Article
Chemistry, Multidisciplinary
Hongrui Cheng, Wenhao Sun, Yongfeng Lu, Haohong Li, Wenyue Su, Jing Zhang, Tailiang Guo, Fushan Li, Paul S. Francis, Yuanhui Zheng
Summary: This study presents a method to dynamically control the color of semiconductor nanoparticles with plasmonic properties by tuning the hot-electron lifetime, leading to a photochromic display. Patterns with unlimited designs and sizes can be generated through laser writing or photolithography and easily erased without obvious destruction to the device.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Biochemical Research Methods
Hassan Tajarenejad, Mohammad Ali Ansari, Soheila Akbari, Hanieh Yazdanfar, Seyedeh Mehri Hamidi
Summary: This study investigates the photothermal properties of hexagonal gold nanoparticles and their effects on axonal neural stimulation and cardiac stimulation. The results show that the heat generated by these nano-hexagons can stimulate small-diameter axons successfully and increase T wave amplitude in the heart, indicating a thermal effect on heart pacemaker cells.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Chemistry, Physical
Joshua C. Kays, Carl R. Conti, Artemis Margaronis, Jason E. Kuszynski, Geoffrey F. Strouse, Allison M. Dennis
Summary: Plasmonic semiconductor nanocrystals offer higher control of localized surface plasmon resonance than metallic materials, with earth-abundant copper iron sulfides as potential alternatives. Bornite NCs exhibit changes in absorbance spectra and metal oxidation during synthesis, indicating potential applications. Understanding the relationship between particle structure and optical properties will aid in the continued development of heavy metal-free plasmonic semiconductor nanoparticles.
CHEMISTRY OF MATERIALS
(2021)
Article
Multidisciplinary Sciences
Michele Ghini, Nicola Curreli, Matteo B. Lodi, Nicolo Petrini, Mengjiao Wang, Mirko Prato, Alessandro Fanti, Liberato Manna, Ilka Kriegel
Summary: This study demonstrates the depletion layer engineering and control in ITO/In2O3 nanocrystals through tuning the shell thickness or photodoping, enabling the design and prediction of their optoelectronic properties and enhancing charge storage capability.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Daniel Zilevu, Sidney E. Creutz
Summary: Ternary transition-metal sulfides with the general formula (AE)(MS3)-S-IV have attracted increasing attention for their optical, electronic, and thermal properties, with potential applications in photovoltaics and NIR detectors. This study successfully synthesized BaTiS3 nanomaterials using a solution-based, wet-chemical method, demonstrating control over nanoparticle size and shape and revealing strong and tunable NIR absorbance. The results provide a proof-of-principle for the synthesis of nanocrystals of this class of materials using solution routes.
CHEMISTRY OF MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Xiaodan Huang, Chao Qiu, Xiaofeng Ji, Shijun Wang, Guojian Shao
Summary: By creating an all-dielectric periodic array between Si nanopillars and SiO2 nanopillars, plasmon lattice resonances (PLR) were achieved with a line-width as small as 3.3 nm. The diameter and height of Si nanopillars, the period of the array, and the height of SiO2 nanopillars were found to have significant impacts on the formation of PLR. This work extends the application of PLR in nanophotonics.
Article
Chemistry, Multidisciplinary
Ondrej Pavelka, Sergey Dyakov, Jozef Vesely, Anna Fucikova, Hiroshi Sugimoto, Minoru Fujii, Jan Valenta
Summary: Using core-shell nanoparticles composed of gold nanorods and silicon nanocrystals, the luminescence intensity can be significantly enhanced, with an optimal separation distance of 5 nm leading to a 7.2-fold increase in luminescence intensity. The study demonstrates the great potential of hybrid nanoparticles for applications in biomedicine, such as bio-imaging and targeted cancer treatment, due to their ease of fabrication, low cost, long-term stability, and excellent emission properties.
Review
Chemistry, Physical
Aurelian Popescu, Dan Savastru, Mihai Stafe, Nicolae Puscas
Summary: This paper is a review of surface plasmon resonance (SPR) structures that use amorphous chalcogenide (ChG) films as plasmonic waveguides. The authors present the calculation method and specific characteristics of four-layer SPR structures made of amorphous As2S3 and As2Se3 films. They demonstrate that by adjusting the parameters of the SPR structure layers, such as the thickness of the ChG film and the parameters of the coupling prism, it is possible to control the resonance angle, sharpness of the SPR resonance curve, penetration depth, and sensitivity to changes in the refractive index of the analyte. The paper also discusses the realization of the coupling prism using materials with different refractive indices. Experimental results regarding the identification of alcohols, hydrocarbons, and E. coli bacteria markers are presented.
Article
Chemistry, Multidisciplinary
Lingyao Meng, Sakun Duwal, J. Matthew D. Lane, Tommy Ao, Brian Stoltzfus, Marcus Knudson, Changyong Park, Paul Chow, Yuming Xiao, Hongyou Fan, Yang Qin
Summary: The study investigated pressure-induced nanocrystal coalescence of ordered lead chalcogenide nanocrystal arrays, observing atomic crystal phase transitions and mesoscale coalescence through X-ray scattering techniques. It was found that pressure can be used to manipulate nanostructures and engineer semiconductor nanocrystal structures with specific morphologies under high-pressure conditions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Shuangshuang Wang, Huatian Hu, Xiaoze Liu, Tao Ding
Summary: Fano resonance resulting from the coupling of plasmon mode and Bragg modes is observed in Au nanoparticle on distributed Bragg reflectors (Au NPoDBRs), showing weak angular dependence. This interference involves the coupling of three modes: plasmon resonance of the nanoparticle, dispersive Bragg modes, and non-dispersive Bragg modes. It can be explained by the plasmonic coupling between dispersive Bragg modes and broad plasmon mode, as well as the strong coupling between narrowed plasmonic mode and non-dispersive Bragg mode. This Fano interference exhibits little dependence on the incidence angle but can be highly tunable with the top-layer thickness, making it suitable for novel nanophotonic devices with dispersion engineering.
Article
Chemistry, Physical
Thomas Tsangas, Charlotte Ruhmlieb, Sebastian Hentschel, Heshmat Noei, Andreas Stierle, Tobias Kipp, Alf Mews
Summary: This paper presents a novel, straightforward, and reproducible method to form tailored CuS@Au hybrid structures consisting of two-dimensional copper sulfide nanoplatelets and gold nanoparticles that are exclusively formed on the sides of the nanoplatelets. The optical properties of the hybrid structures can be influenced by adjusting the number, size, and interparticle distance of the gold nanoparticles along the sides of the copper sulfide nanoplatelets, which can be achieved by varying the amount of added gold(III) ions. By using various characterization techniques, a detailed understanding of the selective gold growth on the CuS nanoplatelets and the metal-semiconductor interface can be obtained.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Olga Caballero-Calero, Alejandra Ruiz-Clavijo, Cristina Manzano, Marisol Martin-Gonzalez, Gaspar Armelles
Summary: The fabrication of 1D nanowire arrays and 3D nanowire networks of topological insulators and metals using Bi2Te3 and Ni inside AAO templates has been achieved. Despite the different plasmon capabilities of the two materials, the optical response is determined by plasmon resonances, whose position depends on nanowire interactions and material properties. The plasmon resonances of Bi2Te3 nanowires, due to their thermoelectric properties, could be utilized to enhance thermal gradients and associated thermoelectric power.
Article
Chemistry, Multidisciplinary
Sven Riegsinger, Radian Popescu, Dagmar Gerthsen, Claus Feldmann
Summary: Aluminium nanoparticles with high crystallinity and small size (5.6 +/- 1.5 nm) were successfully synthesized via liquid-phase synthesis. These nanoparticles exhibit colloidal and chemical stability due to TMEDA functionalization, but show high reactivity after TMEDA removal.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Dmitry V. Nesterenko, Roman Pavelkin, Shinji Hayashi, Zouheir Sekkat, Victor Soifer
Summary: Efficient methods for evaluating resonance characteristics of structures were developed using Fano approximation, leading to analytical expressions for surface field enhancement, resonance width and height, and sensitivity. The approximations were compared with exact values and showed good fits, ensuring the validity of the approach. The Fano-based expressions can increase calculation speed, provide insights into resonance physics, and be used for designing efficient sensing structures and characterizing optical changes in the environment.
Article
Physics, Applied
Kengo Motokura, Minoru Fujii, Dmitry Nesterenko, Zouheir Sekkat, Shinji Hayashi
Summary: This study developed a simple technique to experimentally study the average behavior of local electric fields inside interacting planar waveguide layers. The observed changes in the local electric fields were well reproduced by simple analytical calculations, providing physical insights that cannot be obtained through electromagnetic calculations.
PHYSICAL REVIEW APPLIED
(2021)
Article
Chemistry, Multidisciplinary
Jaeyoung Heo, Ki-Hyun Cho, Prashant K. Jain
Summary: This study used in situ transmission electron microscopy to investigate antiphase boundaries in the superionic conductor copper selenide, revealing that these defects act as barriers to the propagation of the superionic phase and undergo spatial diffusion and shape changes due to thermally activated fluctuations of the neighboring ionic structure.
Article
Chemistry, Multidisciplinary
Ki-Hyun Cho, Prashant K. Jain
Summary: Nanostructuring is a powerful tool for tuning electronic properties and enhancing transport. By utilizing one-dimensional nanostructures, we have demonstrated superionic conduction with record-high ionic conductivity in solid electrolytes fabricated from nanowires of copper selenide.
Article
Chemistry, Multidisciplinary
Enrique Contreras, Rachel Nixon, Chloe Litts, Wenxin Zhang, Francis M. Alcorn, Prashant K. Jain
Summary: Ammonium synthesis from nitrate has been demonstrated using a combination of electricity and light. Gold nanoparticle electrocatalyst with dual attributes of nitrate reduction activity and visible-light-harvesting ability was used to achieve a 15x boost in activity compared to conventional electrocatalysis. Non-thermal effects induced by plasmonic excitation, such as energetic carriers and charged interfaces, were found to play a crucial role in the observed enhancement.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Jaeyoung Hong, Ki-Hyun Cho, Volker Presser, Xiao Su
Summary: Semiconductor materials with their photocatalytic properties show great potential for wastewater treatment and environmental remediation. Recent advances in functional materials have improved their efficiency and stability through doping and the formation of heterostructures. However, targeting emerging contaminants with environmental persistence remains a challenge, requiring further innovative strategies.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Rendian Wan, Shilong Liu, Yu Wang, Ye Yang, Yong Tian, Prashant K. Jain, Xiongwu Kang
Summary: By tuning the electronic structure, we designed Cu-Pt-Ni ternary alloy nanoparticles for alkaline hydrogen evolution reaction (HER), which exhibit enhanced activity under localized surface plasmon resonance (LSPR) excitation.
Letter
Nanoscience & Nanotechnology
Prashant K. K. Jain
NATURE NANOTECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Francis M. M. Alcorn, Prashant K. K. Jain, Renske M. M. van der Veen
Summary: The ability of transmission electron microscopy (TEM) to image structures ranging from millimetres to angstroms has made it an indispensable tool for modern chemists. Recent developments in TEM have allowed for real-time probing of structural evolution on the nanoscale. Time-resolved in situ TEM techniques are discussed in this review, along with their applications for studying chemical and physical processes.
NATURE REVIEWS CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Rachel Nixon, Enrique Contreras, Prashant K. Jain
Summary: Plasmon-assisted electrochemistry provides a new approach to use light energy for chemical and fuel manufacturing. Plasmonic excitation enhances and modulates electrochemical processes, and nonthermal carriers generated by plasmonic excitation promote improved reaction kinetics and new modes of electrocatalytic activity. These effects can be utilized to make electroconversions more efficient, selective, and reduce the reliance on precious metals. However, there are still fundamental and practical issues that need to be addressed.
TRENDS IN CHEMISTRY
(2023)
Editorial Material
Chemistry, Physical
Prashant K. K. Jain, Zee Hwan Kim, Wei David Wei
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Francis M. Alcorn, Maya Chattoraj, Renske M. van der Veen, Prashant K. Jain
Summary: Using a transmission electron microscope with laser excitation, we observed Ostwald ripening of Au-Cu alloy nanoparticles under plasmonic excitation. This structural transformation, distinct from electron-beam-induced coalescence, is not thermally induced but instead triggered by plasmonically excited carriers.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Francis M. Alcorn, Renske M. van der Veen, Prashant K. Jain
Summary: Researchers used a high-resolution transmission electron microscope to observe the structural evolution of Cu-based nanoparticles under electron beam irradiation and plasmonic excitation. They found that these particles undergo hollowing via the nanoscale Kirkendall effect. Hollowing is triggered by electron beam irradiation, and plasmonic excitation enhances the kinetics of the transformation, likely through the effect of photothermal heating.
Article
Chemistry, Multidisciplinary
Ki-Hyun Cho, Raylin Chen, Johannes Elbert, Xiao Su
Summary: Redox-mediated photoelectrochemical separation process utilizes solar energy as a driver for selective electrosorption, achieving efficient separation of heavy metal oxyanions.
