Results 111 to 120 of about 17,751 (261)

X-ray photon correlation spectroscopy studies of the dynamics of self-assembling block copolymer structures

, 2004
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.Vita.Includes bibliographical references (p. 224-234).Several improvements presented to the emerging technique of X-ray Photon Correlation Spectroscopy.
Falus, Péter, 1972-
core  

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

Advanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang, Christopher Wöpke, Toni Seiler, Jared Faisst, Mathias List, Meike Kuhn, Bekcy Joseph, Alexander Ehm, Dietrich R. T. Zahn, Yana Vaynzof, Eva M. Herzig, Roderick C. I. Mackenzie, Uli Würfel, Maria Saladina, Carsten Deibel   +14 more
wiley   +1 more source

Real-time tracking of curing process of an epoxy adhesive by X-ray photon correlation spectroscopy

Frontiers in Soft Matter
Introduction: Cross-linkable polymers are in widespread use in a variety of industries because of their thermomechanical toughness, chemical resistance, and adhesive strength.
Leonidas Tsapatsaris, Lutz Wiegart, Stanislas Petrash, Tobias Baumeister, Thomas Engels, Maya Endoh, Tadanori Koga, Tadanori Koga   +7 more
doaj   +1 more source

Analysis strategy for ultrafast X-ray photon correlation spectroscopy

MRS Communications
Abstract We explain an analysis strategy for ultrafast X-ray photon correlation spectroscopy, a technique enabled by X-ray free electron lasers to probe nano- and atomic-scale dynamics in complex systems on nanosecond timescales or faster.
Yanwen Sun, Mark Sutton, Shuai Wei
openaire   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Characterisation of silicon nanoparticles produced by mechanical attrition using scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoemission spectroscopy

, 2012
Includes abstract.Includes bibliographical references.The establishment of printing technologies, using nanoparticle based inks, promises inexpensive manufacture of electronic devices.
Unuigbe, David Moweme
core  

The X-ray Correlation Spectroscopy instrument at the Linac Coherent Light Source [PDF]

, 2015
The X-ray Correlation Spectroscopy instrument is dedicated to the study of dynamics in condensed matter systems using the unique coherence properties of free-electron lasers. It covers a photon energy range of 4–25 keV.
Stefanescu, Daniel, Chollet, Matthieu, Sikorski, Marcin, Damiani, Daniel S., Nelson, Silke, Defever, Jim, Srinivasan, Venkat, LEE, SOOHEYONG, Curtis, Robin, Robert, Aymeric, Glownia, James M., Alonso-Mori, Roberto, Zhu, Diling, Feng, Yiping, Bong, Eric, Lemke, Henrik Till, Song, Sanghoon, caronna, chiara, Flath, Daniel L.   +18 more
core   +1 more source

Hard X-rays as pump and probe of atomic motion in oxide glasses

Scientific Reports, 2017
Nowadays powerful X-ray sources like synchrotrons and free-electron lasers are considered as ultimate tools for probing microscopic properties in materials.
B. Ruta, F. Zontone, Y. Chushkin, G. Baldi, G. Pintori, G. Monaco, B. Rufflé, W. Kob   +7 more
doaj   +1 more source

Unveiling Exsolution‐Induced Giant Electronic and Magnetic Property Changes in Non‐Stoichiometric Titanate Perovskite Thin Films

Advanced Materials, EarlyView.
A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim, June Ho Lee, Yaolong Xing, Dongchang Kim, Haeseong Jeong, Mongjun Jeong, Manuel Valvidares, Stuart S. P. Parkin, Sang Ho Oh, Donghwa Lee, Hyojin Yoon, Hyeon Han   +11 more
wiley   +1 more source