Analysis of Zn I emission lines observed during a spark discharge in liquid nitrogen for zinc nanosheet synthesis
| Autor: | H. Kabbara, Cédric Noël, Thierry Belmonte, R Pflieger |
|---|---|
| Přispěvatelé: | Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Sonochimie dans les Fluides Complexes (LSFC), Institut de Chimie Séparative de Marcoule (ICSM - UMR 5257), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Electron density Materials science [SPI.PLASMA]Engineering Sciences [physics]/Plasmas Time evolution chemistry.chemical_element Time-resolved optical emission spectroscopy 02 engineering and technology Zinc Liquid nitrogen 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Submerged discharges Spark discharges chemistry 0103 physical sciences Electrode Electron temperature Emission spectrum Atomic physics 0210 nano-technology ComputingMilieux_MISCELLANEOUS Nanosheet |
| Zdroj: | Plasma Sources Science and Technology Plasma Sources Science and Technology, IOP Publishing, 2018, 27 (7), pp.074004. ⟨10.1088/1361-6595/aacee2⟩ Plasma Sources Science and Technology, 2018, 27 (7), pp.074004. ⟨10.1088/1361-6595/aacee2⟩ |
| ISSN: | 1361-6595 0963-0252 |
| DOI: | 10.1088/1361-6595/aacee2 |
| Popis: | High-voltage pulsed discharges of a few milliwatts in liquid nitrogen between two zinc electrodes are investigated by optical emission spectroscopy. The possibility to account by modeling for the time evolution of selected zinc lines that are sufficiently intense gives access to the dynamics of the discharge. The intense background emission at short times (from 50 to 100 ns) is satisfactorily described by Planck's continuum with a temperature of 0.9 eV and an electron density of 1017 cm−3. Later on, when zinc lines start appearing in the spectrum, i.e. beyond 300 ns typically when the background emission drops, the electron density and the electron temperature decrease exponentially (from 5.3 to 3.5 eV at 700 ns and from 4 × 1016 to 1015 cm−3). The modeling of the time evolution of three selected zinc lines at 468.01, 472.22 and 481.05 nm gives a coherent insight of the discharge behavior and structure, especially in terms of species gradient and optical thickness. It is also used to check the reliability of the extracted data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|