Results 81 to 90 of about 361,851 (280)

Nanoscale Agglomeration Mechanisms of BF‐DPB:BPyMPM Donor–Acceptor Systems for Organic Optoelectronic Devices

Advanced Functional Materials, EarlyView.
The intermolecular and molecule‐substrate interactions and resulting molecular assembly of the OLED and OPV donor and acceptor molecules BF‐DPB and BPyMPM are investigated on different single crystalline substrates using high‐resolution scanning probe microscopy.
Milena Merkel, Philipp Wiesener, Robert Schmidt, Rishi Shivhare, Nikos Doltsinis, Rudolf Bratschitsch, Saeed Amirjalayer, Koen Vandewal, Harry Mönig   +8 more
wiley   +1 more source

On proximal contractions via implicit relations and best proximity points [PDF]

arXiv, 2020
In this paper, we employ two types of implicit relations to define some new kind of proximal contractions and study about their best proximity points. More precisely, we use two class of functions $\mathcal{A}$ and $\mathcal{A}'$ to explore proximal $\mathcal{A}$, $\mathcal{A}'$-contractions of first and second type and strong proximal $\mathcal{A}$, $\
arxiv  

Best Proximity Point Results for Multi-Valued Mappings in Generalized Metric Structure

Symmetry
In this paper, we introduce the novel concept of generalized distance denoted as Jθ and call it an extended b-generalized pseudo-distance. With the help of this generalized distance, we define a generalized point to set distance Jθ(u,H★), a generalized ...
Asad Ullah Khan, Maria Samreen, Aftab Hussain, Hamid Al Sulami   +3 more
semanticscholar   +1 more source

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

Advanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu, Hao Wu, Hoi Ying Chung, Yun Hau Ng   +3 more
wiley   +1 more source

A Common Best Proximity Point Theorem for Ï•-dominated Pair

European Journal of Pure and Applied Mathematics, 2018
In the present research, an interesting common best proximity point theorem for pairs of non-self-mappings is presented. It satises a weakly contraction-like condition, thereby producing common optimal approximate solutions of certain simultaneous xed ...
M. Iranmanesh, Ali Ganjbakhsh Sanatee
semanticscholar   +1 more source

Inter‐Layer Diffusion of Excitations in 2D Perovskites Revealed by Photoluminescence Reabsorption

Advanced Functional Materials, EarlyView.
Inter‐layer diffusion of photoexcitations is monitored in thin films of the 2D perovskite (PEA)2PbI4 by tracking time‐dependent changes in photoluminescence spectra induced by photon reabsorption effects. A low out‐of‐plane excitation diffusion coefficient of 0.26 × 10−4 cm2 s−1 is determined through 1D diffusion modeling.
Jiaxing Du, Marcello Righetto, Manuel Kober‐Czerny, Siyu Yan, Karim A. Elmestekawy, Henry J. Snaith, Michael B. Johnston, Laura M. Herz   +7 more
wiley   +1 more source

Best Proximity Point Theorems for Maia-Type Contraction Mappings

Electronic journal of mathematical analysis and applications
. The Maia fixed point theorem is one of the interesting generalizations of the well-known Banach contraction principle. In this manuscript, we introduce two notions called mixed UC − property and mixed P − property of a pair ( A,B ) of nonempty subsets ...
Sankar Raj Vaithilingam, A. K
semanticscholar   +1 more source

Near‐Infrared Circularly Polarized Electroluminescence with Switchable Handedness in Organic LEDs

Advanced Functional Materials, EarlyView.
The first fully‐organic circularly polarized near‐infrared OLED, using a co‐assembled active layer of ITIC and a chiral inducer, exhibits dissymmetry values up to 0.074 and 1.65 Wsr−1m−2 radiance. The circular polarization sign can be switched by manipulating the position of the recombination zone, resulting in enhanced device performance and stability.
Francesco Zinna, Chiara Botta, Silvia Luzzati, Lorenzo Di Bari, Umberto Giovanella   +4 more
wiley   +1 more source

Some remarks on "Convergence of Picard's iteration using projection algorithm for noncyclic contractions" [Indag. Math. 30 (2019) 227--239] [PDF]

arXiv, 2019
In this note, at first we prove that the existence of best proximity points for cyclic relatively nonexpansive mappings is equivalent to the existence of best proximity pairs for noncyclic relatively nonexpansive mappings in the setting of strictly convex Banach spaces by using the projection operator. In this way, we conclude that a main result of the
arxiv  

The Role of Fluorine‐Functionalized Organic Spacers for Defect Passivation and Low‐Dimensional Phase Formation in 3D MAPI Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
Fluorine‐functionalized organic spacers (2F, 3F, 5F) are investigated to identify as optimal passivation agents for 3D MAPI perovskite solar cells (PSCs). The study highlights how altering fluorine positioning affects defect passivation, low‐dimensional phase (LDP) formation, and stability, emphasizing its role in molecular interactions and offering ...
Ali Semerci, Javier Urieta‐Mora, Sander Driessen, Ali Buyruk, Rik Hooijer, Agustín Molina‐Ontoria, Bülent Alkan, Seckin Akin, Mattia Fanetti, Harishankar Balakrishnan, Achim Hartschuh, Shuxia Tao, Nazario Martín, Peter Müller‐Buschbaum, Saim Emin, Tayebeh Ameri   +15 more
wiley   +1 more source