Results 81 to 90 of about 267,753 (326)

Ultraviolet Raman Spectroscopy of Single and Multi-layer Graphene

, 2009
We investigated Raman spectra of single-layer and multi-layer graphene under ultraviolet laser excitation at the wavelength of 325 nm. It was found that while the G peak of graphene remains pronounced in UV Raman spectra, the 2D band intensity undergoes ...
Alexander A. Balandin, Baranov A. V., Calizo I., Cardona M., Guanxiong Liu, Igor Bejenari, Irene Calizo, Muhammad Rahman   +7 more
core   +1 more source

VUV/EUV ionising radiation and atoms and ions: dual laser plasma investigations [PDF]

, 2004
The interaction of ionising radiation with atoms and ions is a key fundamental process. This report concentrates on studies of photoexcitation/photoionisation using laser-produced plasmas as continuum sources and synchronised laser plasma plumes to ...
Adam, Aguilar, AlMoussalami, Andruszkow, Ayvazyan, Azuma, Azuma, Ballofet, Bauer, Beutler, Bizau, Bizau, Boyle, Brewczyk, Cantu, Carillon, Carroll, Carroll, Carroll, Carroll, Carroll, Carroll, Chakraborty, Cheng, Cheng, Chung, Chung, Chung, Chung, Clark, Codling, Codling, Conneely, Connerade, Connerade, Cooper, Costello, Costello, Costello, Cowan, Cubaynes, De Bruijn, Diehl, Diehl, Diehl, Diehl, Diehl, Diehl, Diehl, Dietz, Dolmatov, Donnelly, Dundas, Dunne, Dunne, E.T Kennedy, Edlen, Edlen, Fawcett, Feldhaus, Gabriel, Garton, Garton, Grant, Greene, Grujic, Haensel, Haire, Hartman, Hasbani, Hibbert, Hirsch, Hirsch, Hopfield, J.-P Mosnier, J.T Costello, Jannitti, Jannitti, Kennedy, Kennedy, Kennedy, Kennedy, Kennedy, Kiernan, Kiernan, Kiernan, Kjeldsen, Kjeldsen, Kjeldsen, Kornberg, Köble, Köble, Lagutin, Lucatorto, Lyman, Lyman, Lyon, Madden, Mansfield, McGuinness, McGuinness, McGuire, Meighan, Meighan, Millikan, Millikan, Morishita, Morishita, Mosnier, Mosnier, Nicolosi, Novikov, Olsen, Osgood, P van Kampen, Peart, Rau, Recanatini, Richardson, Rossbach, Saenz, Samson, Samson, Schippers, Schmidt, Schulz, Schumann, Schwinger, Sonntag, Sonntag, Speer, Tatchyn, Tomboulian, Tousey, Ullrich, van Kampen, van Kampen, Verbockhaven, Wabnitz, Weaver, Wehlitz, Wehlitz, Weidemann, West, West, Williams, Wuilleumier, Wuilleumier   +147 more
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Sub-dekahertz ultraviolet spectroscopy of 199Hg+

, 2000
Using a laser that is frequency-locked to a Fabry-Perot etalon of high finesse and stability, we probe the 5d10 6s 2S_1/2 (F=0) - 5d9 6s 2D_5/2 (F=2) Delta-m_F = 0 electric-quadrupole transition of a single laser-cooled 199Hg+ ion stored in a cryogenic ...
A. A. Madej, A. Clairon, A. D. McLean, B. C. Young, B. C. Young, B. C. Young, Ch. Salomon, D. J. Berkeland, D. J. Wineland, D. J. Wineland, D. J. Wineland, E. Peik, G. J. Perlow, H. G. Dehmelt, H. G. Dehmelt, H. G. Dehmelt, J. A. Beall, J. C. Bergquist, J. C. Bergquist, J. C. Bergquist, J. Reichert, L.-S. Ma, M. E. Poitzsch, M. G. Raizen, N. M. Sampas, O. Acef, P. T. H. Fisk, R. J. Rafac, R. L. Tjoelker, S. Seel, W. M. Itano   +30 more
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Structural, Optical and Photocatalytic Properties of Cerium Oxide Nanoparticles [PDF]

Nanochemistry Research
Sphere-like cerium dioxide nanoparticles were synthesized by a hydrothermal method. The resulting samples were investigated using various techniques, including X-ray powder diffraction spectroscopy (XRD), high-resolution scanning electron microscopy ...
Anbuvannan Mari, Maria Vinosel Vincent, Dhatshanamurthi Pachiyappan, Ramesh Mookkaiah, Uvarajan Sambath   +4 more
doaj   +1 more source

Advanced evaluation of vacuum UV detector- spectroscopy systems for capsule reentry measurements [PDF]

Vacuum ultraviolet detector evaluation - spectroscopy systems for capsule reentry ...
Betz, H. T., Klugman, E. H., Ohlhaber, R. L.   +2 more
core   +1 more source

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Ground Based Ultraviolet Remote Sensing of Volcanic Gas Plumes

Sensors, 2008
Ultraviolet spectroscopy has been implemented for over thirty years to monitorvolcanic SO2 emissions. These data have provided valuable information concerningunderground magmatic conditions, which have been of utility in eruption forecastingefforts ...
Andrew J. S. McGonigle, Euripides P. Kantzas   +1 more
doaj  

Symmetry of molecular Rydberg states revealed by XUV transient absorption spectroscopy

Nature Communications, 2019
Transient absorption spectroscopy is used to identify the structural characteristics of the atoms and molecules. Here the authors used extreme ultraviolet transient absorption spectroscopy to identify the Rydberg state symmetry of aligned molecules.
Peng Peng, Claude Marceau, Marius Hervé, P. B. Corkum, A. Yu. Naumov, D. M. Villeneuve   +5 more
doaj   +1 more source