Results 81 to 90 of about 198,128 (395)

Over 18% Efficiency from Halogen‐Free Solvent‐Processed Polymer Solar Cells Enabled by Asymmetric Small Molecule Acceptors with Fluoro‐Thienyl Extended Terminal

Advanced Functional Materials, EarlyView.
An asymmetric non‐fullerene acceptor BTP‐FT is developed by extending the end group of Y6‐BO with thiophene. The conformation of the molecule is determined by the noncovalent F···S interaction as demonstrated by 2D NMR and simulations. An efficiency of 18.39% is achieved in the resulting ternary solar cells processed from toluene.
Jingnan Wu, Fengbo Sun, Xinxin Xia, Leandro R. Franco, Qiaonan Chen, Yúang Fu, Rafael B. Ribeiro, Xinhui Lu, C. Moyses Araujo, Xunchang Wang, Renqiang Yang, Xia Guo, Donghong Yu, Maojie Zhang, Ergang Wang   +14 more
wiley   +1 more source

Orbital magnetic phase and pure persistent spin current in spin-orbit coupling mesoscopic rings [PDF]

EPL, 86 (2009) 67009, 2015
By solving the Rashba model of mesoscopic rings, we give analytically the ground-state properties of the ring, including the spin polarization, the persistent charge and spin currents (PCC and PSC). These ground-state properties can be given based on four kinds of electron numbers in rings.
arxiv   +1 more source

Etiology, Epidemiology, and Therapeutic Approaches for Primary Sclerosing Cholangitis in the Context of Concurrent Non-specific Inflammatory Bowel Diseases

Journal of Education, Health and Sport
Introduction: Primary sclerosing cholangitis (PSC) is a chronic, idiopathic disease characterized by persistent and progressive inflammation of the intrahepatic and/or extrahepatic bile ducts. This leads to fibrosis, cholestatic complications, and liver
Anna Olszewska, Karolina Matyja, Aleksandra Berner, Katarzyna Stencel, Karina Stelmaszak, Klaudia Marczyk, Paulina Polak, Maciej Pękała, Monika Polaszek, Marta Bogowska   +9 more
doaj   +1 more source

The mucosa-associated microbiota of PSC patients is characterized by low diversity and low abundance of uncultured Clostridiales II.

Journal of Crohn's & Colitis, 2015
BACKGROUND Primary sclerosing cholangitis (PSC) is a cholestatic liver disease that is strongly associated with a particular phenotype of inflammatory bowel disease (IBD) with right-sided colonic involvement.
N. Rossen, S. Fuentes, K. Boonstra, G. D'Haens, H. Heilig, E. Zoetendal, W. D. de Vos, C. Ponsioen   +7 more
semanticscholar   +1 more source

Enhancing Indoor Photovoltaic Efficiency to 37.6% Through Triple Passivation Reassembly and n‐Type to p‐Type Modulation in Wide Bandgap Perovskites

Advanced Functional Materials, EarlyView.
Triple Passivation Treatment (TPT) strategy enables 1.75 eV wide‐bandgap perovskite solar cells (WB‐PSCs) with suppressed halide phase segregation and n‐to‐p type surface transition. The photoluminescence quantum yield increases from 0.5 to 2.1%, indicating reduced non‐radiative losses.
Siming Huang, Shanyue Hou, Galyam Sanfo, Jingdong Xu, Yuting Wang, Himal Muwanwella, Lukas Pfeifer, Xiang Liu, Shaik M Zakeeruddin, Yuelong Huang, Michael Grätzel, Muhammad Tariq Sajjad, Mojtaba Abdi‐Jalebi   +12 more
wiley   +1 more source

Dynamic network analysis improves protein 3D structural classification [PDF]

arXiv, 2021
Protein structural classification (PSC) is a supervised problem of assigning proteins into pre-defined structural (e.g., CATH or SCOPe) classes based on the proteins' sequence or 3D structural features. We recently proposed PSC approaches that model protein 3D structures as protein structure networks (PSNs) and analyze PSN-based protein features, which
arxiv  

The evolutionary status of the UX Orionis star RZ Piscium

, 2010
The star RZ Psc is one of the most enigmatic members of the UX Ori star family. It shows all properties that are typical for these stars (the light variability, high linear polarization in deep minima, the blueing effect) except for one: it lacks any ...
Grinin, V. P., Musaev, F. A., Potravnov, I. S.   +2 more
core   +1 more source

Hole Transfer Dynamics in Thin Films of Mixed‐Dimensional Quasi‐2D Perovskites

Advanced Functional Materials, EarlyView.
Charge transfer dynamics in quasi‐2D perovskite (PEA2MAn−1PbnI3n+1), grown with a distinct dimensionality gradient are investigated. Selective excitation of the n = 4 phase reveals efficient hole transfer to n = 2 and n = 3 within tens of picoseconds, while n = 1 acts as a hole‐blocking layer. These findings highlight the importance of minimizing n = 1
Giuseppe Ammirati, Stefano Turchini, Francesco Toschi, Patrick O'Keeffe, Alessandra Paladini, Faustino Martelli, Reem Khanfar, Daimiota Takhellambam, Sara Pescetelli, Antonio Agresti, Daniele Catone   +10 more
wiley   +1 more source

Concordances in Positive Scalar Curvature and Index Theory [PDF]

arXiv, 2023
We apply the strategy to study of diffeomorphisms via block diffeomorphisms to the world of positive scalar curvature (psc) metrics. For each closed psc manifold $M$, we construct the cubical set $\widetilde{\mathcal{R}^{+}_{\bullet}}(M)$ of all psc block metrics, which only encodes concordance information of psc metrics within its homotopy type.
arxiv  

Green Solvent Enabled Perovskite Ink for Ambient‐Air‐Processed Efficient Inkjet‐Printed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
This study explores an eco‐friendly solvent with 1,3‐dimethyl‐2‐imidazolidinone for developing perovskite ink, enhancing grain size and formation of purer phase perovskite. The inkjet‐printed perovskite solar cells demonstrated a remarkable improvement in device power conversion efficiency from 14.6% to almost 17.8%, highlighting sustainable innovation
Vinayak Vitthal Satale, Sagnik Chowdhury, Asmaa Mohamed, Do‐Hyung Kim, Sinyoung Cho, Jong‐Soo Lee, Jae‐Wook Kang   +6 more
wiley   +1 more source