Results 81 to 90 of about 484,156 (381)

Analysis of the Fe 2p XPS for hematite α Fe2O3: Consequences of covalent bonding and orbital splittings on multiplet splittings.

Journal of Chemical Physics, 2020
The origins of the complex Fe 2p X-Ray Photoelectron Spectra (XPS) of hematite (α-Fe2O3) are analyzed and related to the character of the bonding in this compound.
P. Bagus, C. Nelin, C. Brundle, N. Lahiri, E. Ilton, K. Rosso   +5 more
semanticscholar   +1 more source

Defect-related versus excitonic visible light emission from ion beam synthesized Si nanocrystals in SiO2 [PDF]

, 1996
Two sources of room temperature visible luminescence are identified from SiO2 films containing ion beam synthesized Si nanocrystals. From a comparison of luminescence spectra and photoluminescence decay lifetime measurements between Xe + -implanted SiO2 ...
Atwater, Harry A., Brongersma, M. L., Min, K. S., Polman, A., Shcheglov, K. V., Yang, C. M.   +5 more
core   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Investigation on microstructure and its transformation mechanisms of B2O3-SiO2-Al2O3-CaO brazing flux system

High Temperature Materials and Processes, 2020
The B2O3-SiO2-Al2O3-CaO brazing fluxes and slags were investigated by using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR).
Zhou FangMing, Xu DongHao, Shi MingXiao, Bi YanHua   +3 more
doaj   +1 more source

Effect of photoionized plasma and EUV induced surface modification on physico-chemical properties and cytocompatibility of PLLA

eXPRESS Polymer Letters, 2020
In this work, low-temperature photoionized plasma, induced in N2 by extreme ultraviolet (EUV) pulses, was used for surface modification of poly(L-lactic acid) (PLLA).
J. Czwartos, B. Budner, A. Bartnik, W. Kasprzycka, H. Fiedorowicz   +4 more
doaj   +1 more source

Surface characterization and surface electronic structure of organic quasi-one-dimensional charge transfer salts [PDF]

, 2003
We have thoroughly characterized the surfaces of the organic charge-transfer salts TTF-TCNQ and (TMTSF)2PF6 which are generally acknowledged as prototypical examples of one-dimensional conductors.
A. J. Epstein, A. J. Epstein, A. Sekiyama, A. Sekiyama, B. Dardel, B. Dardel, C. Coluzza, C. D. Wagner, C. Rojas, C. S. Jacobsen, D. Purdie, F. Zwick, F. Zwick, G.-H. Gweon, I. Ikemoto, J. Fraxedas, J. J. Ritsko, J. J. Yeh, J. M. Lindquist, J. Moser, J. Voit, J. Voit, M. A. Butler, M. Dressel, M. Dumm, M. Ishida, M. Sing, M. Tokumoto, N. Ara, N. Koch, N. Thorup, R. Claessen, R. Claessen, R. Claessen, R. Fainchtein, R. Liu, R. Liu, R. M. Metzger, R. S. Swingle, II, S. Doniach, S. Söderholm, S. Söderholm, T. J. Kistenmacher, T. Nishiguchi, T. Sleator, T. Takahashi, U. Schwingenschlögl, V. Meden, V. Vescoli, W. D. Grobman, W. D. Grobman, Y. Hwu   +51 more
core   +2 more sources

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Gravitational lensing by a charged black hole of string theory

, 2003
We study gravitational lensing by the Gibbons-Maeda-Garfinkle-Horowitz-Strominger (GMGHS) charged black hole of heterotic string theory and obtain the angular position and magnification of the relativistic images. Modeling the supermassive central object
A. Bhadra, A. Bhadra, A. Sen, C.G. Callan, D. Garfinkle, D. Garfinkle, D. Richstone, D.J. Gross, E.F. Eiroa, G.W. Gibbons, G.W. Gibbons, J. Magorrian, J. Scherk, J.D. Gegenberg, K.S. Virbhadra, K.S. Virbhadra, R. Myers, S. Frittelli, V. Bozza, V. Bozza   +19 more
core   +1 more source

XPS and XMCD study of Fe3O4/GaAs interface [PDF]

, 2005
Ultrathin Fe oxide films of various thicknesses prepared by post-growth oxidation on GaAs(100) surface have been investigated with X-ray photoelectron spectroscopy (NPS), X-ray absorption spectroscopy (XAS), and X-ray magnetic circular dichroism (XMCD ...
Ahmad, E, Claydon, J S, Lu, Y X, Thompson, S M, van der Laan, G, Wilson, Karen, Xu, Y B   +6 more
core   +1 more source

Rapid Sintering of Porous Organic Polymer Powders Into Mechanically Strong Monoliths for Efficient CO2 Capture

Advanced Functional Materials, EarlyView.
Spark plasma sintering enables rapid processing of porous organic polymer (POP) from fine powders to a freestanding and mechanically robust monolith. The sintering process retains the CO2 adsorption capacity and CO2/N2 selectivity, making the monolith more suitable as a solid sorbent for practical carbon capture applications.
Duan Li, Tianhui Shi, Sirui Ran, Lei Zeng, Chao Xu   +4 more
wiley   +1 more source