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Field emission from W5O14 nanowires
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SYSNO ASEP 0494363 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Field emission from W5O14 nanowires Author(s) Saqib, M. (SI)
Knápek, Alexandr (UPT-D) RID, ORCID, SAI
Jelenc, J. (SI)
Pirker, L. (SI)Number of authors 4 Source Title Recent Trends in Charged Particle Optics and Surface Physics Instrumentation. Proceedings of the 16th International Seminar. - Brno : Institute of Scientific Instruments The Czech Academy of Sciences, 2018 - ISBN 978-80-87441-23-7 Pages s. 34-35 Number of pages 2 s. Publication form Print - P Action Recent Trends in Charged Particle Optics and Surface Physics Instrumentation Event date 04.06.2018 - 08.06.2018 VEvent location Skalský dvůr Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords field emission ; W5O14 nanowires Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering OECD category Nano-materials (production and properties) R&D Projects TE01020118 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000450591400011 Annotation The W5O14 (O/W=2.8) nanowires are metallic oxides with specific resistivity of 25 microOhm/cm and
diameters bellow 100 nm [1]. They were synthesized by iodine transport method using nickel
as a growth promoter and WO3 as source of tungsten and oxygen. The field emission
characteristics of single nanowires [2] and the films composed of these nanowires have been
reported [3]. The emitting current densities up to 6.4 mA/cm2 have been obtained at relatively
low average electric field of about 3 V/Ohm*m. The samples were allowed to emit for more than
100 hours without showing significant decays of the emitting current and without substantial
current oscillations. Here, we present field emission properties of single W5O14 nanowires
exposed to two ranges of average electric fields (0.7–0.85 V/Ohm*m and up to 37–39 V/Ohm*m.Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2019
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