Optical Materials最新文献_第10页

Flexible In2O3 thin film with columnar structure for enhanced bending durability 具有柱状结构的柔性In2O3薄膜，可增强弯曲耐久性

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-27 DOI: 10.1016/j.optmat.2025.117449

Zhe Zhang , Lili Cao , Fei Luo , Haitao Zhou , Kexin Ma , Sujie Wang , Qingyun Tian , Jiyuan Shi , Zhensong Li , Bingwei Luo

{"title":"Flexible In2O3 thin film with columnar structure for enhanced bending durability","authors":"Zhe Zhang , Lili Cao , Fei Luo , Haitao Zhou , Kexin Ma , Sujie Wang , Qingyun Tian , Jiyuan Shi , Zhensong Li , Bingwei Luo","doi":"10.1016/j.optmat.2025.117449","DOIUrl":"10.1016/j.optmat.2025.117449","url":null,"abstract":"<div><div>Flexible electronics hold significant potential for applications in wearable devices, flexible displays, and biomedicine; however, the brittleness of traditional conductive materials limits their use in flexible devices. In this study, flexible In2O3 thin films were fabricated using magnetron sputtering, and their microstructure, electrical properties, interfacial adhesion, and dynamic bending durability were examined. The results show that the In2O3 film consists of highly aligned columns oriented along the (400) and (222) crystal planes, providing strong mechanical stability during bending tests. The resistivity decreases with repeated bending and reaches 0.525 Ω cm after 500 cycles, accompanied by a slight reduction in the Seebeck coefficient, indicating self-optimizing behavior. The excellent interfacial adhesion and bending resistance are also attributed to the strong bonding between the columnar In2O3 thin film and the flexible substrate, with an adhesion force of 1444.2 mN. This results from the synergistic effect of nanoscale mechanical interlocking from the columnar structure and chemical bonding between oxygen vacancies in the In2O3 film and substrate molecules. This study offers both theoretical and experimental support for high-performance flexible electrodes, with promising applications in wearable electronics and flexible thermoelectric conversion.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117449"},"PeriodicalIF":4.2,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907998","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

Oxygen vacancies and band gap modulation in rare earth phosphates synergistically enhance radiative heat dissipation 稀土磷酸盐中的氧空位和带隙调制协同增强辐射散热

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-27 DOI: 10.1016/j.optmat.2025.117436

Chenxi Bao , Mingrui Liu , Chuanqing Sun , Yu Liang , Yu Duan , Wenyu Zhao

{"title":"Oxygen vacancies and band gap modulation in rare earth phosphates synergistically enhance radiative heat dissipation","authors":"Chenxi Bao , Mingrui Liu , Chuanqing Sun , Yu Liang , Yu Duan , Wenyu Zhao","doi":"10.1016/j.optmat.2025.117436","DOIUrl":"10.1016/j.optmat.2025.117436","url":null,"abstract":"<div><div>Rare-earth compounds have been emerging as promising materials for infrared radiative cooling in electronic devices, owing to their exceptional thermal stability, tunable optical properties, and unique phonon-mediated thermal emission within the atmospheric transparency window. This study investigates the infrared (IR) emission behavior of various rare-earth (REPO4) phosphates, focusing on the influence of rare earth ion species, structural characteristics, and temperature effects on their spectral properties. Three distinct morphologies of REPO4 (RE = Y, Ce, Sm) nanopowders were successfully synthesized via a precipitation method using citric acid as metal ion complexing agent. It is discovered that spherical YPO4 particles enhance lateral IR scattering and promote IR absorption. Additionally, the IR emissivities of all three samples are significantly influenced by oxygen vacancies and the band gap. Oxygen vacancies increase the free carrier concentration, which enhances IR emissivity, while a reduction in the band gap lowers the energy barrier for electron transitions, facilitating IR absorption. The synergistic effects of these factors yield a remarkable broadband IR emissivity of up to 0.966 for YPO4. The composite film created by embedding REPO4 into PDMS achieved a cooling effect of up to 8.1 °C at an input power of 8 W (power density of 5000 W/m2), demonstrating its effectiveness for cooling electronic devices. These findings indicate the great potential of rare-earth phosphates in advancing sustainable radiative cooling technologies for next-generation electronics.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117436"},"PeriodicalIF":4.2,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932074","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

1-H-indol-2,3-dione-based schiff base derivatives: Synthesis, optoelectronic properties, and DFT-theoretical insights for photovoltaic applications 基于1- h -吲哚-2,3-二酮的希夫碱衍生物：合成，光电性质，以及光伏应用的dft理论见解

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-27 DOI: 10.1016/j.optmat.2025.117446

Gözde Murat Saltan , Sıla Gümüştaş , Fehmi Saltan

{"title":"1-H-indol-2,3-dione-based schiff base derivatives: Synthesis, optoelectronic properties, and DFT-theoretical insights for photovoltaic applications","authors":"Gözde Murat Saltan , Sıla Gümüştaş , Fehmi Saltan","doi":"10.1016/j.optmat.2025.117446","DOIUrl":"10.1016/j.optmat.2025.117446","url":null,"abstract":"<div><div>Two novel 1-H-indol-2,3-dione–based Schiff base derivatives, MIT and DIT, were synthesized via condensation of indolinone with selected aldehydes. UV–Vis spectra in various solvents showed two absorption bands: π→π∗ (300–320 nm) and n→π∗ (400–500 nm), with maxima at 307 nm for MIT (toluene) and 321 nm for DIT (acetonitrile). Steady-state fluorescence exhibited emission peaks at 497 nm for MIT (CHCl3) and 443 nm for DIT (MeCN). Cyclic voltammetry revealed oxidation onset potentials of 1.43 V (MIT) and 1.10 V (DIT) vs. Fc/Fc+, corresponding to HOMO energies of −6.09 eV and −5.66 eV, and electrochemical gaps of 2.31 and 2.25 eV. Ground-state geometry optimizations were performed at the B3LYP/6-31+G(d,p) level, and TD-DFT calculations employing B3LYP, CAM-B3LYP, and ωB97X-D functionals with the 6–311++G(d,p) basis set and IEFPCM solvent effects demonstrated consistency with the experimental trends. NBO and ESP analyses indicated nucleophilic carbonyl oxygens (−0.587 to −0.643) and electrophilic imine nitrogens (∼−0.47). Frontier molecular orbital analysis showed delocalized HOMO→LUMO transitions with strong π–π∗ and intramolecular charge-transfer character. Theoretical λmax values (≈290–340, 375–540 nm) matched experiments, with a bathochromic shift for DIT (∼537–539 nm). Photovoltaic parameters including light harvesting efficiency (LHE), excited-state oxidation potential (Edye∗), injection driving force (ΔGinj), regeneration energy (ΔGreg), open-circuit voltage (VOC), fill factor (FF), and power conversion efficiency (η) were calculated. DIT displayed higher LHE, while MIT exhibited slightly higher η due to its greater VOC. These results highlight the potential of indol-2,3-dione Schiff bases for optoelectronic and photovoltaic applications.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117446"},"PeriodicalIF":4.2,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913850","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

Flexible and broadband photodetector based on Mn-doped ZnSe on paper substrate 基于mn掺杂ZnSe的柔性宽带光电探测器

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-27 DOI: 10.1016/j.optmat.2025.117443

Junyu Su, Bowen Li, Lirui Chen, Huan He, Yuechun Fu

引用次数: 0

Competing effect of Cu and Ag thicknesses in monitoring optoelectronic properties of AZO/Cu/Ag/AZO transparent conducting structures deposited on glass substrate Cu和Ag厚度对AZO/Cu/Ag/AZO透明导电结构光电性能监测的竞争效应

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-26 DOI: 10.1016/j.optmat.2025.117442

Tahar Touam , Djelloul Mendil , Azeddine Chelouche , Djamel Djouadi , Fatiha Challali

{"title":"Competing effect of Cu and Ag thicknesses in monitoring optoelectronic properties of AZO/Cu/Ag/AZO transparent conducting structures deposited on glass substrate","authors":"Tahar Touam , Djelloul Mendil , Azeddine Chelouche , Djamel Djouadi , Fatiha Challali","doi":"10.1016/j.optmat.2025.117442","DOIUrl":"10.1016/j.optmat.2025.117442","url":null,"abstract":"<div><div>This study investigates the synergistic effects of Cu and Ag interlayers on the structural, optical, and electrical properties of AZO/Cu/Ag/AZO transparent conductive multilayers deposited on glass via RF sputtering. The Cu/Ag thickness ratio was varied while maintaining a total metal thickness of 10 nm. X-ray diffraction (XRD) showed that balanced or Ag-rich configurations (3/7 and 5/5 nm) enhanced AZO crystallinity, with 5/5 nm giving the largest crystallite size. Atomic force microscopy (AFM) confirmed that surface morphology and roughness were thickness-dependent. Optical analysis indicated that Ag-rich layers improved visible transmittance, while Cu-rich layers favored near-infrared transparency. Hall effect measurements revealed the lowest resistivity (1.25 × 10−3 Ω cm) for 5/5 nm, linked to improved metal continuity and crystallinity. The highest figure of merit (FOM, 7.56 × 10−5 Ω−1) occurred for 3/7 nm, demonstrating optimal optoelectronic balance and highlighting the complementary roles of Cu and Ag in tuning TCO properties.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117442"},"PeriodicalIF":4.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904090","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

Influence of LiF contents on the microstructure and optical properties of Gd2O2S:Tb scintillation ceramics LiF含量对Gd2O2S:Tb闪烁陶瓷显微结构和光学性能的影响

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-24 DOI: 10.1016/j.optmat.2025.117439

Junlin Wu , Dong Huang , Chen Hu , Tingsong Li , Wenqin Yang , Xingfen Jiang , Jianrong Zhou , Zhijia Sun , Jiang Li

{"title":"Influence of LiF contents on the microstructure and optical properties of Gd2O2S:Tb scintillation ceramics","authors":"Junlin Wu , Dong Huang , Chen Hu , Tingsong Li , Wenqin Yang , Xingfen Jiang , Jianrong Zhou , Zhijia Sun , Jiang Li","doi":"10.1016/j.optmat.2025.117439","DOIUrl":"10.1016/j.optmat.2025.117439","url":null,"abstract":"<div><div>The Gd2O2S:Tb scintillation ceramics with different LiF contents were fabricated by hot pressing and hot isostatic pressing post-treatment from the powders synthesized by the water-bath method. The influence of LiF contents on the microstructure, optical properties of Gd2O2S:Tb ceramics was systematically investigated. The liquid-phase sintering formed by the introduction of LiF promotes the expulsion of pores within the ceramic. However, the grain sizes of the Gd2O2S:Tb ceramics increase with the increase of LiF contents. The Gd2O2S:Tb ceramics (1 mm in thickness) with 0.05 wt% LiF shows the highest total optical transmittance of 18.3 % at 545 nm. When the LiF content is 0.05 wt%, the Gd2O2S:Tb ceramics has the highest XEL intensity, the shortest PL decay time of 562 μs and the lowest afterglow intensity of 0.01 %@50 ms. The combination of first principal calculations and experimental results demonstrate that the introduction of an appropriate amount of F- in Gd2O2S:Tb ceramics can effectively reduce the defect concentration.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117439"},"PeriodicalIF":4.2,"publicationDate":"2025-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904089","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

Binuclear complexes of lanthanide pivalates with triethanolamine demonstrate a step-wise ligand loss and switching of photoluminescence properties 镧系酸盐与三乙醇胺的双核配合物表现出配体的逐步损失和光致发光性质的切换

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-23 DOI: 10.1016/j.optmat.2025.117438

Irina Sabitova, Dmitry Tsymbarenko

{"title":"Binuclear complexes of lanthanide pivalates with triethanolamine demonstrate a step-wise ligand loss and switching of photoluminescence properties","authors":"Irina Sabitova, Dmitry Tsymbarenko","doi":"10.1016/j.optmat.2025.117438","DOIUrl":"10.1016/j.optmat.2025.117438","url":null,"abstract":"<div><div>New mixed-ligand binuclear complexes [Ln2(TeaH2)(TeaH3)(Piv)5]∙H2O·CH3CN (Eu∙CH3CN·H2O) and [Ln2(TeaH2)2(Piv)4] (Gd, Tb) were synthesized by direct reaction of lanthanide pivalates (Piv–, 2,2-dimethylpropanoate) with triethanolamine (TeaH3) and characterized by single crystal and powder XRD, FTIR, TGA and luminescence spectroscopy. Triethanolamine appears as chelating-bridging anionic (TeaH2–) and as chelating neutral (TeaH3) ligand. Two types of mixed-metal solid solutions [(Eu1-xTbx)2(TeaH2)(TeaH3)(Piv)5]∙H2O·CH3CN (x = 0.02) and [(Eu1-xTbx)2(TeaH2)2(Piv)4] (x = 0.19–0.95) form depending on the Eu/Tb ratio. The TGA and VT-PXRD reveal a loss of ethyl pivalate fragment upon heating at 200 °C. Transformation of binuclear [(Eu1-xTbx)2(TeaH2)2(Piv)4] into intermediate [(Eu1-xTbx)2(TeaH2)(Piv)3(TeaH2-C2H5)]n at 200 °C leads to ‘switching off’ of Tb-centered photoluminescence, sharp increase of LIR and relative temperature sensitivity Sr as high as 722 %/°C for x = 0.68.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117438"},"PeriodicalIF":4.2,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895499","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

High efficiency and high gain indium tin oxide optical transparent antenna based on Fabry–Perot cavity 基于法布里-珀罗腔的高效高增益氧化铟锡光学透明天线

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-22 DOI: 10.1016/j.optmat.2025.117395

Yu Yao , Yu Shao , Jiliang Zhang , Jie Zhang

{"title":"High efficiency and high gain indium tin oxide optical transparent antenna based on Fabry–Perot cavity","authors":"Yu Yao , Yu Shao , Jiliang Zhang , Jie Zhang","doi":"10.1016/j.optmat.2025.117395","DOIUrl":"10.1016/j.optmat.2025.117395","url":null,"abstract":"<div><div>Integrating optical transparent antenna (TA) into glass facilities can strengthen the intelligent interaction of indoor infrastructure and release spatial and aesthetic constraints. This paper proposes the first fully transparent Fabry–Perot cavity (FPC) antenna using indium tin oxide (ITO) film and glass substrates to improve the efficiency and gain. The theory for FPC with lossy transparent partially reflecting surfaces (PRSs) is proposed. The TA is composed of a high efficiency transparent monopole feeding antenna (TMFA) and two transparent PRSs. The PRSs are optimised based on the proposed theory. Additionally, the structure of the TA is optimised to get a good compromise between transparency and radiation efficiency. Multi-resonance cells on the PRSs are designed to improve the bandwidth. The proposed transparent FPC antenna obtains an overall optical transparency of 84% and a peak efficiency of 70.4%. A peak gain of 11.7 dBi is achieved with an aperture size of 2.2<math><mrow><mo>×</mo><mn>2</mn><mo>.</mo><mn>2</mn><msubsup><mrow><mi>λ</mi></mrow><mrow><mn>0</mn></mrow><mrow><mn>2</mn></mrow></msubsup></mrow></math>, and the 3 dB gain bandwidth spans from 4.9 GHz to 6.3 GHz. Furthermore, the transparent cavity structure makes the proposed antenna can be integrated with indoor double glazing seamlessly.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117395"},"PeriodicalIF":4.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895500","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

Spectroscopic characterization of UV-C and NIR emitting Tm3+/Pr3+ co-doped β-NaYF4 UV-C和NIR发射Tm3+/Pr3+共掺杂β-NaYF4的光谱表征

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-22 DOI: 10.1016/j.optmat.2025.117437

Patryk Fałat , Andries Meijerink , Dominika Wawrzyńczyk

{"title":"Spectroscopic characterization of UV-C and NIR emitting Tm3+/Pr3+ co-doped β-NaYF4","authors":"Patryk Fałat , Andries Meijerink , Dominika Wawrzyńczyk","doi":"10.1016/j.optmat.2025.117437","DOIUrl":"10.1016/j.optmat.2025.117437","url":null,"abstract":"<div><div>Lanthanide-doped materials exhibit remarkable optical properties due to their robust multi-energy level structures, enabling various photon conversion processes such as Stokes photoluminescence (PL), quantum cutting (QC), and upconversion (UC). Among these, the simultaneous co-doping of Tm3+ and Pr3+ ions into β-NaYF4 microcrystalline matrices has emerged as a promising strategy for achieving enhanced emissions in UV and NIR spectral regions. In this study, Tm3+/Pr3+ co-doped β-NaYF4 microcrystalline powders were synthesized via solid-state method to take the advantage of the low phonon energy of the host matrix and avoid UV absorption losses. Energy transfer between Tm3+ and Pr3+ ions was analyzed through emission spectra and luminescence decay studies under varying laser power densities. Upon blue 466 nm pulsed laser excitation, which aligns with optical transitions in both Tm3+ and Pr3+ ions, the co-doped powders demonstrated the concurrent UV UC emission and NIR downshifting with significantly enhanced intensity compared to singly doped counterparts.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"168 ","pages":"Article 117437"},"PeriodicalIF":4.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913914","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

Quasi-phase matching of the high-order harmonics generating in V, Bi, Mn, Yb, and Au plasmas 在V， Bi, Mn， Yb和Au等离子体中产生的高次谐波的准相位匹配

IF 4.2 3区材料科学

Optical Materials Pub Date : 2025-08-21 DOI: 10.1016/j.optmat.2025.117435

Rashid A. Ganeev

引用次数: 0