Results 141 to 150 of about 73,026 (352)

Bragg diffraction of higher orders on oblique helicoidal liquid crystal structures [PDF]

arXiv
For the oblique helicoidal structure of the chiral twist-bend nematic-forming mixture of CB7CB/CB6OCB/5CB doped by light-sensitive chiral compound based on azo-fragment, two consequent states of Bragg reflection of the light in the visible spectral range from 400 to 750 nm were experimentally observed in the course of decreasing the applied electric ...
arxiv  

XVII.—Researches on the constitution of azo- and diazo-derivatives. V. Compounds of the naphthalene β-series—continued [PDF]

, 1889
Raphael Meldola, Gilbert T. Morgan
openalex   +1 more source

A Review of Ga₂O₃ Heterojunctions for Deep‐UV Photodetection: Current Progress, Methodologies, and Challenges

Advanced Electronic Materials, EarlyView.
This paper provides a comprehensive review of the existing literature related to the fundamentals of gallium oxide (Ga2O3), growth methods, substrates, and particularly a focused examination of Ga2O3‐based heterojunctions. Particular attention has also been given to the state‐of‐the‐art Ga2O3‐based heterojunctions for photodetectors. The key challenges
Alfred Moore, Saqib Rafique, Ciaran Llewelyn, Dan Lamb, Lijie Li   +4 more
wiley   +1 more source

Light tuning of selective Bragg diffraction of the oblique helicoidal cholesteric [PDF]

arXiv
It is known that the oblique helicoidal cholesteric structure (Ch$_{OH}$), which is formed in alternating electrical field applied to the chiral nematic phase (N*) at temperatures above the chiral twist-bend nematic phase (N*$_{tb}$), can show selective Bragg reflection in the visible range of spectrum. In this work, we study the effects of AC electric
arxiv  

Unveiling the Impact of C60–O2 Interaction on the Performance and Characterization of Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Air exposure of the C60 electron‐transport layer (ETL) in p‐i‐n perovskite solar cells causes rapid O2 intercalation, forming deep trap states and altering charge carrier balance at the perovskite/ETL interface, thereby increasing non‐radiative recombination.
Lea Zimmermann, Dorothee Menzel, Richard Gundermann, Maxim Simmonds, Florian Scheler, Thomas Gries, Edgar Nandayapa, Andres Felipe Castro Mendez, Florian Mathies, Aleksandra Miaskiewicz, Emil J. W. List‐Kratochvil, Philippe Holzhey, Artem Musiienko, Felix Lang, Lars Korte, Eike Köhnen, Steve Albrecht   +16 more
wiley   +1 more source

Manipulation of Chemistry and Biology with Visible Light Using Tetra‐ortho‐Substituted Azobenzenes and Azonium Ions

Angewandte Chemie, EarlyView.
Tetra‐ortho‐Azobenzenes (TOABs) in broad daylight: in recent years, TOAB photoswitches became indispensable tools for all‐visible‐light manipulation of chemistry, biology and materials. This review explores their unique photochemical properties, design and synthetic approaches, offering support in choosing a TOAB for a given application.
Francesca Cardano, Rosa Márquez García, Wiktor Szymanski   +2 more
wiley   +2 more sources

Isomerization Mechanism in Hydrazone-Based Rotary Switches: Lateral Shift, Rotation, or Tautomerization? [PDF]

, 2011
Two intramolecularly hydrogen-bonded arylhydrazone (aryl = phenyl or naphthyl) molecular switches have been synthesized, and their full and reversible switching between the E and Z configurations have been demonstrated.
Aprahamian, Ivan, Benítez, Diego, Elhabiri, Mourad, Goddard, William A., III, Lafranchi, Don Antoine, Landge, Shainaz M., Tkatchouk, Ekaterina   +6 more
core   +1 more source

Swarm‐Optimized ZnO/CdS/CIGS/GaAs Solar Cell for Enhanced Efficiency and Thermal Resilience

Advanced Energy and Sustainability Research, EarlyView.
This article addresses the problem of optimizing the efficiency and thermal resilience of ZnO/CdS/CIGS solar cells, which are promising but still face challenges in maximizing performance under high‐temperature conditions and concentrated sunlight. The main issue is enhancing the efficiency of these cells while also ensuring that they can withstand the
Habib Ullah Manzoor, Tareq Manzoor, Sajjad Hussain, Muhammad Nasir Manzoor, Ahmed Zoha   +4 more
wiley   +1 more source

Synthesis and Characterization of Photoswitchable Covalent Ligands for the β2‐Adrenoceptor

Angewandte Chemie, EarlyView.
A structure‐based design of a covalent photoswitchable ligand for the β2‐adrenergic receptor, a therapeutically relevant GPCR, is described. This tool facilitates the modification of the intrinsic activity of the protein by light. Computational analysis of its mechanism of action suggests that the photoswitch takes place within the binding pocket ...
Ulrike Wirth, Eduard Neu, Davide Provasi, Steffen Feustel, Maximilian F. Schmidt, Harald Hübner, Dorothée Weikert, Marta Filizola, Burkhard König, Peter Gmeiner   +9 more
wiley   +2 more sources

Medical management of inflammatory bowel disease [PDF]

, 1999
Patients who have recently been diagnosed as suffering from inflammatory bowel disease face two disturbing realities: firstly the true cause of the disease has not yet been defined and secondly the long term prognosis is unpredictable.
Pullicino, Edgar
core