ACS Applied Optical Materials最新文献

{"title":"Field Enhancement Tuning through Subnanoscale Polymer Encapsulation of Gold–Silver Alloy Plasmon Nanoparticles for SERS Applications","authors":"Thirumalesh B.S,&nbsp; and ,&nbsp;Ramesh Asapu*,&nbsp;","doi":"10.1021/acsaom.5c0008710.1021/acsaom.5c00087","DOIUrl":"https://doi.org/10.1021/acsaom.5c00087https://doi.org/10.1021/acsaom.5c00087","url":null,"abstract":"<p >In this work, bimetallic Au–Ag nanoparticles are encapsulated with an ultrathin polymer shell with a high degree of control over the shell thickness up to the subnanometer level, i.e., at a rate of around 0.25 nm per layer, which provides stability without compromising the plasmonic characteristics. The effect of depositing polymer layers was observed in the red shift in the surface plasmon resonance peak wavelength of the Au–Ag alloy nanoparticles and proven numerically using a finite element method. The effect of polymer encapsulation on the field enhancement property of the Au–Ag alloy plasmon nanoparticles was investigated using surface enhanced Raman spectroscopy (SERS), and the variation in the enhancement factor is in line with the well-established distance decay of field enhancement in SERS. The near-electric field simulations also supported the distance decay of field enhancement where the localization of fields by the nanoscale polymer shell can be controlled on the order of 10–100 times in the hot spots using a dimer model. By controlling the thickness of the encapsulating polymer shell at the subnano scale, this work demonstrates that the field enhancement can be tuned using the simple wet chemical colloidal layer-by-layer encapsulation technique, which has an important scope in plasmonic sensing applications.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 5","pages":"1129–1136 1129–1136"},"PeriodicalIF":0.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Color Tunability and Optical Thermometry Study of Er3+-Codoped SrMoO4:Dy3+ Phosphor","authors":"Satyam Chaturvedi,&nbsp;Vaibhav Chauhan and Praveen C. Pandey*,&nbsp;","doi":"10.1021/acsaom.5c0007710.1021/acsaom.5c00077","DOIUrl":"https://doi.org/10.1021/acsaom.5c00077https://doi.org/10.1021/acsaom.5c00077","url":null,"abstract":"<p >Rare-earth-based luminescence thermometry and multiplying demand for adjustable color-emitting phosphors have been pushed nowadays. The objective is to develop a suitable phosphor, a highly stable contactless temperature sensor with high sensitivity, and good temperature-induced color discriminability with a cost-effective synthesis technique. In this study, SrMoO₄-based phosphors were successfully synthesized via a cost-effective and facile autocombustion approach. Structural analysis confirmed the tetragonal structure and <i>I</i>4₁/<i>a</i> space group of products validated with JCPDS card number 08-0482. Detailed spectroscopy analysis revealed enhanced photoluminescence (PL) properties for 4 at% of Dy³⁺-doped and 3 at% of Er³⁺-codoped content in a series of SrMoO₄:<i>x</i>Dy³⁺, <i>y</i>Er³⁺ (<i>x</i> = 1, 3, 4, and 5 at%; <i>y</i> = 1, 2, 3, and 4 at%) phosphors. CIE coordinates were observed at the cryostat region and room temperature. Based on temperature-dependent luminescence properties and analyzing them using the fluorescence intensity ratio technique, the relative sensitivity (<i>S</i>_R) value reached 1.42% K^–1, 1.72% K^–1, and 0.91% K^–1 at 300 K for non-thermally coupled levels. Similarly, 0.08% K^–1 and 0.77% K^–1 are due to transitions ⁴S_3/2 → ⁴I_15/2 and ⁴F_9/2 → ⁶H_11/2, respectively, at low temperature for thermally coupled levels. As defined, thermally and non-thermally coupled levels exhibit interesting results with the rise in temperature for optical thermometry application. Temperature-dependent photoluminescence (TDPL) analysis shows that different excitation wavelengths and varying temperatures result in different emission wavelengths, as in color tunability applications. The results of our study demonstrate the suitable application as a color-tunable device and a temperature sensor.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 5","pages":"1106–1118 1106–1118"},"PeriodicalIF":0.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Large Near-Infrared Refractive Index Modulation in Ion-Gel-Gated BaSnO3 for Active Metasurfaces","authors":"Rohan D. Chakraborty,&nbsp;Chris Leighton and Vivian E. Ferry*,&nbsp;","doi":"10.1021/acsaom.5c0011010.1021/acsaom.5c00110","DOIUrl":"https://doi.org/10.1021/acsaom.5c00110https://doi.org/10.1021/acsaom.5c00110","url":null,"abstract":"<p >Electrostatically gated materials can modulate the optical responses of metamaterials through large, high-speed (&gt;MHz) property changes induced in nanometer-scale charge accumulation layers. Transparent conducting oxides are popular materials for electrostatically tunable metasurfaces due to their voltage-tunable plasma frequencies along with epsilon-near-zero dispersion points that fall in the infrared. Ion-gel-gated films of the transparent conductor perovskite BaSnO₃ show large, low power changes in carrier density and electron mobility under electron accumulation. However, the corresponding optical changes in ion-gel-gated BaSnO₃ are unknown. Here, we study near-infrared refractive index modulation in ion-gel-gated La-doped BSO for active metasurfaces through optical modeling rooted in realistic material data. Near-infrared spectroscopic ellipsometry of as-grown <i>n</i>-type BaSnO₃ films establishes Drude optical parameters vs carrier density. We then ion-gel-gate BaSnO₃ into electron accumulation, where in situ Hall effect measurements and subsequent electrostatic modeling reveal a ∼4-fold carrier density enhancement near the film surface despite high initial doping of &gt;10²⁰ cm^–3. We map doping-dependent Drude parameters onto the measured carrier density modulation, enabling us to model the voltage-dependent near-infrared refractive index changes in BaSnO₃, which exceed unity at the 1550 nm telecom band. Finally, our voltage-dependent refractive index data enable simulations of plasmonic metasurfaces with BaSnO₃, which we design to achieve reconfigurable beam steering at near-telecom wavelengths. These findings frame ion-gel gated BaSnO₃ as a promising material for reconfigurable infrared metasurfaces and motivate the design of similar tunable photonic devices based on its large refractive index changes.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 5","pages":"1153–1161 1153–1161"},"PeriodicalIF":0.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sol–Gel-Derived Transparent Amino-Modified UiO-66 MOF Porous Films as Promising Photonic Platforms","authors":"Wen Ge,&nbsp;Hongxin Zheng,&nbsp;Fengxian Zhou,&nbsp;Qi Yue,&nbsp;Cheng Chen,&nbsp;Ting Chen,&nbsp;Wei Zhang,&nbsp;Ge Zhang,&nbsp;Da Shi,&nbsp;Andrew E. H. Wheatley,&nbsp;Xing Duan* and Jin He*,&nbsp;","doi":"10.1021/acsaom.5c0006210.1021/acsaom.5c00062","DOIUrl":"https://doi.org/10.1021/acsaom.5c00062https://doi.org/10.1021/acsaom.5c00062","url":null,"abstract":"<p >The sol–gel route and dip-coating technique were combined to fabricate transparent amino-modified UiO-66 metal–organic framework (MOF) films (UiO-66-NH₂), enabling efficient in situ growth of MAPbBr₃ perovskite nanocrystals (NCs, MA = methylammonium) by strong chemical interactions between amine groups and Pb²⁺ ions. We optimized the synthesis parameters to modulate sol properties and thereby achieved a high-quality MOF film with a smooth surface (<i>R</i>_ms ∼ 24 nm) and exceptional transparency exceeding 90% within the visible range. By repeating dip-coating, the desired thickness of large-area MOF films (2.5 × 2.5 cm²) can be tuned within the wide range of 38 nm to 2.2 μm. Finally, we achieved confined growth of MAPbBr₃ NCs within the UiO-66-NH₂ films and investigated the growth mechanism, demonstrating the potential of UiO-66-NH₂ for functional applications. These findings suggest that the resulting UiO-66-NH₂ films hold great promise for applications in photonic devices such as light-emitting diodes, lasers, and optical sensors.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 5","pages":"1088–1096 1088–1096"},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the Solid-State Emission of Carbonyl-Containing Compounds by Means of Introducing a Bifuran Core.","authors":"Hadar R Yakir, Benny Bogoslavsky, Ori Gidron","doi":"10.1021/acsaom.5c00106","DOIUrl":"10.1021/acsaom.5c00106","url":null,"abstract":"<p><p>Aromatic aldehydes and ketones are attractive as luminescent materials because they exhibit room temperature phosphorescence. However, an absence of significant luminescence in the solid state limits their practical application. This study investigates a series of bifuran dialdehydes and diketones (F1-F3) and their bithiophene analogues (T1-T3) and compares their photophysical properties in solution and the solid state. The incorporation of carbonyl groups into bifuran cores significantly enhances their solid-state fluorescence, with solid-state quantum yields reaching up to 35%, in contrast to low fluorescence for the thiophene-based analogues. Structural analysis via X-ray crystallography reveals that bifuran derivatives exhibit tighter packing and more rigid molecular backbones, which contributes to the observed aggregation-induced emission. The carbonyl group also stabilizes the furan core compared with unmodified bifurans.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 5","pages":"1044-1049"},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12105016/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144162406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the Solid-State Emission of Carbonyl-Containing Compounds by Means of Introducing a Bifuran Core","authors":"Hadar R. Yakir,&nbsp;Benny Bogoslavsky and Ori Gidron*,&nbsp;","doi":"10.1021/acsaom.5c0010610.1021/acsaom.5c00106","DOIUrl":"https://doi.org/10.1021/acsaom.5c00106https://doi.org/10.1021/acsaom.5c00106","url":null,"abstract":"<p >Aromatic aldehydes and ketones are attractive as luminescent materials because they exhibit room temperature phosphorescence. However, an absence of significant luminescence in the solid state limits their practical application. This study investigates a series of bifuran dialdehydes and diketones (F1–F3) and their bithiophene analogues (T1–T3) and compares their photophysical properties in solution and the solid state. The incorporation of carbonyl groups into bifuran cores significantly enhances their solid-state fluorescence, with solid-state quantum yields reaching up to 35%, in contrast to low fluorescence for the thiophene-based analogues. Structural analysis via X-ray crystallography reveals that bifuran derivatives exhibit tighter packing and more rigid molecular backbones, which contributes to the observed aggregation-induced emission. The carbonyl group also stabilizes the furan core compared with unmodified bifurans.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 5","pages":"1044–1049 1044–1049"},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsaom.5c00106","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supraparticles with Tailored Absorption and Their Optical Performance as Photonic Pigments in Sustainable Water-Based Paint","authors":"Tom A. J. Welling*,&nbsp;Keisuke Kurioka,&nbsp;Gantulga Tuguldur,&nbsp;Natsuho Tsunetomi,&nbsp;Hikaru Namigata,&nbsp;Keishi Suga,&nbsp;Kanako Watanabe and Daisuke Nagao,&nbsp;","doi":"10.1021/acsaom.5c0008010.1021/acsaom.5c00080","DOIUrl":"https://doi.org/10.1021/acsaom.5c00080https://doi.org/10.1021/acsaom.5c00080","url":null,"abstract":"<p >Many traditional pigments and dyes are toxic or have low photostability, causing environmental concerns. On the other hand, structural color photonic pigments, which derive their color from reflectance of light rather than absorption, can be made from sustainable, inexpensive materials and are nonfading. Supraparticles, which are spherical assemblies of colloidal particles, reflect light of a certain wavelength, depending on the particle size of the building blocks. In this work, we synthesized building blocks with an optimized scattering-to-absorption ratio by employing a polydopamine coating and created supraparticles via bulk emulsification and osmotic extraction. We evaluated the optical performance of water-based paint containing supraparticles of different sizes, polydispersities, structures, and degrees of absorption. We found that a larger size and higher polydispersity of the supraparticles led to paints with a wider reflection peak. The degree of crystallinity of the supraparticles, which decreased for polydopamine-coated compared to uncoated particles and was tuned via the osmotic pressure difference between droplets, had a comparatively smaller impact on the optical performance. Additionally, the scattering-to-absorption ratio of the building blocks allowed us to precisely tune the color in the paints. After these optimizations, the photonic supraparticle paints were used to paint several drawings to showcase their applicability, providing guidelines for high-quality photonic supraparticle pigments in water-based paints.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 4","pages":"1025–1035 1025–1035"},"PeriodicalIF":0.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsaom.5c00080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dianhydride-Modified Graphitic Carbon Nitride as a Support for Cobalt Single-Atom Photocatalysts","authors":"Allison St. John,&nbsp;Hannah Flayhart,&nbsp;Shuting Xiang,&nbsp;Qian Qian,&nbsp;N. Aaron Deskins,&nbsp;Anatoly I. Frenkel,&nbsp;Jonathan Rochford* and Gonghu Li*,&nbsp;","doi":"10.1021/acsaom.5c0001910.1021/acsaom.5c00019","DOIUrl":"https://doi.org/10.1021/acsaom.5c00019https://doi.org/10.1021/acsaom.5c00019","url":null,"abstract":"<p >Graphitic carbon nitride (C₃N₄) has been widely explored as a photoactive support for single-atom catalysts (SACs). In this study, three different π-rich aromatic dianhydrides are employed to introduce molecularly quantized trap states into the conduction band of C₃N₄ to facilitate efficient charge separation, and to promote an enhanced photocatalytic CO₂ reduction response. These modified C₃N₄ materials have been characterized structurally and spectroscopically for use as a support for Co-based SACs. In photocatalytic CO₂ reduction studies, the Co SAC on naphthalene dianhydride-doped C₃N₄ exhibited the highest activity and selectivity toward CO production among the Co SACs tested in this work. The observed improvement in photocatalytic CO₂-to-CO conversion activity correlates with trends in photoinduced charge separation, as revealed by photoluminescence spectroscopy.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 4","pages":"881–888 881–888"},"PeriodicalIF":0.0,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Better Understanding of the Composite Colored Cholesteric Liquid Crystal Polymer Network Film Prepared through Polymerization-Induced Chiral Dopant Diffusion","authors":"Tingting Wang,&nbsp;Rui Li,&nbsp;Wei Liu*,&nbsp;Yi Li and Yonggang Yang*,&nbsp;","doi":"10.1021/acsaom.5c0005310.1021/acsaom.5c00053","DOIUrl":"https://doi.org/10.1021/acsaom.5c00053https://doi.org/10.1021/acsaom.5c00053","url":null,"abstract":"<p >Cholesteric liquid crystal polymer network (CLCN) patterns featuring double helical pitches are attractive for decoration and anticounterfeiting. Herein, the polyacrylate-based CLCN films with double helical pitches were fabricated utilizing a nonreactive chiral dopant via a two-step photopolymerization approach. At the first step, a cholesteric liquid crystal (CLC) mixture was irradiated using the 365 nm LED lamp with a low light intensity. Based on oxygen inhibition, only the acrylate molecules near the substrate surface were polymerized. This polymerization caused the chiral dopant to diffuse from the bottom to the top section of the CLC mixture. Then, the structure with double helical pitches was formed. The diffusion of the chiral dopant was time-dependent. During the second step, this structure was stabilized following irradiation with a high-pressure Hg lamp (1.0 kW). When the chiral dopant was reactive, the Bragg reflection band of the CLCN film was broadened, which was proposed to be driven by the diffusion of the nematic liquid crystal. Moreover, patterns exhibiting composite structural colors were prepared, with potential applications in decoration.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 4","pages":"989–997 989–997"},"PeriodicalIF":0.0,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measuring the Efficiency of Photoinduced Electron Transfer at the Perovskite@Metal–Organic Framework Buried Interfaces","authors":"Deejan Debnath,&nbsp;Barnali Saha,&nbsp;Madhusudan Das,&nbsp;Himadri Acharya* and Sujit Kumar Ghosh*,&nbsp;","doi":"10.1021/acsaom.5c0003710.1021/acsaom.5c00037","DOIUrl":"https://doi.org/10.1021/acsaom.5c00037https://doi.org/10.1021/acsaom.5c00037","url":null,"abstract":"<p >Metal halide perovskite nanocrystals exhibit remarkable semiconductor characteristics with continuously tunable optical band gap covering almost all of the visible spectrum that imbue numerous prospective applications, including the field of photocatalysis. The ease of synthesis, significant efficiency of light absorption and emission, and remarkable charge transport characteristics offer many exciting possibilities to unravel the specific physicochemical attributes to ameliorate in a diverse range of niche applications. However, the stability of the perovskite quantum dots (PQDs) in aqueous medium is an important issue, as the naked nanostructures are highly sensitive to environmental conditions. Among the different approaches to engendering the intrinsic stability issue of perovskite nanostructures, the encapsulation of perovskites within the interpenetrating structures of metal–organic frameworks (MOFs) can be alleviated as a viable solution to this problem. We demonstrate the crystallization of CsPbBr₃ QDs within the pore metal–organic frameworks based on earth-abundant elements such as Cr, Fe, and Ti as the matrices and investigated the photocatalytic activities toward the degradation of methyl orange as the model reaction. The CsPbBr₃ QDs within the nanocavities of metal–organic frameworks have been synthesized using a ship-in-bottle strategy and characterized through a series of spectroscopic and microscopic techniques. Upon encapsulation within the pores, the photogenerated electrons of CsPbCl₃ QDs can be transferred to the metal catalytic sites of the MOF structures with a longer carrier lifetime on the nanosecond time scale. The turnover frequency has been calculated as 27, 15, and 22 mol g^–1 h^–1 in the presence of CsPbBr₃@MIL-101-Cr, CsPbBr₃@MIL-101-Fe, and CsPbBr₃@MIL-125-Ti nanohybrids, respectively. The buried heterojunctions formed at the perovskite@MOF nanohybrids decrease the trap density and, thus, increase the mobilities of the electrons and holes that enhance carrier extraction and suppress charge recombination. Therefore, the concept of utilizing the photoinduced electron transfer at the perovskite–MOF interface toward the degradation of organic pollutants could pave an avenue for plausible industrial applications.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 4","pages":"926–941 926–941"},"PeriodicalIF":0.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}