Projects / Programmes source: ARIS

Vacuum science and opto electronics

Research activity

Code Science Field Subfield
2.09.00  Engineering sciences and technologies  Electronic components and technologies   
2.15.00  Engineering sciences and technologies  Metrology   

Code Science Field
T150  Technological sciences  Material technology 
P180  Natural sciences and mathematics  Metrology, physical instrumentation 
P240  Natural sciences and mathematics  Gases, fluid dynamics, plasmas 
Evaluation (rules)
source: COBISS
Researchers (8)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  05673  PhD Bojan Erjavec  Electronic components and technologies  Researcher  2004 - 2008 
2.  09846  PhD Lidija Irmančnik-Belič  Chemistry  Researcher  2004 - 2008 
3.  21772  PhD Milorad Milun  Materials science and technology  Researcher  2004 - 2008 
4.  03066  PhD Vincenc Nemanič  Electronic components and technologies  Researcher  2004 - 2008 
5.  04254  PhD Janez Šetina  Electronic components and technologies  Head  2004 - 2008 
6.  25498  PhD Barbara Šetina Batič  Materials science and technology  Junior researcher  2005 - 2008 
7.  20335  PhD Bojan Zajec  Civil engineering  Researcher  2004 - 2008 
8.  19313  PhD Vida Žigman  Physics  Researcher  2004 - 2008 
Organisations (3)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  18 
2.  0206  Institute of Metals and Technology  Ljubljana  5051622000 
3.  1540  University of Nova Gorica  Nova Gorica  5920884000 
Significance for science
The scientific quality and importance of the results of our research can be best evaluated according to official ARRS methodology (Regulation on indicators and measures of scientific and professional success) Bibliographic data were taken from COBISS data base. According to ARRS methodology the P2-0056 group earned in the period from 2004 to 2008 1048.32 points for indicator (Z1+Z2, scientific indicators) and 185.2 points for indicator S (relevance for applications), giving the total number of points 1233.51. The extent of the financing was 2 FTE, so the normalized number of points was 617/FTE. The group received 258 citations of its own publications in the period from 2004 to 2008. We estimate that these results are at least on the average level of other program groups, thus fully justifying the extent of financing of 2 FTE. Our list of publications in SCI journals contains 32 articles. 19 articles were published in the first quarter group of journals with highest impact factor in the related field, 7 in the second quarter, 4 in the third quarter and only 2 in the last quarter. Such distribution with 59.4% of publications in the first quarter group of SCI journals in related fields proves a very high level and originality of our research work. Three papers were published in the journals with IF)4 (maximal IF=4.308), 5 in journals with IF)3 and 6 in journals with IF)2. Our original contributions to the science were in the following fields: (1) reduction of hydrogen outgassing from stainless steel in ultrahigh (UHV) and extreme high vacuum (XHV); (2) electron emission properties of new inorganic nanomaterials from W, Mo, Nb and S, which were synthesized at IJS and studies of their potential use in flat panel displays and other field emission electron sources; (3) characterisation of new materials for vacuum optoelectronics based on intermetalic compounds of chemically active alkali metals Li, Na, K, Cs, Ba and Ca with Ga, In or Sn; (4) studies of vacuum problems and lifetime of hermetically sealed vacuum devices like optoelectron tubes (vacuum tightness of metal to glass seals, permeation of helium through different glasses);(5) modelling of transport properties of charged particles in weakly ionised plasmas; and (6) scientific metrology in the region of low pressures (vacuum) with special interest in UHV and XHV measurements, studies of the uncertainty of cold cathode ionisation vacuum gauges, partial pressure measurements, primary standards for vacuum and gas flow and validation of measurement methods for geter characterization.
Significance for the country
Our research program was focused on some basic aspects of vacuum science, which is multidisciplinary science with applications in modern industrial processes like (microelectronics and semiconductor fabrication, nanotechnologies, surface engineering, pharmaceutical industry etc) and in numerous research fields, where vacuum environment is an indispensable prerequisite (electron microscopy and other vacuum analytical methods, surface science, particle accelerators and synchrotron light sources, space research etc). A good understanding of relevant vacuum issues is crucial for new developments in these fields as well as in industrial development of new and better products. The group is of a great importance for Slovenian national metrological infrastructure, due to its accredited laboratory for pressure measurements which is on the top hierarchical level in Slovenia. Our reference instruments were recognized as Slovenian national standards for vacuum and pressure by Metrology Institute of the Republic of Slovenia MIRS). The group can assure traceability of physical quantity pressure to the international level and with calibrations transfers this traceability to lower hierarchical levels in Slovenian industry and other economic area. The group also provides expert knowledge about vacuum and pressure measurements for Slovenian industry. Research collaboration with Lotrič Laboratory can be mentioned as an example. The laboratory’s best calibration and measurement capabilities (CMC) were published as an appendix C to international agreement MRA at BIPM "Bureau International des Poids et Mesures" in 2005. Therefore our calibration certificates are equivalent to certificates of national metrology institutes of almost all developed countries of the world. International cooperation and publications in renowned journals contribute to recognition of Slovenia on international level. The group is very active in development and research related to new materials for opto-electronic components, i.e. special photomultiers. We specialized in research of getter materials that have a decisive effect on a life time of sealed vacuum optoelectronic components. The group cooperates with several foreign partners. Our research in the field of thermonuclear plasmas (project EURARTOM) is in line with leading edge research in Europe. Thermonuclear fusion is one of most promising new energy sources with focused EU investment in (ITER, Cadarache). On the other hand the results of research in fusion field related to interaction of plasmas with surfaces find many applications in other modern technologies (thin film deposition, plasma etching and plasma cleaning...) Our group successfully participated in 5th FP project IMPECABLE (Improved photon efficient cathodes with applications in biological luminescence), contract no.: G5RD-CT-2000-00372 (IMT project leader Dr. B. Erjavec). Project also applied for Descartes award for research excellence in 2004 under a new acronym APLOMB (Advanced Photocathode for Luminescence Optimization in Medicine and Biology), and was nominated as one of 8 finalists. Descartes award was conferred on 2 Dec 2004 in Prague. Members of the group are active in foreign international professional associations like AVS (American Vacuum Society), IUVSTA (International Union for Vacuum Science and Technology) etc. We have organized or participated in organizing and program committees of several important international conferences and workshops.
Most important scientific results Final report, complete report on dLib.si
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