Results 231 to 240 of about 586,659 (284)

How the Carrier Mobility and Seebeck Coefficient of Doped Semiconducting Polymers Are Controlled by Counterion Interactions and Mesoscale Order

Advanced Functional Materials, EarlyView.
Conventional doping of P3HT with F4TCNQ results in poor charge transport. However, when F4TCNQ is exchanged with LiTFSI, the transport characteristics are greatly enhanced. We find the increase in charge transport is directly related to an increase in the mesoscale ordering of P3HT, resulting in longer and better‐connected transport pathways.
Quynh M. Duong, Diego Garcia Vidales, Xinyu Liu, Charlene Z. Salamat, Austin Ready, Hashim Al Khunaizi, Mei Matsumoto, Alexander M. Spokoyny, Sarah H. Tolbert, Benjamin J. Schwartz   +9 more
wiley   +1 more source

Memristor‐Driven Active‐Matrix Organic Light‐Emitting Diode for Energy Efficient and High‐Resolution Displays

Advanced Functional Materials, EarlyView.
This study demonstrates that memristors can replace conventional 2T–1C driving circuits with simplified 1T–1 m architectures by exploiting resistance switching. With ultra‐low switching voltages (< ±0.2 V) and multi‐level resistance states, the memristors precisely control the current injected into organic light‐emitting diodes (OLEDs).
Dong Hyun Kim, Nahyun Kim, Seok Hee Hong, Ho Jin Lee, Jin Suk Oh, Jae Seong Park, Tae Geun Kim   +6 more
wiley   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Homogenous FACsPbI3 Perovskite Solar Cells Enabled by a Seed‐Facilitated Cation Exchange Strategy

Advanced Functional Materials, EarlyView.
A novel seed‐facilitated cation exchange strategy is designed for homogenous FACsPbI3 perovskites using the biomass‐derived solvent γ‐valerolactone. Pre‐deposited 0D Cs4PbI6 seeds induce rapid nucleation and efficient cation exchange, producing a uniform FA–Cs distribution and significantly reducing defect density, enabling high‐performance and stable ...
Meng Ren, Guodong Chen, Haifei Wang, Bowei Li, Yuetian Chen, Jiahao Guo, Yingping Fan, Shaowei Wang, Yanfeng Miao, Feng Gao, Yixin Zhao   +10 more
wiley   +1 more source

Rationally Designed Bilayer Passivation Strategy for High‐Performance Vacuum‐Processed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A bilayer “Anchor‐and‐Seal” passivation strategy using EDAI2 and 4MeO‐PEAI effectively mitigates surface defects in vacuum‐processed perovskite films through synergistic hydrogen bonding and Lewis base coordination. This approach optimizes interfacial energy alignment and suppresses non‐radiative recombination, enabling vacuum‐deposited p‐i‐n ...
Mohammadhossein Kohan, Sang‐Heon Lee, Jaswinder Singh, Sung‐Nam Kwon, Seok‐In Na   +4 more
wiley   +1 more source

Against the grain: Leveraging machine learning to analyze mudbrick structures. [PDF]

PLoS One
Kouki S, Lorenzon M, Cutillas-Victoria B, Lichtenberger A, Schreiber T, Zardaryan M, Hein A, Polymeris G.   +7 more
europepmc   +1 more source

PDCD-DAT - a global database of pyroclastic density current deposit field data. [PDF]

J Appl Volcanol
Brown J, Williams R, Ogburn S, Brand B, Breard ECP, Charbonnier S, Dowey N, Dufek J, Jellinek M, Kueppers U, Lube G, Rowley P.   +11 more
europepmc   +1 more source

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Grain size and grain shape analysis of fault rocks

Tectonophysics, 2006
Abstract New methods for microstructural analysis of fault rocks (new shape descriptors for convexity/concavity and angularity) and visualization (D-mapping) were developed and tested on experimentally deformed granites. The samples were deformed at 300 °C, 500 MPa confining pressure, and 10− 4 s− 1 strain rate. SEM micrographs of the resulting fault
Nynke Keulen
exaly   +2 more sources

The Shape of a Moving Grain Boundary

Physica Status Solidi (a), 1972
An investigation was made of the shape of a bicrystal grain boundary in equilibrium and in motion under the action of a curvature (the free energy of the boundary) and of the difference of the surface energies of the grains. Proceeding from a quasi-equilibrium approximation, methods have been suggested for determining the parameters of a moving ...
A. V. Antonov, Ch. V. Kopezkii, L. S. Shvindlerman, Ya. M. Mukovskii   +3 more
openaire   +1 more source

Shapes of grain inclusions in crystals

Physical Review B, 1985
The ``equilibrium'' shape of a grain (with fixed volume) embedded in a simple-cubic crystal of the same material and rotated by a small angle with respect to the [001] axis is studied. The dislocation model of grain boundaries of Read and Schockley is used to compute the grain-boundary energy as a function of orientation.
, He, , Jayaprakash, , Rottman
openaire   +2 more sources