- Metamaterials and Metasurfaces Applications
- Plasmonic and Surface Plasmon Research
- Molecular Junctions and Nanostructures
- Advanced Antenna and Metasurface Technologies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Liquid Crystal Research Advancements
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Optical Coatings and Gratings
- Photonic and Optical Devices
- Gold and Silver Nanoparticles Synthesis and Applications
- Optical Polarization and Ellipsometry
- Surface Modification and Superhydrophobicity
- Electronic and Structural Properties of Oxides
- Copper-based nanomaterials and applications
- Photorefractive and Nonlinear Optics
- Agricultural Development and Policies
- Photonic Crystals and Applications
- Orbital Angular Momentum in Optics
- Semiconductor materials and devices
- Ferroelectric and Piezoelectric Materials
- 2D Materials and Applications
- Polymer Nanocomposite Synthesis and Irradiation
- Luminescence and Fluorescent Materials
University of Michigan
2024
BioSurfaces (United States)
2024
John Wiley & Sons (United States)
2019-2023
Centre National de la Recherche Scientifique
2023
Université de Strasbourg
2023
Institut Charles Sadron
2020-2023
Hudson Institute
2019-2023
Liechtenstein Institute
2023
Interface (United Kingdom)
2019
Hong Kong Polytechnic University
2002
Communication: The efficiency of electroluminescent devices is strongly affected by charge carrier mobilities, in that electrons and holes must be able to quickly transported for high quantum efficiency. Hole mobility data are reported here a new family five conjugated copolymers consisting triarylamines—which known possess time-of-flight (TOF) hole mobilities—combined with fluorenes via Suzuki coupling reaction. All display room-temperature TOF while one, “TFB“, has the highest yet...
This review presents the main techniques employed to construct chiral plasmonic materials and metasurfaces, in particular using soft-chemistry approaches, discusses some applications of these nanostructures.
Chirality is found at all length scales in nature, and chiral metasurfaces have recently attracted attention due to their exceptional optical properties potential applications. Most of these are fabricated by top-down methods or bottom-up approaches that cannot be tuned terms structure composition. By combining grazing incidence spraying plasmonic nanowires nanorods Layer-by-Layer assembly, we show nonchiral 1D nano-objects can assembled into scalable Bouligand nanostructures whose mesoscale...
The optical properties of chiral plasmonic metasurfaces depend strongly on their architecture, in particular the orientation and spacing between individual building blocks assembled into large arrays. However, methods to obtain metamaterials with fully tunable chiroptical UV, visible, near-infrared range are scarce. Here, we show that silver nanowires helical nanostructures by grazing incidence spraying Layer-by-Layer assembly can be finely tuned over a broad wavelength using simple design...
Chiral materials appear as excellent candidates to control and manipulate the polarization of light in optical devices. In nanophotonics, self-assembly colloidal plasmonic nanoparticles gives rise strong resonances visible range, when such organizations are chiral, a chiroplasmonic effect can be observed. present work, we describe properties chiral artificial nanophotonic materials, Goldhelices, which hierarchically organized by grazing incidence spraying. These Goldhelices made (gold)...
Abstract Conventional mirrors flip the handedness of circularly polarized light upon reflection. However, there is an increasing demand for design and fabrication handedness‐preserving as well chiral reflective metasurfaces with tunable spin states reflected photons that work in a broad wavelength range UV visible domain. Most fabricated up to now are prepared by top‐down techniques, such e‐beam lithography, which very costly difficult scale macroscopic devices. Here, efficient bottom‐up...
Phase is an important characteristic of electromagnetic waves. It well known that a beam with helical wave front characterized by phase <inline-formula><tex-math id="M1">\begin{document}$\exp({\rm{i}}l\theta )$\end{document}</tex-math><alternatives><graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="5-20181677_M1.jpg"/><graphic xlink:href="5-20181677_M1.png"/></alternatives></inline-formula> (which depends on azimuthal angle...
The surface of poly (9,9-dioctylfluorene) (PFO) film was modified by 1.0 keV Ar+ irradiation with a dose 6.5×1014 ions/cm2 prior to Ca deposition. Ultraviolet and x-ray photoelectron spectroscopic studies indicated that the could effectively block diffusion into PFO prevent formation doping-induced bipolaron states in former forbidden energy gap. As result, sharper metal contact on be formed, compared without irradiation. results suggest judicial modification polymer surfaces may useful for...