Results 51 to 60 of about 2,245,854 (375)

Raman Topography and Strain Uniformity of Large-Area Epitaxial Graphene

, 2008
We report results from two-dimensional Raman spectroscopy studies of large-area epitaxial graphene grown on SiC. Our work reveals unexpectedly large variation in Raman peak position across the sample resulting from inhomogeneity in the strain of the ...
Berger C, Das A., de Heer W. A., Emtsev K. V., Faugeras C., Ferrari A. C., Forbeaux I., Geim A., Graf D., Gupta A., Johansson L. I., Ni Z. H., Novoselov K. S., Ohta T., Ohta T., Röhrl J., Seyller T., Vidano R. P.   +17 more
core   +1 more source

Transient coherent Raman scattering in the time and frequency domain [PDF]

, 1980
A new type of Raman spectroscopy is presented: After transient excitation of molecular modes coherently scattered Raman spectra are investigated in a depayed probing experiment.
Akhmanov, Carman, Giordmaine, Kamga, Laubereau, Laubereau, Maker, Penzkofer, Song, W. Zinth, Zinth, Zinth, Zinth, Zinth   +13 more
core   +1 more source

Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings

Advanced Engineering Materials, EarlyView.
Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira, Pietro Cazelatto Bortolini, André Luiz Vidilli, Paulo Wilmar Barbosa Marques, Jéferson Aparecido Moreto, Claudio Shyinti Kiminami, Walter José Botta, Claudemiro Bolfarini, Guilherme Yuuki Koga   +8 more
wiley   +1 more source

Raman spectroscopy: Incorporating the chemical dimension into dermatological diagnosis

Indian Journal of Dermatology, 2016
Raman spectroscopy provides chemical analysis of tissue in vivo. By measuring the inelastic interactions of light with matter, Raman spectroscopy can determine the chemical composition of a sample.
Amit Sharma, Shruti Sharma, Anna Zarrow, Robert A Schwartz, W Clark Lambert   +4 more
doaj   +1 more source

Band-edge Bilayer Plasmonic Nanostructure for Surface Enhanced Raman Spectroscopy

, 2015
Spectroscopic analysis of large biomolecules is critical in a number of applications, including medical diagnostics and label-free biosensing. Recently, it has been shown that Raman spectroscopy of proteins can be used to diagnose some diseases ...
Adibi, Ali, Atabaki, Amir H., Eftekhar, Ali A., Mousavi, S. Hamed Shams   +3 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Super-Resolution Raman Spectroscopy by Digital Image Processing

Journal of Spectroscopy, 2013
We demonstrate the results of a strain (stress) evaluation obtained from Raman spectroscopy measurements with the super-resolution method (the so-called super-resolution Raman spectroscopy) for a Si substrate with a patterned SiN film (serving as a ...
Motohiro Tomita, Hiroki Hashiguchi, Takuya Yamaguchi, Munehisa Takei, Daisuke Kosemura, Atsushi Ogura   +5 more
doaj   +1 more source

Analysis of Cellulose and Lignocellulose Materials by Raman Spectroscopy: A Review of the Current Status

Molecules, 2019
This review is a summary of the Raman spectroscopy applications made over the last 10 years in the field of cellulose and lignocellulose materials. This paper functions as a status report on the kinds of information that can be generated by applying ...
Umesh P. Agarwal
doaj   +1 more source

Thickness Estimation of Epitaxial Graphene on SiC using Attenuation of Substrate Raman Intensity [PDF]

, 2009
A simple, non-invasive method using Raman spectroscopy for the estimation of the thickness of graphene layers grown epitaxially on silicon carbide (SiC) is presented, enabling simultaneous determination of thickness, grain size and disorder using the ...
A.C. Ferrari, A.H. Castro Neto, B. Hornetz, C. Berger, C. Berger, C. Thomsen, E. Rollings, F. Rana, F. Schedin, F. Tuinstra, G. Liang, J.C. Burton, J.M. Dawlaty, J.R. Williams, John J. Boeckl, K.S. Novoselov, K.S. Novoselov, K.S. Novoselov, M. V. S. Chandrashekhar, M.C. Lemme, Michael G. Spencer, P.J. Cumpson, S. Tanuma, Shriram Shivaraman, Y. Wu, Y. Zhang   +25 more
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source