Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Kathriin Utt"'
Autor:
Urmas Joost, Andris Šutka, Meeri Visnapuu, Aile Tamm, Meeri Lembinen, Mikk Antsov, Kathriin Utt, Krisjanis Smits, Ergo Nõmmiste, Vambola Kisand
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 8, Iss 1, Pp 229-236 (2017)
Colorimetric gas sensing is demonstrated by thin films based on ultrasmall TiO2 nanoparticles (NPs) on Si substrates. The NPs are bound into the film by p-toluenesulfonic acid (PTSA) and the film is made to absorb volatile organic compounds (VOCs). S
Externí odkaz:
https://doaj.org/article/3ee464b822634c2abedb6eebc3bf5be5
Autor:
Kathriin Utt, Marko Eltermann, Raivo Jaaniso, Leonid Dolgov, Artjom Berholts, Valter Kiisk, Sven Lange
Publikováno v:
Sensors and Actuators B: Chemical. 265:556-564
It is shown that the luminescence of Sm3+ ions, which were doped into anatase nanopowder, is highly sensitive to the presence of oxygen gas. The luminescence was effectively excited through TiO2 band-to-band absorption and exhibited oxygen sensitivit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abf8b8d365316c7d6d87675331110e31
https://doi.org/10.1016/j.snb.2018.03.034
https://doi.org/10.1016/j.snb.2018.03.034
Autor:
Vambola Kisand, Aile Tamm, Mikk Antsov, Kathriin Utt, Meeri Visnapuu, Andris Šutka, Ergo Nõmmiste, Meeri Lembinen, Krisjanis Smits, Urmas Joost
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 8, Iss 1, Pp 229-236 (2017)
Beilstein Journal of Nanotechnology
Beilstein Journal of Nanotechnology
Financial support from the Estonian Research Council (IUT2-25, PUT170, PUT1096, PUT748, PUTJD680), the Estonian Centre of Excellence in Research Projects “Advanced materials and high-technology devices for sustainable energetics, sensorics and nano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2eb3d196c6523c837105829566e0c6e7
https://doaj.org/article/3ee464b822634c2abedb6eebc3bf5be5
https://doaj.org/article/3ee464b822634c2abedb6eebc3bf5be5
Autor:
Martin Timusk, Andris Šutka, Triin Kangur, Kathriin Utt, Māris Knite, Martin Järvekülg, Agnes Kuus
Publikováno v:
Materials & Design, Vol 111, Iss, Pp 80-87 (2016)
A novel method for the preparation of thick silica foam films is reported that combines an alkoxide-based hydrolytic sol–gel process and in situ catalytic decomposition of hydrogen peroxide on a catalyst-coated support. A hydrogen peroxide/nitric a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71b932fde6d57d5db7e3309b73e3ab8d
https://doi.org/10.1016/j.matdes.2016.08.092
https://doi.org/10.1016/j.matdes.2016.08.092
Autor:
Hugo Mändar, Martin Timusk, T. Käämbre, Kathriin Utt, Jörgen Metsik, Madis Umalas, Laurits Puust, Ilmo Sildos, Agnes Kuus, Uno Mäeorg
Publikováno v:
Polymer Degradation and Stability. 126:170-178
Sufficient stability of conductive polymers is crucial for allowing widespread application of these materials. Poly(3,4-ethylenedioxythiophene) (PEDOT) has a relatively high conductivity and transparency among conductive polymers. In this study, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebac2b77bda2d4239417abc707b50682
https://doi.org/10.1016/j.polymdegradstab.2016.02.008
https://doi.org/10.1016/j.polymdegradstab.2016.02.008
Publikováno v:
Optical Materials. 51:24-30
The luminescence properties of Sm3+ in sol–gel-made nanostructural TiO2 were shown to depend on surrounding gas environment. Both the intensity and lifetime of the luminescence increased with increasing oxygen content varied between 0% and 100% in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f07aab6cb97f403d89a461383a1a5d8
https://doi.org/10.1016/j.optmat.2015.11.020
https://doi.org/10.1016/j.optmat.2015.11.020
Autor:
Aile Tamm, Kathriin Utt, Laurits Puust, Jekaterina Kozlova, Valter Kiisk, Ilmo Sildos, Hugo Mändar, Jaan Aarik
Publikováno v:
Thin Solid Films. 583:70-75
Atomic layer deposition based on alternate cycling of ZrCl4, Dy(thd)3 and H2O as precursors was applied for preparation of nanocrystalline ZrO2:Dy thin films. Photoluminescence (PL) properties of Dy3 + in the ZrO2 films were studied at several laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::396dd8af8f2008c703c5f38b69553904
https://doi.org/10.1016/j.tsf.2015.03.041
https://doi.org/10.1016/j.tsf.2015.03.041
Autor:
Kathriin Utt, Deniss Klauson, Ilmo Sildos, Ilona Oja Acik, Natalja Pronina, Inga Gromyko, Olga Volobujeva, Olga Budarnaja, Tatjana Dedova, Marina Krichevskaya
Publikováno v:
Materials Science in Semiconductor Processing. 31:315-324
In this research, ZnO nanostructured layers with various morphology, i.e. nanoneedles, nanorods, pyramid shaped ZnO crystals, and hierarchical structures of ZnO deposited on nanorods and pyramid shaped crystals, were synthesised by pneumatic spray py
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf445ae29daaa2ca9249e25ec4a93de2
https://doi.org/10.1016/j.mssp.2014.12.012
https://doi.org/10.1016/j.mssp.2014.12.012
Autor:
Malle Krunks, Kathriin Utt, Inga Gromyko, Maarja Grossberg, Tatjana Dedova, Valdek Mikli, Risto Vessart, Tarmo Unt, Ilmo Sildos
Publikováno v:
Crystal Research and Technology. 50:85-92
Here we demonstrate that highly c-axis oriented vertically aligned hexagonal ZnS nanorod-like crystals have been synthesized via a facile and low-cost spray pyrolysis method. ZnS layers were grown onto soda-lime glass (SGL), glasses covered with tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b44cb66503ceba22a14bb12c87faf8ba
https://doi.org/10.1002/crat.201400172
https://doi.org/10.1002/crat.201400172
Autor:
A.A. Chaykin, Marko Part, Mikhail G. Brik, Tanel Tätte, Ilmo Sildos, Kathriin Utt, Valter Kiisk
Publikováno v:
Journal of Luminescence. 152:125-128
Hereby we report a new microstructured luminescent material – Eu-doped yttria-stabilized zirconia (YSZ) microtube – prepared by a special sol–gel route. Transparent, crack-free and brightly luminescent microtubes were obtained after thermal tre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e11061161d6b8a58d9ad060a2c143b5
https://doi.org/10.1016/j.jlumin.2013.10.056
https://doi.org/10.1016/j.jlumin.2013.10.056