Results 141 to 150 of about 2,794,441 (253)

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

Advanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri, Andrea Smeriglio, Svetlana Siprova, Olga Favale, Francesca Leone, Roberto Termine, Debora Policastro, Alessandra Crispini, Attilio Golemme, Nicolas Godbert, Iolinda Aiello, Antonio De Luca   +11 more
wiley   +1 more source

Photonic band structures of 2d photonic crystals with half-elliptical holes

Moldavian Journal of the Physical Sciences, 2012
In recent years, periodic photonic crystal structures have attracted much attention due to potential application in controlling electromagnetic wave propagation [1].
Marin, Adriana, Preda, L., Ciobanu, M., Savastru, Dan, Carstea, E., Ghervase, L., Dontu, S.   +6 more
doaj  

Multi-resonant photonic band-gap/saddle coil DNP probehead for static solid state NMR of microliter volume samples. [PDF]

J Magn Reson, 2018
Nevzorov AA, Milikisiyants S, Marek AN, Smirnov AI.   +3 more
europepmc   +1 more source

Laser‐Induced Local De‐Doping in Organic Semiconductors

Advanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer, Aleksandr Perevedentsev, Daniel Ryklin, Rasmus R. Schröder, Gerardo Hernandez‐Sosa, Uli Lemmer   +5 more
wiley   +1 more source

Photonic Band Gap Engineering by Varying the Inverse Opal Wall Thickness. [PDF]

Int J Mol Sci
Karajz DA, Halápi L, Stefaniuk T, Parditka B, Erdélyi Z, Hernádi K, Cserháti C, Szilágyi IM.   +7 more
europepmc   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Stealthy and hyperuniform isotropic photonic band gap structure in 3D. [PDF]

PNAS Nexus
Siedentop L, Lui G, Maret G, Chaikin PM, Steinhardt PJ, Torquato S, Keim P, Florescu M.   +7 more
europepmc   +1 more source

Wafer‐Scale Top‐Down Patterning of Metal Halide Perovskites

Advanced Materials Technologies, EarlyView.
Wafer‐scale patterning of metal halide perovskite films is demonstrated on 150 mm substrates using a chemically amplified resist, polymethyl methacrylate (CAR‐PMMA) and a single reactive ion etching step. The streamlined process preserves film luminescence while defining submicrometer features across the full wafer, enabling dense, scalable integration
Federico Fabrizi, Ardeshir Esteki, Holger Lerch, Saeed Goudarzi, Liudmila Starodubtceva, Gerhard Müller‐Newen, Maryam Mohammadi, Max C. Lemme   +7 more
wiley   +1 more source

Encapsulated tri-band terahertz (THz) swiveled dielectric resonator antenna (DRA) with substrate integrated waveguide (SIW) and photonic band gap (PBG) crystal for gain enhancement. [PDF]

Sci Rep
Divya G, Babu K, Balakrishna I, Addepalli T, Mohammed DZ, Zakaria Z, Al-Gburi AJA.   +6 more
europepmc   +1 more source

Recent Advances in Light‐Addressable Electrochemistry for Spatially Resolved Applications

Advanced Materials Technologies, EarlyView.
This comprehensive review highlights light‐addressable electrochemistry as a powerful tool that uses light to control localized chemical reactions on unstructured semiconductor surfaces. The work evaluates advanced strategies to optimize electrode materials for enhanced spatial resolution and stability. Furthermore, it showcases diverse applications in
Nhi Trang Vo, Sina Jamali, Nam‐Trung Nguyen   +2 more
wiley   +1 more source