Optical Materials最新文献_第4页

Enhancement of up-conversion luminescence intensity of Er-doped CaMoO4 by K2CO3 addition

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-19 DOI: 10.1016/j.optmat.2025.116959

Tomoki Koikawa , Tomoyuki Yamamoto

引用次数: 0

Spectroscopic and vibrational properties of CsI single crystals doped with divalent samarium 掺杂二价钐的 CsI 单晶的光谱和振动特性

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-18 DOI: 10.1016/j.optmat.2025.116958

D.O. Sofich, A.I. Bogdanov, R.Yu Shendrik

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MnCr2O4: A suitable material with significant optical response for optoelectronic devices MnCr2O4：一种适用于光电设备且具有显著光学响应的材料

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116951

Ala Ben Abderrazak Hajji , Mouna Wali , Radhia Dhahri , Souha Kammoun , Essebti Dhahri , Jose F.M.L. Mariano , Mosbah Jemmali

{"title":"MnCr2O4: A suitable material with significant optical response for optoelectronic devices","authors":"Ala Ben Abderrazak Hajji , Mouna Wali , Radhia Dhahri , Souha Kammoun , Essebti Dhahri , Jose F.M.L. Mariano , Mosbah Jemmali","doi":"10.1016/j.optmat.2025.116951","DOIUrl":"10.1016/j.optmat.2025.116951","url":null,"abstract":"<div><div>In current high-tech electronics, a power-efficient and compact light source has an essential role to play in the development of non-destructive and non-invasive detection applications as well as for advancing of technological innovation. In this order, an innovative investigation has been taken into consideration in this paper to characterize the optoelectronic behaviour of MnCr<sub>2</sub>O<sub>4</sub> spinel chromite compound based on both experimental and theoretical approaches. The room temperature X-ray diffraction gives rise to a single-phase spinel compound which crystallises in the cubic system with the space group (Fd <span><math><mrow><mover><mrow><mn>3</mn><mspace></mspace></mrow><mo>‾</mo></mover></mrow></math></span> m). Thanks to the UV–Visible/NIR absorbance and reflectance measurement, the direct semiconducting behaviour (E<sub>dg</sub> = 2.41 eV) of chromite sample have been verified. The spectral behaviour of absorbance proves that the sample under study exhibit a broad absorption in the visible range. The high localized state density is confirmed by the significant high Urbach energy value that was observed (E<sub>u</sub> = 2.86 eV). Various optical parameter such as refractive index, extinction coefficient, dielectric real and imaginary optical permittivity have been analysed to more investigate experimentally the optoelectronic behaviour of the studied sample. Owing to the Wemple Di-Domenico model additional dispersive parameters have been identified. A comprehensive analysis of the crystal field theory based on the theoretical evaluation of the algebraic Racah tensor was taken into consideration on trivalent chromium Cr<sup>3+</sup> (3 d<sup>3</sup>) according to the O<sub>h</sub> symmetry site.The demonstrated results are undoubtedly a road to achieving high-power conversion efficiency making our material promising for multitude optoelectronic application.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116951"},"PeriodicalIF":3.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685304","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

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