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Journal articles on the topic 'Vaccum Ultraviolet absorption spectroscopy with synchrotron radiation'

Author: Grafiati

Published: 5 October 2024

Last updated: 31 July 2025

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1

Aiura, Yoshihiro, Kenichi Ozawa, Kazuhiko Mase, Makoto Minohara, and Satoshi Suzuki. "Development of a high-precision XYZ translator and estimation of beam profile of the vacuum ultraviolet and soft X-ray undulator beamline BL-13B at the Photon Factory." Journal of Synchrotron Radiation 27, no. 4 (2020): 923–33. http://dx.doi.org/10.1107/s1600577520006712.

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A high-precision XYZ translator was developed for the microanalysis of electronic structures and chemical compositions on material surfaces by electron spectroscopy techniques, such as photoelectron spectroscopy and absorption spectroscopy, utilizing the vacuum ultraviolet and soft X-ray synchrotron radiation at an undulator beamline BL-13B at the Photon Factory. Using the high-precision translator, the profile and size of the undulator beam were estimated. They were found to strongly depend on the photon energy but were less affected by the polarization direction. To demonstrate the microscop

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2

Kooser, Kuno, Antti Kivimäki, Paavo Turunen, et al. "Gas-phase endstation of electron, ion and coincidence spectroscopies for diluted samples at the FinEstBeAMS beamline of the MAX IV 1.5 GeV storage ring." Journal of Synchrotron Radiation 27, no. 4 (2020): 1080–91. http://dx.doi.org/10.1107/s1600577520007146.

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Since spring 2019 an experimental setup consisting of an electron spectrometer and an ion time-of-flight mass spectrometer for diluted samples has been available for users at the FinEstBeAMS beamline of the MAX IV Laboratory in Lund, Sweden. The setup enables users to study the interaction of atoms, molecules, (molecular) microclusters and nanoparticles with short-wavelength (vacuum ultraviolet and X-ray) synchrotron radiation and to follow the electron and nuclear dynamics induced by this interaction. Test measurements of N2 and thiophene (C4H4S) molecules have demonstrated that the setup can

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Mendes, Mónica, Fábris Kossoski, Ana I. Lozano, et al. "Excited States of Bromopyrimidines Probed by VUV Photoabsorption Spectroscopy and Theoretical Calculations." International Journal of Molecular Sciences 22, no. 12 (2021): 6460. http://dx.doi.org/10.3390/ijms22126460.

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We report absolute photoabsorption cross sections for gas-phase 2- and 5-bromopyrimidine in the 3.7–10.8 eV energy range, in a joint theoretical and experimental study. The measurements were carried out using high-resolution vacuum ultraviolet synchrotron radiation, with quantum chemical calculations performed through the nuclear ensemble approach in combination with time-dependent density functional theory, along with additional Franck–Condon Herzberg–Teller calculations for the first absorption band (3.7–4.6 eV). The cross sections of both bromopyrimidines are very similar below 7.3 eV, devi

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4

Ubachs, W., E. J. Salumbides, M. T. Murphy, H. Abgrall, and E. Roueff. "H2/HD molecular data for analysis of quasar spectra in search of varying constants." Astronomy & Astrophysics 622 (February 2019): A127. http://dx.doi.org/10.1051/0004-6361/201834782.

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Context. Absorption lines of H2 and HD molecules observed at high redshift in the line of sight towards quasars are a test ground to search for variation of the proton-to-electron mass ratio μ. For this purpose, results from astronomical observations are compared with a compilation of molecular data of the highest accuracy, obtained in laboratory studies as well as in first-principles calculations. Aims. A comprehensive line list is compiled for H2 and HD absorption lines in the Lyman (B1Σu+ − X1Σg+) and Werner (C1Πu − X1Σg+) band systems up to the Lyman cutoff at 912 Å. Molecular parameters l

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5

Ray, Sekhar Chandra. "Comparison of Electronic Structure and Magnetic Properties of Few Layer Graphene and Multiwall Carbon Nanotubes." Advances in Materials Science and Engineering 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/7362131.

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A comparative study has been made for the non-catalyst based few layer graphene (FLG) and Fe-catalyst based multiwall carbon nanotubes (MWCNTs). Magnetic and electronic properties of FLG and MWCNTs were studied using magnetic M-H hysteresis loops and synchrotron radiation based X-ray absorption fine structure spectroscopy measurements. Structural defects and electronic and bonding properties of FLG/MWCNTs have been studied using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS). The work functions of FLG and MWCNTs are 4.01 eV and 3.79

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6

Zheng, Kai, Siying Liu, Juncheng Zhu, et al. "High‐rate CO2‐to‐CH4 Photoreduction by Dual‐proton Hydrogenation Pathway Over Pd‐Anchored Oxygen‐Deficient ZnO Nanosheets." Angewandte Chemie International Edition, June 11, 2025. https://doi.org/10.1002/anie.202508259.

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Photoreduction of CO2 into CH4 usually comprises upto eight proton‐coupled electron transfer steps, greatly reducing the conversion performance. Here, we report a new dual‐proton hydrogenation pathway for CO2‐to‐CH4 conversion, which can condense every two proton‐coupled electron transfer steps into one single step. Also, we pioneer the use of in situ synchrotron‐radiation vacuum ultraviolet photoionization mass spectrometry to distinguish the crucial HCOOH from COOH intermediates, overcoming the limitation of in situ Fourier‐transform infrared spectroscopy. Taking the synthetic Pd/ZnO‐VO nano

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7

Zheng, Kai, Siying Liu, Juncheng Zhu, et al. "High‐rate CO2‐to‐CH4 Photoreduction by Dual‐proton Hydrogenation Pathway Over Pd‐Anchored Oxygen‐Deficient ZnO Nanosheets." Angewandte Chemie, June 11, 2025. https://doi.org/10.1002/ange.202508259.

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Photoreduction of CO2 into CH4 usually comprises upto eight proton‐coupled electron transfer steps, greatly reducing the conversion performance. Here, we report a new dual‐proton hydrogenation pathway for CO2‐to‐CH4 conversion, which can condense every two proton‐coupled electron transfer steps into one single step. Also, we pioneer the use of in situ synchrotron‐radiation vacuum ultraviolet photoionization mass spectrometry to distinguish the crucial HCOOH from COOH intermediates, overcoming the limitation of in situ Fourier‐transform infrared spectroscopy. Taking the synthetic Pd/ZnO‐VO nano

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8

De Angelis, Dario, Luca Longetti, Gabriele Bonano, et al. "A sub-100 nm thickness flat jet for extreme ultraviolet to soft X-ray absorption spectroscopy." Journal of Synchrotron Radiation 31, no. 3 (2024). http://dx.doi.org/10.1107/s1600577524001875.

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Experimental characterization of the structural, electronic and dynamic properties of dilute systems in aqueous solvents, such as nanoparticles, molecules and proteins, are nowadays an open challenge. X-ray absorption spectroscopy (XAS) is probably one of the most established approaches to this aim as it is element-specific. However, typical dilute systems of interest are often composed of light elements that require extreme-ultraviolet to soft X-ray photons. In this spectral regime, water and other solvents are rather opaque, thus demanding radical reduction of the solvent volume and removal

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9

Kumar, S., D. Duflot, N. C. Jones, S. V. Hoffmann, G. García, and P. Limão-Vieira. "The electronic structure of 2(5H)-thiophenone investigated by vacuum ultraviolet synchrotron radiation and theoretical calculations." European Physical Journal D 77, no. 11 (2023). http://dx.doi.org/10.1140/epjd/s10053-023-00771-w.

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AbstractThe electronic state spectroscopy of 2(5H)-thiophenone, C4H4OS, has been investigated by high-resolution vacuum ultraviolet photoabsorption in the 3.76–10.69 eV energy range using synchrotron radiation, together with novel quantum chemical calculations performed at the equation of motion coupled cluster singles and doubles (EOM-CCSD) level of theory. The major electronic transitions have been assigned to valence and Rydberg character, with relevant C=O, C=C and C–C stretching vibrations across the entire absorption spectrum. Photolysis lifetimes in the Earth’s atmosphere (0–50 km altit

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10

Singh, Param Jeet, Tamaghna Maitra, A. K. Das, et al. "Commissioning and first result of undulator based atomic, molecular, and optical sciences (AMOS) beamline at Indus-2 synchrotron radiation source." Review of Scientific Instruments 95, no. 12 (2024). https://doi.org/10.1063/5.0238362.

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We present a comprehensive overview of the commissioning process and initial results of a synchrotron beamline dedicated to atomic, molecular, and optical sciences at the BL-5 undulator port of the Indus-2 synchrotron facility, Raja Ramanna Center for Advanced Technology, Indore, India. The beamline delivers a photon flux of ∼1012 photons/s with high resolving power (∼10 000) over an energy range of 6–800 eV, making it suitable for high-resolution spectroscopy in atomic, molecular, and optical science. The energy tunability from vacuum ultraviolet to soft x-ray (6–800 eV) is achieved through a

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11

Nakazawa, Ryotaro, Atsushi Matsuzaki, Kohei Shimizu, et al. "Reliable measurement of the density of states including occupied in-gap states of an amorphous In–Ga–Zn–O thin film via photoemission spectroscopies: Direct observation of light-induced in-gap states." Journal of Applied Physics 135, no. 8 (2024). http://dx.doi.org/10.1063/5.0185405.

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Illumination stress (IS) and negative bias under illumination stress (NBIS) cause considerable device instability in thin-film transistors based on amorphous In–Ga–Zn–O (a-IGZO). Models using in-gap states are suggested to explain device instability. Therefore, to provide reliably their density of states (DOS), this study investigated the valence band, conduction band, and in-gap states of an a-IGZO thin film. The DOS of in-gap states was directly determined in a dynamic range of six orders of magnitude through constant final state yield spectroscopy (CFS-YS) using low-energy and low-flux phot

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12

Pankratova, Viktorija, Anna P. Kozlova, Oleg A. Buzanov, et al. "Time-resolved luminescence and excitation spectroscopy of Co-doped Gd3Ga3Al2O12 scintillating crystals." Scientific Reports 10, no. 1 (2020). http://dx.doi.org/10.1038/s41598-020-77451-x.

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AbstractCerium doped Gd3Ga3Al2O12 (GGAG) single crystals as well as GGAG:Ce single crystals co-doped by divalent (Mg2+, Ca2+) and tetravalent (Zr4+, Ti4+) ions have been studied by means of time-resolved luminescence as well as the excitation luminescence spectroscopy in vacuum ultraviolet (VUV) and soft X-ray (XUV) spectral range. Tunable laser excitation was applied for time-resolved experiments in order to obtain luminescence decay curves under excitations in Ce3+, Gd3+ and excitonic absorption bands. The influence of the co-dopant ions on the Ce3+ luminescence decay kinetics is elucidated.

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13

Fleury, Benjamin, Mathilde Poveda, Yves Benilan, et al. "High-temperature measurements of acetylene VUV absorption cross sections and application to warm exoplanet atmospheres." Astronomy & Astrophysics, December 5, 2024. https://doi.org/10.1051/0004-6361/202451638.

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Most observed exoplanets have high equilibrium temperatures (T$_ eq $ > 500 K). Understanding the chemistry of their atmospheres and interpreting their observations requires the use of chemical kinetic models including photochemistry. The thermal dependence of the vacuum ultraviolet (VUV) absorption cross sections of molecules used in these models is poorly known at high temperatures, leading to uncertainties in the resulting abundance profiles. The aim of our work is to study experimentally the thermal dependence of VUV absorption cross sections of molecules of interest for exoplanet atmos

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14

Gonçalves Jr, Sérgio J., Heitor Evangelista, Johannes Weis, et al. "Stratospheric ozone depletion in the Antarctic region triggers intense changes in sea salt aerosol geochemistry." Communications Earth & Environment 4, no. 1 (2023). http://dx.doi.org/10.1038/s43247-023-00739-z.

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AbstractSince the early 1980s, the Antarctic environment has served as a natural field laboratory for researchers to investigate the effects of stratospheric ozone depletion, which has resulted in increased surface ultraviolet radiation levels. However, its effective threats still present gaps. We report new pieces of evidence of increased ultraviolet radiation impacting West Antarctica sea salt aerosols. Salt aerosols, particularly in the Southern Ocean Sea, play an important role in the radiative earth balance. To disclose the molecular details of sea salt aerosols, we used a synchrotron-bas

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15

Chambers, David Keith, and Sandra Selmic. "Advanced Characterization of the Electronic Structure of MEH-PPV." MRS Proceedings 871 (2005). http://dx.doi.org/10.1557/proc-871-i6.20.

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AbstractIn this paper, we present research results that explore the basic molecular structure, orientation, and electrical properties of the conjugated polymer poly(2-methoxy-5- (2,9-ethyl-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV). The bandgap structure of MEH-PPV was investigated through optical absorption and emission spectra, and ultraviolet photoemission spectroscopy (UPS). Based on the optical absorption of MEH-PPV, the π-π* bandgap energy is 2.14eV. The emission spectrum of ITO/MEH-PPV/Al light emitting diode has a peak at 590nm in wavelength which corresponds to photon energies of 2.1e

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16

Milne, Christopher J., Natalia Nagornova, Thomas Pope, et al. "Disentangling the evolution of electrons and holes in photoexcited ZnO nanoparticles." Structural Dynamics 10, no. 6 (2023). http://dx.doi.org/10.1063/4.0000204.

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The evolution of charge carriers in photoexcited room temperature ZnO nanoparticles in solution is investigated using ultrafast ultraviolet photoluminescence spectroscopy, ultrafast Zn K-edge absorption spectroscopy, and ab initio molecular dynamics (MD) simulations. The photoluminescence is excited at 4.66 eV, well above the band edge, and shows that electron cooling in the conduction band and exciton formation occur in &lt;500 fs, in excellent agreement with theoretical predictions. The x-ray absorption measurements, obtained upon excitation close to the band edge at 3.49 eV, are sensiti

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17

Cheng, Benyuan, Hongbo Lou, Abhishek Sarkar, et al. "Pressure-induced tuning of lattice distortion in a high-entropy oxide." Communications Chemistry 2, no. 1 (2019). http://dx.doi.org/10.1038/s42004-019-0216-2.

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Abstract As a new class of multi-principal component oxides with high chemical disorder, high-entropy oxides (HEOs) have attracted much attention. The stability and tunability of their structure and properties are of great interest and importance, but remain unclear. By using in situ synchrotron radiation X-ray diffraction, Raman spectroscopy, ultraviolet–visible absorption spectroscopy, and ex situ high-resolution transmission electron microscopy, here we show the existence of lattice distortion in the crystalline (Ce0.2La0.2Pr0.2Sm0.2Y0.2)O2−δ HEO according to the deviation of bond angles fr

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18

Hernandez Herrera, Cristina, Jesus Gonzalo Canche Tello, Rocio Magaly Cabral Lares, et al. "Interpretation of X‐ray Absorption Spectra by synchrotron radiation of the uranium mineral species transported by the main stream “El Tigre”, in Peña Blanca, Chihuahua, Mexico." Suplemento de la Revista Mexicana de Física 5, no. 1 (2024). https://doi.org/10.31349/suplrevmexfis.5.011202.

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The state of Chihuahua, Mexico, has several uranium deposits. The most important is the Peña Blanca deposit at north of the Chihuahua City. After an intensive exploration in the 80’s, the mineral extracted and unprocessed was confined in rock stacks exposed to weathering. To characterize the transport of uranium by surface water in the form of particles or dissolved, a sampling was carried out in the bed of the stream “El Tigre”. Nine sediment samples were collected near the Nopal 1 mine, and separated into coarse sand, fine sand, silt, and fine silt + clay fractions. The activity concentratio

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19

Zhang Da-cheng, GE Han-xing, BA Yu-lu, et al. "Prospect for attosecond laser spectroscopy of highly charged ions." Acta Physica Sinica, 2023, 0. http://dx.doi.org/10.7498/aps.72.20230986.

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The spectroscopy of highly charged ions (HCI) is of great significance for astronomical observation, astrophysical model establishment, and test of quantum electrodynamics (QED) theory. However, the transitions of HCI are mostly in the extreme ultraviolet or even X-ray range, the excitation spectra of HCI measured by laser spectroscopy in laboratory are very limited due to lack of the suited light source. Up to now, only few experiments on spectroscopy of HCIs performed on synchrotron radiation, free electron laser or heavy-ions storage ring were reported, which are summarized in this work. Wi

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20

Parinova, Elena V., Dmitry Marchenko, Aleksander K. Fedotov та ін. "Спектромикроскопические исследования пористого оксида кремния на кремнии с использованием синхротронного излучения". Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 22, № 1 (2020). http://dx.doi.org/10.17308/kcmf.2020.22/2532.

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Работа посвящена микроскопическим синхротронным исследованиям морфологии, атомного и электронного строения массива пор субмикронного размера в слое SiO2 на кремнии, cформированного с использованием ионно-трековой технологии в комбинации с последующим за облучением химическим травлением. Методом исследования являлась фотоэмиссионная электронная микроскопия с использованием синхротронного излучения высокой интенсивности. Метод использовался в двух режимах. Использование химически селективной электронноймикроскопии позволило получить морфологическую информацию об изучаемом массиве пор. Рентгеносп

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