Michael Neumann‐Spallart

Université Paris-Saclay

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Josef Krýsa

University of Chemistry and Technology, Prague

Michal Veselý

Brno University of Technology

Petr Dzik

Brno University of Technology

K. Kalyanasundaram

National Centre for Radio Astrophysics

Renaud Savalle

Observatoire de Paris

F. Schüller

Leibniz Institute for Astrophysics Potsdam

T. Imrich

University of Chemistry and Technology, Prague

Hana Krýsová

Czech Academy of Sciences, Institute of Physics

Marcela Králová

Brno University of Technology

Nikola Getoff

University of Vienna

Cooperative Institutions

Centre National de la Recherche Scientifique

Indian Institute of Technology Bombay

École Polytechnique Fédérale de Lausanne

TU Wien

Czech Academy of Sciences, J. Heyrovský Institute of Physical Chemistry

University of Vienna

Indian Institute of Technology Indore

Czech Academy of Sciences

École Polytechnique

University of Chemistry and Technology, Prague

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Critical analysis of electrical contacts to layered semiconductors for use in (photo)electrochemical studies

Journal of Electroanalytical Chemistry (1989)

M. Etman Michael Neumann‐Spallart

Photocurrent

Photoconductivity

Photoelectrochemistry

Contact resistance

Electrical contacts

10.1016/0022-0728(89)85148-4

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Citations (7)

Annealing Strategies for Spray Deposited Precursor Films of p-Type CuCr1-xMgxO2

ECS Advances (2024)

M. Boshta Mohammed M. Gomaa Mohamed H. Sayed Hagar Mohamed А. Shengelaya

Abstract Annealing of sprayed pure and Mg-doped CuCrO2 thin films by high-intensity, short-‎time light irradiation leads to a single delafossite phase at comparatively low temperatures ‎compared with traditional furnace annealing. P-type crystalline undoped and Mg-doped ‎CuCrO2 films were obtained within a few minutes by annealing with halogen lamp between 550 and 650°C in Ar atmosphere. Transport properties of Mg-doped thin films were ‎comparable to furnace-annealed samples despite much shorter annealing times. The results ‎demonstrate that post-annealing of chemically-deposited samples using light irradiation is an ‎effective and fast method for obtaining transparent conducting delafossite thin films.

Delafossite

Halogen lamp

10.1149/2754-2734/ad1a74

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Zinc Oxysulfide Thin Films Grown by Pulsed Laser Deposition

Journal of Electronic Materials (2010)

S.H. Deulkar Jow‐Lay Huang Michael Neumann‐Spallart

Wurtzite crystal structure

Lattice constant

Chemical bath deposition

Pulsed Laser Deposition

Hexagonal phase

10.1007/s11664-009-1069-8

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Citations (24)

Photolyse von Monochloressigs�ure bei 253,7 nm in w��riger L�sung

Monatshefte für Chemie - Chemical Monthly (1975)

Michael Neumann‐Spallart Nikola Getoff

10.1007/bf00913610

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A comparison of catalytic activities of hydrogenases and inorganic microheterogeneous hydrogen catalysts

Journal of Molecular Catalysis (1986)

Michael Neumann‐Spallart

Hydrogenase

10.1016/0304-5102(86)87074-2

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MANY-BODY ASPECTS OF THE VACUUM PROBLEM

F. Schüller Michael Neumann‐Spallart Renaud Savalle

The aim of this lecture is to stress the analogy between strongly interacting many-body systems and elementary particle physics in the context of Quantum Field Theory (QFT). The common denominator between these two branches of theoretical physics is the Green’s function or propagator, which is the key for solving specific problems. Here we are concentrating on the vacuum, its excitations and its interaction with electron and photon fields. In a first introductory part we recall the basic facts of second quantization of the Klein- Gordon and the Dirac field and discuss the resulting consequences. Then we define propagators for the Dirac and photon fields and use them to treat interactions of these fields with the vacuum. More specifically we study electron and photon self energies. Moreover we consider electron-electron scattering because of its connection with vacuum polarization. This latter very significant problem is treated by means of the Pauli-Villars regularization method. Note finally that we rely mainly on the book of M.E.Peskin and D.V.Schroeder [3] as far as basic concepts and notations are concerned.

Propagator

Vacuum polarization

Pauli exclusion principle

Source

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Stable Water Insoluble Radicals of 1,1'',1"'-tribenzyl[4,2'; 4',4'; 6',4''']quaterpyridinium Trichloride for Photochromic Films

Materials Express (2011)

Michael Neumann‐Spallart Rupert Bauer

10.1166/mex.2011.1039

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Citations (1)

Ion–molecule reactions in gaseous methane + pentane mixtures

Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases (1983)

Michael Neumann‐Spallart

The reactions of CX+5 and C2X+5(X = H, D) with n-C5D12 and n-C5H12 have been studied. The reactant ions have been generated from CD4 and CH4 by 60CO γ-rays and electron impact in an ion-cyclotron-resonance apparatus at 10 and 10–4 Torr, respectively. The relative extent of fragmentation reactions of the pentonium ion has been measured. The transferred proton (deuteron) is partially retained in the fragment alkyl ions. The results are compared with data obtained for the hydrogen + n-pentane system and a possible reaction mechanism is deduced. Subsequent ion–molecule and neutralization reactions are discussed.

Pentane

Fragmentation

Ion cyclotron resonance

Polyatomic ion

10.1039/f19837901017

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Ruthenium Dioxide Electrodes as Suitable Anodes for Water Photolysis

Helvetica Chimica Acta (1980)

Michael Neumann‐Spallart K. Kalyanasundaram Carole Grätzel Michaël Grätzel

Abstract This paper presents a cell system in which a photoinduced redox reaction occurs in the cathodic compartment which is coupled to a RuO 2 ‐anode. The light induced oxidation of the ruthenium complex Ru (bipy) by peroxodisulfate is used to illustrate that even under diffuse room light irradiation the photopotentials developed at the Pt‐cathode are sufficient to afford water oxidation in the anode compartment. The oxygen produced at the RuO 2 ‐electrode stands in a stochiometric relation to the current passed through the circuit. Implications for a cell system in which H 2 and O 2 are produced in separate compartments under illumination are discussed.

Stoichiometry

10.1002/hlca.19800630502

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Citations (50)

Photoreactions at the semiconductor/electrolyte interface under diminished field conditions: transient currents and charge collection in pulsed laser irradiated titania electrodes

The Journal of Physical Chemistry (1989)

Michael Neumann‐Spallart Albin Schwarz Gottfried Grabner

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoreactions at the semiconductor/electrolyte interface under diminished field conditions: transient currents and charge collection in pulsed laser irradiated titania electrodesMichael Neumann-Spallart, Albin Schwarz, and Gottfried GrabnerCite this: J. Phys. Chem. 1989, 93, 5, 1984–1987Publication Date (Print):March 1, 1989Publication History Published online1 May 2002Published inissue 1 March 1989https://pubs.acs.org/doi/10.1021/j100342a055https://doi.org/10.1021/j100342a055research-articleACS PublicationsRequest reuse permissionsArticle Views53Altmetric-Citations3LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts

Transient (computer programming)

Editorial board

10.1021/j100342a055

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Citations (5)