Article
Chemistry, Multidisciplinary
Aaron Bayles, Shu Tian, Jingyi Zhou, Lin Yuan, Yigao Yuan, Christian R. Jacobson, Corbin Farr, Ming Zhang, Dayne F. Swearer, David Solti, Minghe Lou, Henry O. Everitt, Peter Nordlander, Naomi J. Halas
Summary: This study introduces Al@TiO2 core-shell nanoparticles as active photocatalysts for hot electron-mediated H-2 dissociation reaction and hot hole-mediated methanol dehydration. The research indicates that the photocatalytic mechanism involves plasmonic hot carrier generation and subsequent transfer into the TiO2 layer. The Al@TiO2 antenna-reactor offers an earth-abundant solution for the future design of visible-light-driven plasmonic photocatalysts.
Article
Chemistry, Physical
Astrini Pradyasti, Dae Seok Kim, Mun Ho Kim
Summary: This study successfully synthesized Au@AgAuS core-shell hybrid nanorods using a water-based synthesis strategy, and investigated their morphological evolution and compositional conversion. The unique composition and plasmonic characteristics of the Au@AgAuS hybrid nanorods contribute to their excellent photocatalytic activity under sunlight irradiation.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Xiaodong Wan, Jia Liu, Jiatao Zhang
Summary: Plasmonic metal@semiconductor core-shell nanostructures have attracted great interest in recent years due to their ability to enhance the photocatalytic efficiency of surrounding semiconductors. This article outlines the recent progress in the wet chemical preparation of these nanostructures, with a focus on the synthetic approaches and their correlation with the physical properties of the resulting materials. The potential of cation exchange-facilitated (CEf) nonepitaxial growth in reducing interfacial defects and promoting extraction of plasmonic hot carriers is discussed in detail. Understanding these mechanisms is important for designing efficient plasmonic metal@semiconductor core-shell nanostructures for photocatalytic solar-to-fuel conversion.
Article
Chemistry, Multidisciplinary
Jianli Wang, Yifan Mao, Runze Zhang, Yanli Zeng, Changsheng Li, Bingjie Zhang, Jianhui Zhu, Jiawen Ji, Desheng Liu, Rumin Gao, Yongqiang Ma
Summary: This study presents a universal scheme for synthesizing core-shell hybrids (MOF@HOF) by using stable HOFs and surface-functionalized MOFs. The newly synthesized NH2-UiO-66@DAT-HOF core-shell nanostructure exhibits excellent stability and superb photocatalytic performance, with an apparent reaction rate constant up to 60.7 and 7.6 times higher than its parent materials NH2-UiO-66 and DAT-HOF for tetracycline degradation. This enhancement is attributed to the broader visible-light utilization range and efficient charge carrier separation supported by the S-scheme heterojunction. Furthermore, the photocatalytic efficiency of the core-shell nanostructure remains high after several-cycle applications.
Article
Chemistry, Physical
A. Dutta, B. Pihuleac, Y. Chen, C. Zong, L. Dal Negro, C. Yang
Summary: The use of CSS plasmonic nanoparticles has shown significant enhancement in the photocatalytic performance of PEC photoanodes using hematite as a testing system. The optimized CSS NPs have demonstrated double resonance peaks and spatially uniform electric field distributions, resulting in improved photocurrent density and potential for increasing carrier generation in hematite photoelectrocatalytic systems.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Physical
Bing Luo, Jinghua Li, Wei Wang, Chaoqian Ai, Haihan Zhang, Yuxin Zhao, Dengwei Jing
Summary: Designing high efficacy photocatalysts is a promising approach to enhance solar fuel production efficiency. In this study, a core/shell composite of loose ZnCr layered double hydroxide nanosheets modified CdS nanorods was prepared for efficient visible light driven photocatalytic hydrogen production. With synergistic actions and a Z-scheme energy band configuration, the highest hydrogen production rate achieved was 22.4 times higher than that of Pt-modified CdS, demonstrating the potential of this composite for solar H-2 production.
Article
Engineering, Chemical
Xiaojing Zhao, Wentao Xu, Yuanpeng Dong, Yanghang Su, Yubin Liu, Wen-Jie Chen, Miaoqiong Xu, Rong Li, Yun Gao, Xuxing Chen, Xiaoyang Pan
Summary: A ternary core-shell structure composed of Sn1.1Nb2O5.5F0.9 (SNOF), Pd nanoparticles, and SnO2 was fabricated using a simple one-step process at room temperature. The resulting nanocomposites showed efficient photoactivities for C2H4 oxidation under simulated sunlight irradiation, attributed to the core-shell structure and embedded Pd nanoparticles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Chemistry, Inorganic & Nuclear
Meijie Liu, Zipeng Xing, Zhenzi Li, Wei Zhou
Summary: The core-shell metal organic frameworks (MOFs) have shown significant advantages in photocatalytic applications, such as large specific surface areas and low photogenerated electron-hole recombination, which can enhance the photocatalytic efficiency. Common synthesis strategies for core-shell MOF-based materials include one-pot synthesis, in-situ synthesis, self-template method, and layer-by-layer assembly method.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Environmental Sciences
Xiangyu Wang, Min Jiang, Iseult Lynch, Zhiling Guo, Peng Zhang, Lisi Wu, Jun Ma
Summary: In this study, a highly efficient composite Fe/Fe2O3@UiO-66 material was constructed by employing an urchin-like core-shell structure of Fe/Fe2O3 onto UiO-66 through a facile ion exchange precipitation method. The urchin-like core-shell configuration extended the life span of Fe0 and produced more active sites, while the addition of Fe2O3 broadened the absorption spectrum and achieved high-efficiency separation of photogenerated electron-hole pairs with the load of Fe/Fe2O3. The findings of this research provide a promising method for promoting the catalytic properties of MOF-based materials and Fe/Fe2O3.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Shihong Wang, Yan Zhang, Yiyi Zheng, Yanbo Xu, Guodong Yang, Shuxian Zhong, Yuling Zhao, Song Bai
Summary: A smart design of semiconductor/metal/semiconductor stacked core-shell structure is demonstrated in this research, which significantly enhances the photocatalytic activity of CO2 reduction by adjusting the electron and hole transfer between the metal and semiconductor.
Article
Chemistry, Multidisciplinary
Ehsan Vahidzadeh, Karthik Shankar
Summary: This study demonstrates that artificial neural networks can rapidly predict the optical response of core-shell plasmonic metastructures, with speeds 100-1000 times faster than traditional FDTD simulations. Furthermore, neural networks address issues related to convergence speed dependent on structure size in FDTD simulations. Additionally, in the field of photonics, neural networks can establish connections between far-field optical responses and design parameters.
Article
Nanoscience & Nanotechnology
Yuchen Yao, Sen Chen, Jiao Ye, Yuntao Cui, Zhongshan Deng
Summary: Liquid metal (LM) droplets covered with functional materials, especially metallic, can often improve performance and functionality. In this study, copper films were synthesized on the surface of LM using self-assembly, resulting in the creation of EGaIn@Cu. The stiffness coefficient of the LM droplet was increased by 56.9% with the support of the copper film, and it also has the potential to be a phase change capsule.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Mariachiara Manoccio, Marco Esposito, Elisabetta Primiceri, Angelo Leo, Vittorianna Tasco, Massimo Cuscuna, Dmitry Zuev, Yali Sun, Giuseppe Maruccio, Alessandro Romano, Angelo Quattrini, Giuseppe Gigli, Adriana Passaseo
Summary: This study demonstrates the sensing capabilities of a chip-based metamaterial, combining 3D chiral geometry with a functional core-shell nanoarchitecture. The modified optical response of the chiral metamaterial allows for analysis in complex environments and efficient interaction with biomolecules, leading to high sensitivity detection of biomarkers. Measurements in spiked solution and human serum show the potential for early diagnostics and diseases progression monitoring in a range not accessible with common immunological assays, opening new perspectives for next-generation biomedical systems.
Article
Chemistry, Applied
Di Wang, Shanshan Qiao, Jia Guo, Yuan Guo, Qian Xu, Naeem Akram, Jide Wang
Summary: This study prepared four different metallic Co microparticles using different reduction methods, and then obtained Co@Co3O4 core-shell microparticles by oxidizing these metallic Co microparticles in air or in the reacting solution in situ. The microparticles showed excellent catalytic activities and stabilities in the [Ru(bpy)(3)](2+)/S2O82-/light system, functioning as catalysts for photocatalytic water oxidation.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Hang Su, Yufeng Gong, Hongming Lou, Yuxia Pang, Dongjie Yang, Dawei Gao, Xueqing Qiu
Summary: ZnIn2S4 hemisphere-wrapped TiO2 nanoparticles with an open shell-core structure were prepared through a solvothermal process. The shell-core structure increases the specific surface area, shortens the migration distance of electron and hole pairs, and promotes light absorption. The built-in electric field changes and accelerates the transfer process of photogenerated carriers, enhancing the photocatalytic reaction. The Ti-ZIS shell-core heterojunction exhibits excellent performance in photocatalytic hydrogen evolution and lignin degradation.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Multidisciplinary
Yael Gutierrez, Maria Losurdo, Iris Prinz, Adrian Prinz, Georg Bauer, Maria Bauer, Martina M. Schmidt, Thorsten Schaller
Summary: This paper demonstrates the design and industrial manufacturing process of reliable and cost-effective disposable SERS microfluidic chips using high throughput technologies. These chips exhibit high SERS enhancement and stability, making them suitable for customizable and cost-effective disposable point-of-care diagnostic applications.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Optics
Javier Gonzalez-Colsa, Guillermo Serrera, Jose Maria Saiz, Dolores Ortiz, Francisco Gonzalez, Fernando Bresme, Fernando Moreno, Pablo Albella
Summary: This study compares the thermoplasmonic response of different nanoparticle geometries and finds that doughnut-shaped nanoparticles have a superior tunable photothermal response under practical illumination conditions. The heating of nanoparticles in fluidic environments strongly depends on the particle orientation with respect to the illumination source. It is concluded that nanodoughnuts are the best nanoheaters with weak dependence on orientation, making them ideal for photothermal therapy applications.
Article
Materials Science, Multidisciplinary
Yael Gutierrez, Andrea Fernandez-Perez, Saul A. Rosales, Cornel Cobianu, Marin Gheorghe, Mircea Modreanu, Jose M. Saiz, Fernando Moreno, Maria Losurdo
Summary: In this study, imaging polarimetry and spectroscopic ellipsometry were used to reveal and directly measure the optical properties of Sb(2)S(3) in crystalline and amorphous states. The results show that Sb(2)S(3) crystallites exhibit strong anisotropy and low losses, while the amorphous films are optically isotropic.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Chemistry, Multidisciplinary
Stefano Dicorato, Yael Gutierrez, Maria M. Giangregorio, Fabio Palumbo, Giuseppe Bianco, Maria Losurdo
Summary: In this study, GaS samples of various thicknesses were obtained and the interplay between structural, morphological, optical, and photoresponsivity properties as a function of thickness was investigated. The results showed that the photoresponsivity of GaS increases with thickness and remains stable over multiple on/off cycles.
Article
Multidisciplinary Sciences
Yael Gutierrez, Anna P. Ovvyan, Gonzalo Santos, Dilson Juan, Saul A. Rosales, Javier Junquera, Pablo Garcia-Fernandez, Stefano Dicorato, Maria M. Giangregorio, Elena Dilonardo, Fabio Palumbo, Mircea Modreanu, Josef Resl, Olga Ishchenko, Guy Garry, Tigers Jonuzi, Marin Georghe, Cornel Cobianu, Kurt Hingerl, Christoph Cobet, Fernando Moreno, Wolfram H. P. Pernice, Maria Losurdo
Summary: In this study, we investigated the structural change and optical contrast during the amorphous-to-crystalline transformation of antimony sulfide. We identified two crystallization regimes and proposed applications based on our findings.
Article
Optics
Yael Gutierrez, Dilson Juan, Stefano Dicorato, Gonzalo Santos, Matthias Duwe, Peter H. Thiesen, Maria M. Giangregorio, Fabio Palumbo, Kurt Hingerl, Christoph Cobet, Pablo Garcia-Fernandez, Javier Junquera, Fernando Moreno, Maria Losurdo
Summary: In this study, the dielectric function of crystalline 2H-GaS from monolayer to bulk was investigated through a combined theoretical and experimental approach. Spectroscopic imaging ellipsometry with micron resolution measurements and first principle calculations were used to determine the dielectric function. The applicability of the established dielectric function was further demonstrated through the analysis of the optical response of GaS layers grown by chemical vapor deposition. These findings provide guidance for the design of optoelectronic and photonic devices based on low-dimensional GaS.
Article
Optics
Gonzalo Santos, Marin Georghe, Cornel Cobianu, Mircea Modreanu, Maria Losurdo, Yael Gutierrez, Fernando Moreno
Summary: This paper presents a reconfigurable photodetector based on a metal-semiconductor configuration, utilizing hot-carrier and surface plasmons (SPs) hot-electron injection into semiconductors for narrowband photoresponse and sub-bandgap energy photodetection. By numerically studying the parameters of the dual-comb Au electrodes and the SP order, the absorption of the device is optimized, enabling tunable narrowband photodetection from the O telecom band to the C telecom band.
Article
Chemistry, Analytical
Maria Carcelen, Veronica Vidal, Alfredo Franco, Marcos Gomez, Fernando Moreno, Jose L. Fernandez-Luna
Summary: This article introduces a simple, fast and label-free method based on a gold nanohole array biosensor to detect the spectral response and changes in cell-matrix adhesion of cancer cells. The experimental results show that this biosensor can effectively distinguish different cell populations in the cell cycle and detect changes in cell-matrix interaction in real time.
Article
Materials Science, Multidisciplinary
Yael Gutierrez, Shirly Espinoza, Martin Zahradnik, Krishna Khakurel, Josef Resl, Christoph Cobet, Kurt Hingerl, Matthias Duwe, Peter Thiesen, Maria Losurdo
Summary: This paper discusses the importance and applications of polarized light reflection techniques in the characterization of phase-change materials, which can provide information about the extinction coefficient of PCMs and mapping anisotropies.
Article
Chemistry, Multidisciplinary
Gonzalo Santos, Maria Losurdo, Fernando Moreno, Yael Gutierrez
Summary: All-dielectric metasurfaces are nanopatterned structures that have various applications and their optical behavior is determined by composition, dimensions, and environment. However, their functionality is fixed during fabrication, limiting their potential as reconfigurable devices. A reconfigurable all-dielectric metasurface based on high refractive index materials is proposed, which can control scattered light through phase-change chalcogenide antimony triselenide. The device consists of a 2D array of sandwich disks embedded in a SiO2 matrix.
Article
Chemistry, Analytical
Victor Garcia-Milan, Alfredo Franco, Margarita Estreya Zvezdanova, Sara Marcos, Ruben Martin-Laez, Fernando Moreno, Carlos Velasquez, Jose L. Fernandez-Luna
Summary: A nanostructured gold biosensor was used to distinguish between tumor tissue and peritumoral tissue in GBM patients based on differences in their optical properties. The biosensor showed a high sensitivity and specificity in discriminating between the two tissues, making it a potential tool for real-time intraoperative discrimination.
Article
Materials Science, Multidisciplinary
Yael Gutierrez, Gonzalo Santos, Fabio Palumbo, Mircea Modreanu, Fernando Moreno, Maria Losurdo
Summary: In this study, the reversible non-volatile transition of molybdenum oxides was experimentally demonstrated, and its optical properties were investigated. The research results highlight the potential applicability of molybdenum oxides in metal-insulator transitions.
OPTICAL MATERIALS EXPRESS
(2022)
