Results 161 to 170 of about 192,349 (315)

Thermoelectric Properties of a Family of Benzodifuranone‐Based Conjugated Copolymers in Oriented Thin Films Doped Sequentially With NDMBI‐H

Advanced Electronic Materials, EarlyView.
Combining high polymer orientation of n‐type copolymers by temperature rubbing and sequential doping with N‐DMBI results in a strong improvement of electrical conductivity and thermoelectric power factors reaching up to 9.8 ± 1.6 S cm−1 and 8 ± 3 µW m−1.K2, respectively.
Shubhradip Guchait, Diego R. Hinojosa, Nathan James Pataki, Said Oummouch, Laurent Herrmann, Mario Caironi, Michael Sommer, Martin Brinkmann   +7 more
wiley   +1 more source

Evaluation of the time–temperature superposition by comparing neat and glass-fibre-reinforced epoxy using dynamic mechanical thermal analysis

Polymer Testing
Dynamic mechanical thermal analysis is a well-established method to determine the influence of temperature and frequencies on polymers. One challenge inherent to this method is the potential for significant changes in material properties, which can ...
Daniel Esse, Benedikt Scheuring, Frank Henning, Wilfried V. Liebig   +3 more
doaj  

Solvated PbI2 Clusters Preceding the Crystallization of Lead Halide Perovskites–a UV/VIS In Situ Study

Advanced Electronic Materials, EarlyView.
This work focuses on the crystallization dynamics in lead iodide perovskite films: In situ UV absorption spectroscopy reveals a PbI2‐DMF solvated (PDS) phase before nucleation, influencing perovskite formation. PDS clusters act as nucleation seeds, linking precursor solution concentration to crystallization.
Maximilian Spies, Simon Biberger, Fabian Eller, Eva M. Herzig, Anna Köhler   +4 more
wiley   +1 more source

A comparison of two algorithms for applying the time-temperature superposition principle [PDF]

, 1990
R. J. Deigan, J. J. Dlubac
openalex   +1 more source

High‐Density Flexible Neural Implants with Submicron Feedline Resolution

Advanced Electronic Materials, EarlyView.
Optimization of microfabrication methods using optical contact lithography (OCL) and electron beam lithography (EBL) enables the fabrication of 64‐channel, high‐density, parylene‐C‐based intracortical implants with submicron feedlines as narrow as 400 and 50 nm, respectively.
Lina Koschinski, Thomas Grap, Erkan Yilmaz, Marius Kleutgens, Simon Decke, Martin Kasavetov, Marie Jung, Alejandro Carnicer‐Lombarte, George Malliaras, Andreas Offenhäusser, Viviana Rincón Montes   +10 more
wiley   +1 more source

Correlating the Photoshunt with Charge‐Collection Losses in Organic Solar Cells

Advanced Energy Materials, EarlyView.
Quantifying charge extraction losses in organic solar cells is crucial for understanding the origin of power losses and, consequently, for improving the performance. An analytical framework is presented that utilizes a readily available observable photoshunt and its correlation with light intensities for evaluating charge transport properties of a ...
Eunchi Kim, Leonard Christen, Thomas Kirchartz   +2 more
wiley   +1 more source

Zinc Grid Based Transparent Electrodes for Organic Photovoltaics

Advanced Energy Materials, EarlyView.
A transparent flexible electrode based on an embedded zinc grid with ≈1 µm linewidth is reported, and its utility as a drop‐in replacement for indium‐tin oxide coated glass electrodes in organic photovoltaic devices is demonstrated. The zinc grids are fabricated using the unconventional approach of condensation coefficient modulation, using a ...
Philip Bellchambers, Louis Ammon, Arielle Fitkin, Matthew Dingley, Marc Walker, Szymon Abrahamczyk, Callum Pritchard, Gabriele C. Sosso, Ross A. Hatton   +8 more
wiley   +1 more source

Ion‐Anchoring Dipole‐Integrated Composite Elastomer Electrolyte and Cathode for High‐Performance Lithium Metal Batteries via Multiple‐Bridge Engineering

Advanced Energy Materials, EarlyView.
The multiple‐bridge engineered composite elastomer electrolyte enhances Li+ transport through ion‐rotating and ion‐anchoring dipole interactions, as well as hydrogen bonding, improving conductivity and promoting uniform Li+ deposition. The composite elastomer cathode improves interfacial stability, resulting in excellent cycling stability in lithium ...
A Hyeon Cho, Ji Hyang Je, U Hyeok Choi
wiley   +1 more source

Effects of Heat-Treated Wood Particles on the Physico-Mechanical Properties and Extended Creep Behavior of Wood/Recycled-HDPE Composites Using the Time-Temperature Superposition Principle. [PDF]

Materials (Basel), 2017
Yang TC, Chien YC, Wu TL, Hung KC, Wu JH.   +4 more
europepmc   +1 more source

Transport Resistance Dominates the Fill Factor Losses in Record Organic Solar Cells

Advanced Energy Materials, EarlyView.
Organic photovoltaics are a promising solar cell technology, but even the record devices with 20% efficiency have significant fill factor losses due to low active layer conductivities. In this Perspective, the authors describe the origin of these losses, discuss experimental methods for their quantification, and explain how to minimize them to optimize
Chen Wang, Roderick C. I. MacKenzie, Uli Würfel, Dieter Neher, Thomas Kirchartz, Carsten Deibel, Maria Saladina   +6 more
wiley   +1 more source