Results 41 to 50 of about 149 (148)
The electronic properties of tungsten disulfide (WS₂) films are investigated using ultraviolet photoelectron and inverse photoemission spectroscopies (UPS/IPES). Differences in electronic gaps and energy levels between mechanically transferred and MOCVD‐grown films reveal the non‐negligible influence of preparation methods on electronic properties ...
Xu He+6 more
wiley +1 more source
Zinc Chalcogenide Based Shell Layers for Colloidal Quantum Wells
A new synthetic route is developed for the synthesis of CdSe/ZnSe/ZnS multi‐shell nanoplatelets (NPLs) with emissions between 615 and 630 nm and photoluminescence quantum yields up to 90%. Control over the lateral size of the starting CdSe core enabled the narrowing of the emission linewidth to 20 nm.
Cagatay Han Aldemir+5 more
wiley +1 more source
Printed Interconnects for Heterogeneous Systems Integration on Flexible Substrates
Key components (sensors, energy devices, communication devices, computing chips, and interconnects) of flexible hybrid electronic (FHE) system connected via conductive printed metal tracks. The figure in the insets shows out‐of‐plane printed interconnects providing opportunities for lithography‐free formation of VIAs, in‐plane access of UTCs pads, and ...
Abhishek Singh Dahiya+3 more
wiley +1 more source
Graphical representation of the one‐pot hydrothermal synthesis of V2O5‐CNT hybrid composite electrode, illustrating its morphological characteristics and electrochemical performance. Abstract We demonstrate the one‐pot hydrothermal synthesis of vanadium oxide (V₂O₅)‐multi‐walled carbon nanotube (CNT) hybrid composites for advanced energy storage ...
Rahul S. Ingole+6 more
wiley +1 more source
The Importance of Metal Ion Impurity Bands in the Photoluminescence of Halide Double Perovskites
Many publications have associated emission spectral features of double perovskite halides in the region at 460–470 nm with “pristine” materials. This leads to not only false observations but also incorrect conclusions concerning the transformation of dark into bright excitons or boosting self‐trapped exciton emission.
Hei‐Yui Kai+4 more
wiley +1 more source
Suppressed Stokes Shifts and Hot Luminescence from Quantum Dots within Plasmonic Nanocavities
This study demonstrates the suppression of the Stokes shift in lead sulfide quantum dots through integration with plasmonic nanocavities. By enhancing spontaneous emission and altering exciton relaxation pathways, this approach enables direct band‐edge emission with improved radiative efficiency, highlighting the powerful role of nanophotonic ...
Junyang Huang+12 more
wiley +1 more source
The Impact of Donor‐Orientation on the Emission Properties of Chlorinated Trityl Radicals
Chlorinated trityl radicals with electron‐donating groups enable efficient red emission for optoelectronics. Donor orientation and steric constraints regulate vibronic coupling, influencing luminescence. A novel trityl derivative with restricted donor alignment minimizes non‐radiative decay, enhancing quantum yield.
Mona E. Arnold+9 more
wiley +1 more source
Curcuminoid boron difluoride dyes containing triphenylamine units are prepared and their photophysical and electrochemical properties are investigated. These new light‐emitting dyes are used in organic light‐emitting diodes (OLEDs) emitting at 800 nm with 1% external quantum efficiency, and show low threshold amplified spontaneous emission in thin ...
Anthony D'Aléo+11 more
wiley +1 more source
Thermally Activated Delayed Fluorescence and Beyond. Photophysics and Material Design Strategies.
Photophysical properties of TADF molecules are determined by characteristic parameters that are discussed in detail(. Moreover, using femtosecond time‐resolved spectroscopy, quantum mechanical considerations, and state‐of‐art calculations, deeper understanding allows us to design breakthrough Cu(I) and organic TADF‐ OLED materials. For the latter ones,
Hartmut Yersin, Uwe Monkowius
wiley +1 more source
Spatially Controlled Optical Vortex Generation Using Low‐Loss Antimony Telluride Metasurfaces
The spatially varying vortex beams with the customizable propagation trajectory and the controllable topological charge evolution are demonstrated using the Sb2Te3‐based plasmonic metasurfaces. Benefiting from the dispersion‐free property of the Pancharatnam–Berry phase and the broadband response of polarization conversion efficiency of the nanobrick ...
Chengsen Yang+11 more
wiley +1 more source