depending on the solvent.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"286 ","pages":"Article 121329"},"PeriodicalIF":3.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222344","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

Modulating the embedding position of nitrogen atom in [5]helicene:the design of hot-exciton materials 调节[5]螺旋烯中氮原子的嵌入位置：热激子材料的设计

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-05-29 DOI: 10.1016/j.jlumin.2025.121328

Qi Gao , Xue Bai , Yu Li , Feng-wei Gao , Zhong-min Su

{"title":"Modulating the embedding position of nitrogen atom in [5]helicene:the design of hot-exciton materials","authors":"Qi Gao , Xue Bai , Yu Li , Feng-wei Gao , Zhong-min Su","doi":"10.1016/j.jlumin.2025.121328","DOIUrl":"10.1016/j.jlumin.2025.121328","url":null,"abstract":"<div><div>The introduction of helical chirality is of great significance for improving the luminescence performance of circularly polarized thermally activated delayed fluorescence (CP-TADF) materials. The current work provides valuable design strategy to develop efficient “hot” exciton TADF molecules with CPL characteristics. A novel class of nitrogen-embedded [5]helicene compounds is designed by adjusting the positions of the nitrogen atom, named [5]H-PTZ, 1-aza[5]H-PTZ, 2-aza[5]H-PTZ, and 3-aza[5]H-PTZ. By employing density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations, we focus on investigating the profound impact of specific nitrogen atom positions within the [5]helicene framework on the electronic properties. Intriguingly, when the nitrogen atom resides near the donor position in 3-aza[5]H-PTZ, the higher-lying singlet-triplet energy gap (Δ<em>E</em><sub>ST</sub>) approaches almost 0 eV. The small Δ<em>E</em><sub>ST</sub> values (the Δ<em>E</em><sub>S1T2</sub> = 0.07 eV, Δ<em>E</em><sub>S1T3</sub> = 0.0003 eV, Δ<em>E</em><sub>S1T4</sub> = 0.03 eV, Δ<em>E</em><sub>S1T5</sub> = 0.04 eV) facilitate a heightened participation of triplet excited states in the luminescence process. Notably, 3-aza[5]H-PTZ exhibits the radiation rate (<em>k</em><sub>r</sub>) value as large as 4.79 × 10<sup>7</sup> s<sup>−1</sup>. Particularly, the luminescence asymmetry factor (<em>g</em><sub>lum</sub>) of the 3-aza[5]H-PTZ reaches 3.90 × 10<sup>−3</sup>. Therefore, the advantage of [5]helicene as a chiral molecule exhibits CPL characteristic. By precisely controlling nitrogen atom positions, this work highlights design strategies for modulating CPL and “hot” exciton TADF properties.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"285 ","pages":"Article 121328"},"PeriodicalIF":3.3,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184835","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

Efficient CsPbBr3 sky-blue perovskite light-emitting diodes with enhanced stability via dual passivation using sodium sulfamate 高效的CsPbBr3天蓝钙钛矿发光二极管，通过磺胺酸钠双钝化增强了稳定性

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-05-27 DOI: 10.1016/j.jlumin.2025.121319

Ganlu Fan, Chang Tan, Zhibo Ge, Li Song

{"title":"Efficient CsPbBr3 sky-blue perovskite light-emitting diodes with enhanced stability via dual passivation using sodium sulfamate","authors":"Ganlu Fan, Chang Tan, Zhibo Ge, Li Song","doi":"10.1016/j.jlumin.2025.121319","DOIUrl":"10.1016/j.jlumin.2025.121319","url":null,"abstract":"<div><div>Perovskite light-emitting diodes (PeLEDs) have demonstrated considerable potential for application in next-generation display technologies, owing to their exceptional light-emitting properties and cost-effectiveness. However, the performance of perovskite-based blue PeLEDs remains inferior to that of green and red light-emitting devices. A primary factor contributing to this disparity is the substantial non-radiative losses, which result in a reduced photoluminescence quantum yield (PLQY) in the films. Here, we employ an additive strategy by incorporating sodium sulfamate (SAS) into the perovskite layer to passivate film defects and enhance the performance of blue PeLEDs. The results reveal that coordination between sulfamate ions and unsaturated Pb<sup>2+</sup> ions significantly mitigates non-radiative recombination losses in the bulk-phase perovskites. Moreover, the amino group forms hydrogen bonds with adjacent halogen ions, thereby inhibiting their migration and further improving the passivation effect. Consequently, the SAS-modified blue PeLED devices achieved an external quantum efficiency of 5.47 % and an operational lifetime of 19.8 min, approximately double that of the control. Our findings provide valuable insights and effective strategies for realizing high-performance blue PeLEDs.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"285 ","pages":"Article 121319"},"PeriodicalIF":3.3,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170639","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

Evaluation of an outer-layer scintillating fiber designed for position-sensitive α-particle detectors 用于位置敏感α-粒子探测器的外层闪烁光纤的评价

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-05-26 DOI: 10.1016/j.jlumin.2025.121318

Sho Toyama , Misako Miwa , Wataru Kada , Shigeo Matsuyama

引用次数: 0

Effect of CdTe layer thickness on multimode optical thermometry for cryogenic temperatures CdTe层厚度对低温多模光学测温的影响

IF 3.3 3区物理与天体物理

Journal of Luminescence Pub Date : 2025-05-26 DOI: 10.1016/j.jlumin.2025.121317

Evgenii V. Borisov, Alexey A. Kalinichev, Ilya E. Kolesnikov

引用次数: 0