Optical Materials最新文献_第5页

Exploring linear and nonlinear optical properties in Yb3+ and Tm3+ doped PbO–GeO2–SiO2 glasses

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116921

I. Fuks-Janczarek , R. Miedzinski , Luciana R.P. Kassab

引用次数: 0

High performance self-powered and broadband photodetector based on 1T/2H MoS2 Schottky homojunction

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116955

Daxiu Tang , Xinru Zheng , Yongwei Lu , Xiaoning Guan , Ying Xie , Guoxiang Wang , Chenjie Gu , Pengfei Lu , Xiang Shen

{"title":"High performance self-powered and broadband photodetector based on 1T/2H MoS2 Schottky homojunction","authors":"Daxiu Tang , Xinru Zheng , Yongwei Lu , Xiaoning Guan , Ying Xie , Guoxiang Wang , Chenjie Gu , Pengfei Lu , Xiang Shen","doi":"10.1016/j.optmat.2025.116955","DOIUrl":"10.1016/j.optmat.2025.116955","url":null,"abstract":"<div><div>All-2D van der Waals (vdW) Schottky heterojunctions provide a new platform for constructing the self-powered photo detector. However, the sophisticated process flow and unintentional introduction of structural defects can severely degrade the device's performance. In this work, a novel Schottky homojunction based on self-assembled 1T/2H MoS<sub>2</sub> was reported. Experimental results evidenced that the photo detector exhibited self-powered characteristics. The photovoltaic effects could be observed across a broad spectrum ranging from 380 to 900 nm. Moreover, responsivities (R) of 24.5 mA/W, 29.5 mA/W, and 89 mA/W, and detectivities (D∗) of 1.37 × 10<sup>11</sup> Jones, 1.65 × 10<sup>11</sup> Jones, and 4.98 × 10<sup>11</sup> Jones, under UV (380 nm), visible light (550 nm), and near-infrared (900 nm) light, could be achieved, respectively. And excellent switching response times of 6.2 m s (raise time) and 5 m s (fall time) were also recorded. These results evidence that the Schottky homojunction can be an attractive approach for developing high performance optoelectronic detectors.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"163 ","pages":"Article 116955"},"PeriodicalIF":3.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ray scattering in fiber-reinforced transparent wood composites – wood microstructural effects and virtual camera simulation

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116953

Bin Chen , Sergei Popov , Lars A. Berglund

引用次数: 0

Encapsulation of molecular chromophores in phosphate glass towards improved stability against photodegradation

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116952

Emmanouil Nikoloudakis , Ioannis Konidakis , Harris Goniotakis , Eleni Agapaki , Klytaimnistra Katsara , George Kenanakis , Athanassios G. Coutsolelos , Emmanuel Stratakis

引用次数: 0

Nonlinear optical properties and stability of Ag/Pt bimetallic nanoparticles in α−Al2O3

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116920

Oswaldo Sánchez-Dena , Juan-Pablo Cordero-Santiago , Jorge Alejandro Reyes-Esqueda , Alejandro Crespo-Sosa

{"title":"Nonlinear optical properties and stability of Ag/Pt bimetallic nanoparticles in α−Al2O3","authors":"Oswaldo Sánchez-Dena , Juan-Pablo Cordero-Santiago , Jorge Alejandro Reyes-Esqueda , Alejandro Crespo-Sosa","doi":"10.1016/j.optmat.2025.116920","DOIUrl":"10.1016/j.optmat.2025.116920","url":null,"abstract":"<div><div>Metallic nanoparticles are well known to have interesting optical properties. However, a good understanding of those properties still needs to be added in order to be able to control them entirely for future optoelectronic applications. Metallic nanoparticles are still more promising but must be understood because further parameters play essential roles in their formation and transformations. In this paper, we present the results of measurements of the nonlinear optical absorption and refractive index of an oversaturated solid solution of Ag and Pt in <span><math><mrow><mi>α</mi><mo>−</mo><mi>A</mi><msub><mrow><mi>l</mi></mrow><mrow><mn>2</mn></mrow></msub><msub><mrow><mi>O</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></math></span>, as well as of <span><math><mrow><mi>A</mi><msub><mrow><mi>g</mi></mrow><mrow><mn>15</mn></mrow></msub><mi>P</mi><msub><mrow><mi>t</mi></mrow><mrow><mn>17</mn></mrow></msub></mrow></math></span> alloyed nanoparticles and <span><math><mrow><mi>P</mi><mi>t</mi><mo>−</mo><mi>A</mi><mi>g</mi></mrow></math></span> core–shell nanoparticles. Our results indicate that at high irradiance levels, the two former configurations transform into the latter one during the measurements.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116920"},"PeriodicalIF":3.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the quenching mechanism of metal ions using solvent-driven N, S-doped carbon quantum dots

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-15 DOI: 10.1016/j.optmat.2025.116948

Jingyan Yu, Rajendran Kalimuthu, Xingchen Liu, Wengao Zhang, Yonggen Tan, Kun Yan, Shenglin Ye, Jun Feng

{"title":"Unveiling the quenching mechanism of metal ions using solvent-driven N, S-doped carbon quantum dots","authors":"Jingyan Yu, Rajendran Kalimuthu, Xingchen Liu, Wengao Zhang, Yonggen Tan, Kun Yan, Shenglin Ye, Jun Feng","doi":"10.1016/j.optmat.2025.116948","DOIUrl":"10.1016/j.optmat.2025.116948","url":null,"abstract":"<div><div>Carbon quantum dots (CQDs) hold great potential as fluorescence probes due to their tunable optical properties, but remain challenges in tailoring surface functionalization for selective metal ion detection, which is essential for environmental monitoring and water quality analysis. This work, synthesized nitrogen and sulfur co-doped carbon quantum dots (N, S-CQDs) were via a one-pot solvothermal method with two different solvents, N, N-dimethylformamide (DMF) and acetone. The influences of solvent selectivity on the surface functionality of CQDs and their fluorescence quenching mechanisms were evaluated in both experimental and computational methods. To represent CQDs surfaces, density functional theory (DFT) calculations of the total density of states (TDOS) and partial density of states (PDOS) were conducted. Our findings revealed that synthesized CQDs in DMF and acetone exhibited fluorescence quenching as static and dynamic. We have achieved the highest quantum yields of 37.85 % and 28.59 %. This shows excellent sensitivities of Fe<sup>3+</sup> at 0.82 μM and 1.19 μM for Co<sup>2+</sup>. Furthermore, the study extended to validated in real water sample analysis. This approach enabled the development of a novel strategy for the selective and sensitive detection of Fe<sup>3+</sup> and Co<sup>2+</sup> ions.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116948"},"PeriodicalIF":3.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

(Het)aryl-substituted monoazatriphenylenes as luminescent “turn-off” chemosensors for nitroaromatic compounds with internal filter effect correction (Het)芳基取代单氮杂三苯烯作为硝基芳香族化合物的发光 "熄灭 "化学传感器，具有内部滤波效应校正功能

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-15 DOI: 10.1016/j.optmat.2025.116949

L.K. Sadieva , A.F. Khasanov , T.I. Shendrikova , I.L. Nikonov , D.S. Kopchuk , O.S. Taniya , G.A. Kim , A.S. Novikov , O.V. Shabunina , G.V. Zyryanov , V.N. Charushin

{"title":"(Het)aryl-substituted monoazatriphenylenes as luminescent “turn-off” chemosensors for nitroaromatic compounds with internal filter effect correction","authors":"L.K. Sadieva , A.F. Khasanov , T.I. Shendrikova , I.L. Nikonov , D.S. Kopchuk , O.S. Taniya , G.A. Kim , A.S. Novikov , O.V. Shabunina , G.V. Zyryanov , V.N. Charushin","doi":"10.1016/j.optmat.2025.116949","DOIUrl":"10.1016/j.optmat.2025.116949","url":null,"abstract":"<div><div>(Het)aryl-substituted monoazatriphenylenes with an extended conjugated system were synthesized from 1,2,4-triazines <em>via</em> Boger reaction, and their photophysical properties were studied, including aggregation induced emission (AIE), as well as fluorescence “<em>turn-off</em>” response to nitroexplosives. Although obtained compounds showed fluorescence “<em>turn-off</em>” sensory response to the presence of all common nitroaromatic explosives, such as 2,4-dinitrotoluene (2,4-DNT), 2,4,6-trinitrotoluene (TNT) and 2,4,6-trinitrophenol (picric acid, PA), a well pronounced selectivity to PA was observed, and the fluorescence quenching efficiency was not based on inner filter effect (IFE). For the most representative chemosensor, the highest Stern-Volmer fluorescence quenching constant of 5.93 × 10<sup>6</sup> M<sup>−1</sup> with quenching efficiency of 99.68 % was observed in the presence of PA with a limit of detection as low as 33.4 ppm.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116949"},"PeriodicalIF":3.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Color centers in doped and undoped LiF irradiated with 18 MeV electrons 用 18 MeV 电子辐照掺杂和未掺杂 LiF 中的色心

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-14 DOI: 10.1016/j.optmat.2025.116942

O.M. Pop, I.G. Megela, V.T. Maslyuk, J.J. Hainish, M.P. Vizenko, I. Yu Roman, V.I. Roman

引用次数: 0

Determination of the optical band gap and electronic transition type of powdered Ca2Fe2O5 brownmillerite

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-14 DOI: 10.1016/j.optmat.2025.116947

S. F. Armendáriz, P. Amézaga-Madrid, S. F. Olive-Méndez, F. Espinosa-Magaña, D. Lardizábal-Gutiérrez

{"title":"Determination of the optical band gap and electronic transition type of powdered Ca2Fe2O5 brownmillerite","authors":"S. F. Armendáriz, P. Amézaga-Madrid, S. F. Olive-Méndez, F. Espinosa-Magaña, D. Lardizábal-Gutiérrez","doi":"10.1016/j.optmat.2025.116947","DOIUrl":"10.1016/j.optmat.2025.116947","url":null,"abstract":"<div><div>In this study, powdered Ca<sub>2</sub>Fe<sub>2</sub>O<sub>5</sub> was synthesized via a sol-gel method and characterized using scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), and ultraviolet–visible–near infrared diffuse reflectance spectroscopy (UV–Vis–NIR DRS). The morphology of the particles was analyzed with SEM, the elemental composition was studied with EDX and XRD; the latter, along with ATR-FTIR, confirmed both the crystal phase and sample purity. The novelty of this study lies in the application of two recently developed methods for analyzing UV–Vis/NIR data, which allow the determination of the Tauc exponent when calculating the optical band gap from Tauc plots. Both methods indicated an indirect electronic transition in Ca<sub>2</sub>Fe<sub>2</sub>O<sub>5</sub>, with the resulting optical band gap value being 1.62 eV. This indirect transition aligns with the results from theoretical works on the electronic band structure of the material. However, the obtained band gap is substantially lower than those reported in previous theoretical and experimental reports.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116947"},"PeriodicalIF":3.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generation and manipulation of focused high-order Poincaré sphere beams via optical metasurfaces

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-14 DOI: 10.1016/j.optmat.2025.116945

Yuqin Zhang , Xuehui Zhang , Haoran Zhou , Jianshan An , Zhanliang Mu , Weiye Yuan , Yutian Guo , Changwei He , Chuanfu Cheng , Hongsheng Song

{"title":"Generation and manipulation of focused high-order Poincaré sphere beams via optical metasurfaces","authors":"Yuqin Zhang , Xuehui Zhang , Haoran Zhou , Jianshan An , Zhanliang Mu , Weiye Yuan , Yutian Guo , Changwei He , Chuanfu Cheng , Hongsheng Song","doi":"10.1016/j.optmat.2025.116945","DOIUrl":"10.1016/j.optmat.2025.116945","url":null,"abstract":"<div><div>This paper investigates the generation and manipulation of focused high-order Poincaré sphere vector beams with constant annular intensity profiles and arbitrary phase and polarization distributions using an optical metasurface. The proposed design employs a nanoslit pair unit, consisting of orthogonal rectangular nanoslits arranged according to Fresnel zone plate formula. This configuration enables flexible control of phase and amplitude of wavefield by leveraging geometric and propagation phases under circularly polarized vortex beam illumination. By varying the topological charge <em>l</em> of incidence, the optical path difference <em>d</em>, the rotate order <em>q</em>, and the initial orientation angle <em>α</em><sub>0</sub> of the nanoslit pairs, this method facilitates the creation of diverse high-order Poincaré sphere vector beams. Both simulations and experiments validate the approach, demonstrating its efficacy and potential applications in polarization optics and light-matter interactions.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116945"},"PeriodicalIF":3.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0