| title: | Investigation of interaction between low temperature gas discharge plasma and solid |
|---|---|
| reg no: | SF0182747s06 |
| project type: | targeted financing |
| subject: |
1.3. Physics 2.2. Materials Science |
| status: | accepted |
| institution: | University of Tartu |
| head of project: | Matti Laan |
| duration: | 01.01.2006 - 31.12.2011 |
| description: | Investigation is carried out in two different directions. 1) Conductance mechanism and electron emission of nanometer thickness dielectric layers in gas medium. The conductance mechanism of metal-dielectric layers is determined using methods of surface analysis and varying dielectric materials and manufacturing technology. The photo emission of metal electrodes covered with dielectric layers is studied as a function of applied electric field strength and wavelength of radiation. The correlation between conductance and emissivity is determined. The aim of the investigation is to find out the influence of emissivity of electrodes to processes of ionization in gas discharge plasmas. 2) Development of spectroscopic method of plasma diagnostics. The intensity distribution of emission spectra is measured as a function of gas density and applied electric field strength using non self sustaining discharge for gas excitation. The aim of the study is to find the relationship between electric field and radiation that could be used for field strength estimations in gas discharge plasmas. Measurements are planned for different gases and mixtures of gases of practical interest. Results of investigation can be applied for development of plasma technologies and devices based on gas discharge plasmas. |
| project group | ||||
|---|---|---|---|---|
| no | name | institution | position | |
| 1. | Märt Aints | Tartu University, Faculty of Physics and Chemistry | Senior researcher | |
| 2. | Ants Haljaste | Tartu University, Faculty of Physics and Chemistry | senior researcher | |
| 3. | Matti Laan | Tartu University, Faculty of Physics and Chemistry | Associate professor | |
| 4. | Peeter Paris | Tartu University, Faculty of Physics and Chemistry | Reseach fellow | |
| 5. | Toomas Plank | Tartu University, Faculty of Physics and Chemistry | lecturer | |