Results 61 to 70 of about 1,513,497 (299)

Investigation of the Impact of Point Defects in InGaN/GaN Quantum Wells with High Dislocation Densities

Nanomaterials, 2023
In this work, we report on the efficiency of single InGaN/GaN quantum wells (QWs) grown on thin (
Pierre Lottigier, Davide Maria Di Paola, Duncan T. L. Alexander, Thomas F. K. Weatherley, Pablo Sáenz de Santa María Modroño, Danxuan Chen, Gwénolé Jacopin, Jean-François Carlin, Raphaël Butté, Nicolas Grandjean   +9 more
doaj   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Increase in Modulation Speed of Silicon Photonics Modulator with Quantum-Well Slab Wings: New Insights from a Numerical Study

Photonics
A Silicon Photonics modulator is a high-speed photonic integrated circuit for optical data transmission in high-capacity optical networks. Silicon Photonics modulators in the configuration of a Mach–Zehnder interferometer, in which a PN-junction rib ...
Kensuke Ogawa
doaj   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

The Effect of The Geometry of Side Quantum Wells on The Optical Properties of Triple Quantum Wells Under The Electric Field Influence

Cumhuriyet Science Journal
The electronic and optical properties of the symmetrical 〖Al〗_x 〖Ga〗_(1-x) As/GaAs multiple quantum wells were investigated. The system consists of three triangular-shaped quantum wells in which the potentials of left- and right-hand side wells were ...
Bahadır Bekar
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Modeling Temperature Dependence of The Combined Density of States in Heterostructures with Quantum Wells Under the Influence of a Quantizing Magnetic Field

East European Journal of Physics
In this work, the dependence of the oscillation of the combined density of states on a strong magnetic field in heterostructures based on a rectangular quantum well is studied.
Ulugbek I. Erkaboev, Sherzodjon A. Ruzaliev, Rustamjon G. Rakhimov, Nozimjon A. Sayidov   +3 more
doaj   +1 more source

Near-field resonant photon sorting applied: dual-band metasurface quantum well infrared photodetectors for gas sensing

Nanophotonics, 2020
Two photodetectors for measuring transmission and two bulky, separated narrowband filters for picking a target gas absorption line and a non-absorbing reference from broadband emission are typically required for dual-band non-dispersive infrared (NDIR ...
Hainey Mel F., Mano Takaaki, Kasaya Takeshi, Ochiai Tetsuyuki, Osato Hirotaka, Watanabe Kazuhiro, Sugimoto Yoshimasa, Kawazu Takuya, Arai Yukinaga, Shigetou Akitsu, Miyazaki Hideki T.   +10 more
doaj   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Modeling the Temperature Dependence of Shubnikov-De Haas Oscillations in Light-Induced Nanostructured Semiconductors

East European Journal of Physics
In this work, the influence of light on the temperature dependence of transverse magnetoresistance oscillations is studied. A generalized mathematical expression that calculates the temperature and light dependence of the quasi-Fermi levels of small ...
Ulugbek I. Erkaboev, Rustamjon G. Rakhimov, Jasurbek I. Mirzaev, Nozimjon A. Sayidov, Ulugbek M. Negmatov   +4 more
doaj   +1 more source