Optical Materials最新文献

{"title":"Digitalized light driven photo-responsive liquid crystals for high resolution and full gamut passive displaying","authors":"Zhili Zhang ,&nbsp;Fuyu Zhang ,&nbsp;Keyang Zhao ,&nbsp;Pengfei Mo ,&nbsp;Wenbin Huang ,&nbsp;Xiaohong Zhou ,&nbsp;Yanyan Huang ,&nbsp;Zhongwei Yu","doi":"10.1016/j.optmat.2025.117039","DOIUrl":"10.1016/j.optmat.2025.117039","url":null,"abstract":"<div><div>Photo-responsive cholesteric liquid crystal (CLC), as one of effective materials for rewritable paper, contributes to energy saving and sustainable development through their tunable pitch and passive display characteristics. In this study, a high-resolution passive display canvas with full-color gamut tunability was presented, which was attributed to the introduction of a binary chiral dopant system enabling the CLC's tunable spectrum to cover the entire visible range. Due to the ultrafast interaction between the photo-responsive CLC and the digitalized light field, multidimensional regulation of the photo-responsive material in any region could be achieved, resulting in excellent resolution performance. Additionally, by controlling the exposure dosage and exposure time of digitalized light, precise modulation of the spectrum was also realized. The ideal resolution achieved in our system is approximately 80 μm, supporting the repeated rewriting of intricate multicolor patterns with a color gamut spans nearly the entire visible spectrum, ranging from 420 nm to 730 nm. By harnessing the photo-responsive properties of CLCs and the precision of digitalized light fields, we not only validated the feasibility of high-resolution and full-gamut passive displaying, but also provided a platform for the study of the microscopic interaction between the light field and photosensitive liquid crystals.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"164 ","pages":"Article 117039"},"PeriodicalIF":3.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847983","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}

{"title":"Controllable random lasers from dye-doped liquid crystal with plasmonic silver nanostructures","authors":"Lihua Ye ,&nbsp;Qingfen Ma ,&nbsp;Ziang Zhang ,&nbsp;Yanqing Lu ,&nbsp;Bing Gu","doi":"10.1016/j.optmat.2025.117038","DOIUrl":"10.1016/j.optmat.2025.117038","url":null,"abstract":"<div><div>In this paper, the random lasers from Dye-Doped Nematic Liquid Crystals (DDNLC) with silver nanostructures of different shapes are investigated. The single-step polyol-solvothermal synthesis strategy is used to obtain the different silver nanostructures by controlling the reaction pressure with the help of silver amount and halide ions. These silver nanostructures are respectively named silver nanowires (Ag NWs), irregularly shaped silver nanoparticles (Ag NPs), silver nanospheres (Ag NSs) and silver nanocubes (Ag NCs). The investigations reveal that all silver nanostructures have intensive enhanced spectral effect due to localized surface plasmon resonance (LSPR), while the best random lasing properties are noticed in Ag NCs doped in DDNLC. This is because Ag NCs exhibit broad absorption spectrum that sufficiently overlaps with both absorption and emission of dye PM597. In addition, the sharp features of Ag NCs tend to increase charge separation and provide stronger local electric field. When the size increases from 36 nm to 144 nm, Ag NCs with a size of 99 nm achieve the lowest threshold (1.7 mJ/cm²) and the highest intensity of random laser emission because of a balance between enhanced local electric field and scattering. The random lasing in silver nanostructures doped in DDNLC is predicted to be applied in sensing and integrated photonic devices.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"164 ","pages":"Article 117038"},"PeriodicalIF":3.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829590","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}

{"title":"Enhanced self-powered UV photodetection performance of Zn2SnO4/polyaniline based heterojunction","authors":"Songchi Liao,&nbsp;Chengfeng Wang,&nbsp;Huan He,&nbsp;Yuechun Fu","doi":"10.1016/j.optmat.2025.117032","DOIUrl":"10.1016/j.optmat.2025.117032","url":null,"abstract":"<div><div>Inorganic/organic self-powered UV photodetectors based on Zn₂SnO₄/polyaniline (PANI) heterojunction are investigated in this study. Zn₂SnO₄ microspheres were synthesized by the hydrothermal method, and PANI was directly polymerized on Zn₂SnO₄ microspheres to form Zn₂SnO₄/PANI (ZP) compounds. The photodetectors constructed by n-Zn₂SnO₄/p-ZP heterojunction show excellent self-powered behavior with good stability and repeatability under UV light illumination. In particular, the device based on Zn₂SnO₄/ZP-30 displays the high photocurrent (10.805 μA), responsivity (251.279 mA W⁻¹) and detectivity (1.629 × 10¹² Jones) at zero bias. The favorable bandgap difference and structure are contributed to separate and transport photogenerated carriers rapidly and thus enhance its photoresponse performances.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"163 ","pages":"Article 117032"},"PeriodicalIF":3.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799351","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}

{"title":"An Impact of the Aryl Substituent in Position 4 of Dicyanopyridines on Efficiency of Thermally Activated Delayed Fluorescence and Electroluminescence","authors":"Pavel Arsenyan ,&nbsp;Brigita Vigante ,&nbsp;Ehsan Ullah Rashid ,&nbsp;Karolis Leitonas ,&nbsp;Dmytro Volyniuk ,&nbsp;Pavels Dimitrijevs ,&nbsp;Juozas Vidas Grazulevicius","doi":"10.1016/j.optmat.2025.117027","DOIUrl":"10.1016/j.optmat.2025.117027","url":null,"abstract":"<div><div>Our research is on the side modification of the compound exhibiting efficient thermally activated delayed fluorescence (TADF) by different aryl acetylene moieties. The modification results in the synthesis of unique 2,6-bis-(3,6-di-tert-butyl-carbazol-9-yl)-4-[4-(4-substituted ethynyl) phenyl]-pyridine-3,5-dicarbonitriles. Organic light-emitting diodes with these compounds exhibit a wide range of external quantum efficiencies from 9.8 to12.5 to 17.3%. This wide variation in efficiency, which even surpassed that of the device with the reference emitter, is primarily attributed to the significant influence of the aromatic acetylenes on the TADF properties of the compounds. The presence of ferrocene moiety results in completely quenched emission of the compound. The attachment of phenyl ethynyl group induces efficient TADF due to the narrowing of singlet-triplet energy gap (ΔE_ST) down to 0.07 eV. The spatial alignment of the singlet and triplet states is studied by quantum chemical computations demonstrating the effect of the modifications on the reduction of ΔE_ST values. It is shown that the different efficiency of reverse intersystem crossing is caused by the different spin-orbit coupling values between singlet and triplet states. The proposed acetylene modifications offer a chemical approach to finely tune TADF properties and control conformer formations of donor-acceptor type emitters in the solid state, providing a practical tool for the future research and applications of TADF emitters.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"163 ","pages":"Article 117027"},"PeriodicalIF":3.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808547","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}

{"title":"Crystal growth, measurement and modeling of the optical activity of α-GeO2 – Comparison with α-SiO2","authors":"Alexandra Peña,&nbsp;Corinne Félix,&nbsp;Bertrand Ménaert,&nbsp;Benoît Boulanger","doi":"10.1016/j.optmat.2025.117042","DOIUrl":"10.1016/j.optmat.2025.117042","url":null,"abstract":"<div><div>This work aimed first at growing high quality bulk α-GeO₂ crystals in their Quartz iso-structural form (α-SiO₂), using a high temperature flux method. By optimizing the flux composition and the geometry and orientation of the seeds, it has been possible to achieve growth yields up to 90 % leading for the first time to bulk single crystals up to 3.5 cm³. Thanks to the optical quality and size of the obtained crystals, the second step of this study was the measurement of the optical activity of α-GeO₂ between 0.3 and 2 μm. This gave access to the value of one of the independent components of the gyration tensor (<em>g</em>_<em>33</em>) as a function of the wavelength. An α-SiO₂ slab have been used to validate our methodology. Both crystals show a magnitude of optical activity of 3.4 × 10⁻⁵ rad/μm in the near IR range and great variations where the higher values are 3.4 × 10⁻³ rad/μm and 1.7 × 10⁻³ rad/μm at 0.3 μm for α-GeO₂ and α-SiO₂, respectively. The measurements are perfectly described by an empirical model that we propose and which relies on the macroscopic first-order electrical susceptibility and on the pitch of the structural helix compared to the wavelength of light.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"164 ","pages":"Article 117042"},"PeriodicalIF":3.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828950","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}

{"title":"Towards enhancement of energy transfer efficiency to Ce3+ in Gd3(Al,Ga,Sc)5O12:Ce crystals","authors":"F.D. Fedyunin ,&nbsp;O.A. Buzanov ,&nbsp;A.A. Mololkin ,&nbsp;N.S. Kozlova ,&nbsp;E.V. Zabelina ,&nbsp;V.M. Kasimova ,&nbsp;B.R. Senatulin ,&nbsp;V.A. Morozov ,&nbsp;A.A. Belik ,&nbsp;D.A. Spassky ,&nbsp;A.N. Vasil'ev","doi":"10.1016/j.optmat.2025.117022","DOIUrl":"10.1016/j.optmat.2025.117022","url":null,"abstract":"<div><div>Gadolinium aluminum gallium garnets doped with Ce ions are perspective scintillating materials with high light yield and radiation resistance. Modification of the atomic composition of the garnet by partial substitution of aluminum and gallium with scandium allows the formation of additional energy transfer channels to Ce³⁺ thus potentially improving the scintillation performance of the garnets. In the paper, the features of excitation energy transfer to the Ce³⁺ and Gd³⁺ emission centers in (Gd,Ce)₃Al_2.22Ga_2.78O₁₂ and (Gd,Ce)₃Sc_1.38Al_0.96Ga_2.66O₁₂ crystals were studied. Analysis of the reflection and luminescence excitation spectra demonstrated that partial substitution of aluminum and gallium with scandium results in the decrease of the bandgap. It was shown that the relative intensities of Ce³⁺ and Gd³⁺ emission depend on the excitation energy that is related to the competition between energy transfer channels of different origins. The analysis of luminescence excitation spectra demonstrated that 3d states of Sc participate in the formation of the conduction band bottom thus influencing the energy relaxation and energy transfer processes in the garnets. In particular, it allows the creation of scandium charge transfer excitons, which act as an additional energy transfer channel to Ce³⁺ ions that suppress the energy transfer to Gd³⁺ and enhance the relative intensity of the Ce³⁺ luminescence at low temperatures. It is concluded that the partial substitution of aluminum and gallium with scandium enhances the efficiency of the conversion of the primary hot charge carriers into secondary thermalized excitations and their transfer to dopant Ce³⁺ ions.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"164 ","pages":"Article 117022"},"PeriodicalIF":3.8,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828918","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}

{"title":"Study of nonlinear optical properties of Bi2Te3-Graphene longitudinal heterostructures and their application to fibre lasers","authors":"Yuebo Liu ,&nbsp;He Zhang ,&nbsp;Yingtian Xu ,&nbsp;Yunping Lan ,&nbsp;Yao Ding ,&nbsp;Hailin Pei","doi":"10.1016/j.optmat.2025.117035","DOIUrl":"10.1016/j.optmat.2025.117035","url":null,"abstract":"<div><div>Two-dimensional (2D) materials present numerous advantages as saturable absorbers in passive mode-locked lasers, including rapid response times, high saturation intensities, and excellent controllability. However, individual 2D materials often fall short of meeting the performance requirements for optical applications. To address this limitation, improved heterostructures combining different 2D materials are essential to mitigate the shortcomings of single materials and enhance overall performance. In this study, we investigated a van der Waals heterostructure saturable absorber (SA) composed of graphene (GR) and bismuth telluride (Bi₂Te₃), integrated with an organic thin film, through both simulation and experimental methods. The Bi₂Te₃-GR vertical heterostructure (BG-VHS) SA achieves fundamental mode locking (FML) with a pulse duration of 390 fs and harmonic mode locking (HML) with a repetition frequency of 1.406 GHz in an erbium-doped fibre (EDF) ring cavity. We measured the optical absorption intensity and modulation depth of the VHS SA and compared these results with those of the saturable absorbers composed solely of Bi₂Te₃ or GR. Our findings were further analyzed and interpreted through simulations focusing on carrier mobility and band gap variations. The composite structure exhibited favorable properties such as saturable absorption, indicating its strong potential for applications in saturable absorbers and mode-locked pulsed lasers.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"164 ","pages":"Article 117035"},"PeriodicalIF":3.8,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824407","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}

{"title":"High-fluoride-induced rapid synthesis and universal modulation of hexagonal phase NaYF4","authors":"Siwen Liu ,&nbsp;Yuee Chen ,&nbsp;Song Wang ,&nbsp;Zixiang Zhou ,&nbsp;Rongxin Zhang ,&nbsp;Xiaohong Cheng ,&nbsp;Guijie Liang ,&nbsp;Qingsong Hu","doi":"10.1016/j.optmat.2025.116987","DOIUrl":"10.1016/j.optmat.2025.116987","url":null,"abstract":"<div><div>Hexagonal phase NaYF₄ (β-NaYF₄) is extensively utilized in bioimaging and fluorescent labeling due to its excellent biocompatibility and optimal up-conversion luminescence in the visible light region. However, conventional hydrothermal methods for producing β-NaYF₄ typically necessitate prolonged reaction times and are prone to impure phase mixtures, thus lacking efficiency in meeting increasing demand. In our study, we have developed a rapid and straightforward hydrothermal method for synthesizing β-NaYF₄ by controlling the nucleation rate through adjusting the concentration of F⁻ in the reaction solution, effectively managing the phase transition process. The use of high fluoride concentrations allows multiple NaYF₄ molecules in the precursor to rapidly reach the critical state required for transitioning from cubic phase to hexagonal phase, resulting in swift formation of hexagonal phase crystals. Furthermore, we have successfully synthesized NaGdF₄, NaYbF₄, and NaErF₄ using this method, demonstrating its universality. Additionally, thorough investigation into the luminescence properties of Yb³⁺ and Er³⁺ co-doped β-NaYF₄ has been conducted. When encapsulated as a polymer film, variations in emitted light color with temperature indicate potential applications in temperature sensing. The rapid and efficient synthesis developed in this study effectively addresses the supply and demand contradiction for high-quality β-NaYF₄, providing significant support for subsequent research in biological and related fields.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"164 ","pages":"Article 116987"},"PeriodicalIF":3.8,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847977","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}

{"title":"Synthesis and luminescence properties of LiY(WO4)2:Bi3+ broadband yellow-emitting phosphor for high-quality NUV pumped WLEDs","authors":"Xiaoqi Liu ,&nbsp;Hongfei Li ,&nbsp;Xiyue Cao ,&nbsp;Tong Yu ,&nbsp;Mingyang Sun ,&nbsp;Minghao Liu ,&nbsp;Shihan Wang ,&nbsp;Chang Gao ,&nbsp;Langping Tu ,&nbsp;Bin Li ,&nbsp;Xi Yuan","doi":"10.1016/j.optmat.2025.117031","DOIUrl":"10.1016/j.optmat.2025.117031","url":null,"abstract":"<div><div>Bi³⁺-activated luminescent materials have drawn escalating attention due to their intense excitation within the near-ultraviolet (NUV) range rather than the visible range. This distinctive characteristic enables them to evade the reabsorption phenomenon among phosphors, leading to their increasing prevalence in research and applications. In this work, a series of novel LiY(WO₄)₂:Bi³⁺ broadband yellow-emitting phosphors are successfully synthesized via the simple solid-state reaction method in air. The optimal preparation temperature, Bi³⁺ doping concentration, crystal structure, luminescence properties and lifetime of the LiY(WO₄)₂:Bi³⁺ phosphor are systematically investigated. The LiY(WO₄)₂:Bi³⁺ phosphor exhibits strong excitation in the NUV range due to the ¹S₀→³P₁ transition of Bi³⁺ and displays a broadband emission peaking at approximately 556 nm that covers the entire visible range from 400 to 800 nm with a full width at half maximum (FWHM) of 180 nm upon 350 nm excitation. The lifetimes of LiY(WO₄)₂:x%Bi³⁺ phosphors are on the order of a few hundred nanoseconds, verifying the emission stems from the partly allowed ³P₁→¹S₀ transition of Bi³⁺ instead of the forbidden ³P₀→¹S₀ transition which lifetime is on the order of several hundred microseconds. The quenching temperature of LiY(WO₄)₂:0.5%Bi³⁺ phosphor is approximately 420 K and the calculated activation energy <span><math></math></span> is 0.381 eV. Furthermore, its relative integrated emission intensity can recover to 99.06% of its initial integrated intensity at 300 K after one heating-cooling cycle, indicating good thermal degradation resistance. To explore the application of LiY(WO₄)₂:Bi³⁺ phosphor, the pc-WLED device was fabricated by depositing a mixture of this phosphor and two commercial phosphors on a 365 nm chip. The final pc-WLED device exhibits ideal photoelectric performance, featuring a low correlated colour temperature of 4206 K and a high colour rendering index of 92.2. These results provide clear evidence that LiY(WO₄)₂:Bi³⁺ phosphor would be a novel promising candidate for WLED applications.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"163 ","pages":"Article 117031"},"PeriodicalIF":3.8,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808549","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}

{"title":"Near infrared luminescence enhancement of Fe3+-doped MgGa2O4 phosphor by Li+-Assisted oxygen vacancy repair strategy","authors":"Kewen Zhou ,&nbsp;Li Zhou ,&nbsp;Weilong Chen ,&nbsp;Xiaojun Yin ,&nbsp;Hao Lin ,&nbsp;Chunhong Gao ,&nbsp;Shusheng Pan","doi":"10.1016/j.optmat.2025.117034","DOIUrl":"10.1016/j.optmat.2025.117034","url":null,"abstract":"<div><div>Fe³⁺-doped MgGa₂O₄ (MGO: Fe³⁺) spinel-type phosphors are promising near-infrared (NIR) luminescent materials because of its non-toxic, good thermal stability and adjustable emission. Unfortunately, the existence of detrimental oxygen defects in the MgGa₂O₄ host lead to unsatisfactory luminescence efficiency. In this study, an oxygen vacancy repairing engineering has been innovatively developed via Li⁺ substitution in MGO: Fe³⁺ for significantly enhancing NIR emission of 709 nm and maintaining outstanding thermal stability. The emission intensity and internal quantum efficiency of Li-repaired MGO: Fe³⁺ are enhanced to 130 % and 156 % times compared to that of the MGO: Fe³⁺, respectively. This study demonstrates an innovative strategy to enhance the photoluminescence quantum yield of MgGa₂O₄-based infrared phosphors by reducing the oxygen vacancies through cation repair route.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"163 ","pages":"Article 117034"},"PeriodicalIF":3.8,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808543","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}