Article
Chemistry, Physical
Mingxin Zhou, Zunlue Zhu
Summary: The properties of transitions between Omega states of NH originating from different initial states were investigated, revealing variations in radiative lifetimes. The radiative lifetimes of A3 pi 2 state were slightly larger than those of A3 pi state for same upsilon, while almost the same as A3 pi 0(+) and A3 pi 0- states. These results provide useful guidelines for future experimental and theoretical investigations.
COMPUTATIONAL AND THEORETICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Simon Kahmann, Daniele Meggiolaro, Luca Gregori, Eelco K. Tekelenburg, Matteo Pitaro, Samuel D. Stranks, Filippo De Angelis, Maria A. Loi
Summary: This study investigates the origin of broad emission bands in phenylethylammonium-based 2D perovskite materials through experimental and computational methods. The results indicate that emission from halide vacancies is consistent with the experimentally observed features. Emission from self-trapped excitons (STEs) may only contribute to the broad emission bands in wide-band gap compounds.
ACS ENERGY LETTERS
(2022)
Article
Physics, Nuclear
Michael D. Higgins, Chris H. Greene, A. Kievsky, M. Viviani
Summary: This study presents further analysis of the three- and four-neutron systems in the low energy regime using adiabatic hyperspherical methods. The results show no evidence of a 4n resonance at low energy, while the long-range behavior exhibits an attractive universal characteristic in the low-energy regime.
Article
Optics
Luke Masters, Xin-Xin Hu, Martin Cordier, Gabriele Maron, Lucas Pache, Arno Rauschenbeutel, Max Schemmer, Juergen Volz
Summary: The interaction of light with a single two-level emitter is fundamental in quantum optics and has various quantum applications. Contrary to common interpretation, it has been proposed that the photon anticorrelations in the scattered light can be attributed to quantum interference between two different two-photon scattering mechanisms. Experimental validation shows that the remaining light after rejecting the coherent component consists of simultaneously scattered photon pairs by a single two-level atom. This offers insights into light-matter interaction and opens up possibilities for generating highly non-classical light fields.
Article
Chemistry, Physical
Zhi-Hao Wang, Xie Zhang, Su-Huai Wei
Summary: This study demonstrates the crystal structure of cuprous halides and emphasizes the importance of accurate treatment of exchange interactions. The research settles the debate about the ground-state structures of cuprous halides and advances the understanding of phase stability and s-d coupling in semiconductors.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Multidisciplinary Sciences
Gabriele Magris, Irena Jurman, Alice Fornasiero, Eleonora Paparelli, Rachel Schwope, Fabio Marroni, Gabriele Di Gaspero, Michele Morgante
Summary: Research indicates that European wine grapes originated from a single domestication event in Western Asia, followed by multiple introgressions from European wild populations. Italy and France have the highest genetic diversity among wine grapes, with the international wine grapes diffusing from Alpine countries worldwide.
NATURE COMMUNICATIONS
(2021)
Review
Chemistry, Applied
Azucena Rodriguez-Mena, Luz Araceli Ochoa-Martinez, Silvia Marina Gonzalez-Herrera, Olga Miriam Rutiaga-Quinones, Ruben Francisco Gonzalez-Laredo, Begona Olmedilla-Alonso
Summary: This article discusses the latest technologies and applications of plant-derived pigments such as carotenoids, anthocyanins, and betalains. Advanced extraction and encapsulation techniques improve the efficiency of pigment utilization in food, making it more attractive. The application of natural pigments provides health benefits and reduces the risk of various diseases.
Article
Chemistry, Multidisciplinary
Moritz Fischer, Ali Sajid, Jake Iles-Smith, Alexander Hoetger, Denys I. Miakota, Mark K. Svendsen, Christoph Kastl, Stela Canulescu, Sanshui Xiao, Martijn Wubs, Kristian S. Thygesen, Alexander W. Holleitner, Nicolas Stenger
Summary: By combining theory and experiments, we have identified three carbon-based defects as the microscopic origin of luminescent centers in hBN. We have also developed a method to calculate photoluminescence excitation (PLE) maps, which accurately describe the vibronic structure of the optical transition and the phonon-assisted excitation mechanism.
Article
Chemistry, Physical
Jianliang Bai, Guojun Yuan, Yaqing Zhu, Zhujun Huang, Lu Zhang, Xinyu Wang, Shuang Wu, Lili Ren
Summary: Dual-emission N-doped carbon dots were synthesized through a solvothermal reaction and the second emission band of N-CDs can be tuned by changing the polarity of the solvent, showing obvious solvent dependence. The findings greatly improve our understanding of the fluorescence origin of CDs and help guide future preparations of novel nanomaterials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Forestry
Yu-Jie Shi, Jia-Xuan Mi, Jin-Liang Huang, Fang He, Liang-Hua Chen, Xue-Qin Wan
Summary: Through extensive investigation of Populus on the Plateau and its surrounding areas, two taxa (Populus kangdingensis and Populus schneideri var. tibetica) with similar morphology and habitat were found. They were identified as hybrid progenies of P. xiangchengensis and P. simonii. This study provides a novel and comprehensive method for the phylogeny of Populus and lays a foundation for the development and utilization of poplar resources.
Article
Engineering, Electrical & Electronic
Wei Tao, Kaiqi Li, Jing Hu, Qianqian Liu, Miao Cheng, Wanfei Li, Yun Ling, Jingsong Wei, Jian Zhou, Zhimei Sun, Bo Liu
Summary: This study investigates the optical/color contrast and structural evolution of Sb2Te phase change material. It is found that Sb2Te film has high optical/color contrast due to the large discrepancy in refractive index and extinction coefficient between as-deposited and crystalline states. Raman spectra analysis reveals that enhanced Sb-Te bonds within the two-dimensional Sb2Te3 plane contribute to the high contrast of Sb2Te. Ab initio calculations further show that the complicated local motif of the as-deposited phase of Sb2Te is caused by excess Sb atoms. Additionally, analysis of the electronic structure suggests that the degree of electronic delocalization may result in the large optical/color contrast of Sb2Te film. This work provides a valuable reference for future color display applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Multidisciplinary Sciences
Letizia Tavagnacco, Ester Chiessi, Leonardo Severini, Silvia Franco, Elena Buratti, Angela Capocefalo, Francesco Brasili, Adriano Mosca Conte, Mauro Missori, Roberta Angelini, Simona Sennato, Claudia Mazzuca, Emanuela Zaccarelli
Summary: We have developed a new gellan force field that provides insight into the aggregation mechanism of gellan. Our simulations reveal the coil to single-helix transition at low concentrations and the formation of higher-order aggregates at high concentrations, occurring through the sequential process of double helix formation and their assembly into superstructures. We also evaluate the role of monovalent and divalent cations, confirming the dominant role of divalent cations through complementary rheology and atomic force microscopy experiments. These findings have implications for the future use of gellan-based systems in various applications ranging from food science to art restoration.
Article
Biology
Seiji Wada, Emi Kawano-Yamashita, Tomohiro Sugihara, Satoshi Tamotsu, Mitsumasa Koyanagi, Akihisa Terakita
Summary: The study reveals that in lamprey pineal organ, UV-sensitive parapinopsin and green-sensitive parietopsin are expressed in separate photoreceptor cells, forming a two-cell system that generates color opponency. This contrasts with the single-cell system described in other vertebrates.
Article
Physics, Applied
Gaiping Lian, Tingyu Liu, Le Yu
Summary: This study investigates the effects of oxygen vacancies on the optical properties of ZnWO4 crystal using density functional theory. By using the HSE and FNV methods, the band edge problem is corrected, and the artificial interactions of charged defects are eliminated. The results show that oxygen vacancies can affect the luminescent properties of the crystal.
MODERN PHYSICS LETTERS B
(2021)
Article
Food Science & Technology
Roman Bleha, Tetiana Shevtsova, Martina Zivcakova, Anna Korbarova, Martina Jezkova, Ivan Salon, Jan Brindza, Andriy Synytsya
Summary: Bee pollen samples were discriminated using vibrational spectroscopic methods by connecting with botanical sources, composition, and color. Fourier transform mid- and near-infrared (FT-MIR, FT-NIR), and FT-Raman spectra of bee pollen samples were measured and processed by principal component analysis (PCA), showing marked sensitivity to bee pollen composition. Furthermore, the combination of imaging, spectroscopic, and statistical methods is a potent tool for bee pollen discrimination.
Article
Engineering, Electrical & Electronic
D. Lasi, M. Tulej, S. Meyer, M. Luthi, A. Galli, D. Piazza, P. Wurz, D. Reggiani, H. Xiao, R. Marcinkowski, W. Hajdas, A. Cervelli, S. Karlsson, T. Knight, M. Grande, S. Barabash
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
(2017)
Article
Chemistry, Analytical
R. Wiesendanger, M. Tulej, A. Riedo, S. Frey, H. Shea, P. Wurz
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2017)
Article
Chemistry, Analytical
Pavel Moreno-Garcia, Valentine Grimaudo, Andreas Riedo, Alena Cedeno Lopez, Reto Wiesendanger, Marek Tulej, Cynthia Gruber, Emanuel Lortscher, Peter Wurz, Peter Broekmann
ANALYTICAL CHEMISTRY
(2018)
Article
Chemistry, Analytical
Valentine Grimaudo, Pavel Moreno-Garcia, Alena Cedeno Lopez, Andreas Riedo, Reto Wiesendanger, Marek Tulej, Cynthia Gruber, Emanuel Lortscher, Peter Wurz, Peter Broekmann
ANALYTICAL CHEMISTRY
(2018)
Article
Chemistry, Analytical
Valentine Grimaudo, Pavel Moreno-Garcia, Alena Cedeno Lopez, Andreas Riedo, Reto Wiesendanger, Marek Tulej, Cynthia Gruber, Emanuel Loertscher, Peter Wurz, Peter Broekmann
ANALYTICAL CHEMISTRY
(2018)
Article
Astronomy & Astrophysics
A. Galli, A. Vorburger, P. Wurz, R. Cerubini, M. Tulej
Article
Chemistry, Analytical
A. Cedeno Lopez, V. Grimaudo, P. Moreno-Garcia, A. Riedo, M. Tulej, R. Wiesendanger, P. Wurz, P. Broekmann
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2018)
Article
Astronomy & Astrophysics
A. Galli, A. Vorburger, P. Wurz, A. Pommerol, R. Cerubini, B. Jost, O. Poch, M. Tulej, N. Thomas
PLANETARY AND SPACE SCIENCE
(2018)
Article
Instruments & Instrumentation
Stefan Meyer, Marek Tulej, Peter Wurz
REVIEW OF SCIENTIFIC INSTRUMENTS
(2018)
Article
Astronomy & Astrophysics
Reto Wiesendanger, David Wacey, Marek Tulej, Anna Neubeck, Magnus Ivarsson, Valentine Grimaudo, Pavel Moreno-Garcia, Alena Cedeno-Lopez, Andreas Riedo, Peter Wurz
Article
Automation & Control Systems
Reto Wiesendanger, Marek Tulej, Valentine Grimaudo, Alena Cedeno-Lopez, Rustam Lukmanov, Andreas Riedo, Peter Wurz
JOURNAL OF CHEMOMETRICS
(2019)
Review
Electrochemistry
Valentine Grimaudo, Pavel Moreno-Garcia, Andreas Riedo, Alena Cedeno Lopez, Marek Tulej, Reto Wiesendanger, Peter Wurz, Peter Broekmann
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Proceedings Paper
Engineering, Aerospace
Rico G. Fausch, Peter Wurz, Marek Tulej, Juerg Jost, Pascal Gubler, Mario Gruber, Davide Lasi, Claudio Zimmermann, Thomas Gerber
2018 IEEE AEROSPACE CONFERENCE
(2018)
Article
Chemistry, Analytical
Valentine Grimaudo, Pavel Moreno-Garcia, Andreas Riedo, Stefan Meyer, Marek Tulej, Maike B. Neuland, Miklos Mohos, Christoph Guetz, Siegfried R. Waldvogek, Peter Wurz, Peter Broekmann
ANALYTICAL CHEMISTRY
(2017)
Article
Geosciences, Multidisciplinary
Stefan Meyer, Marek Tulej, Peter Wurz
GEOSCIENTIFIC INSTRUMENTATION METHODS AND DATA SYSTEMS
(2017)