Zobrazeno 1 - 10
of 272
pro vyhledávání: '"Kaupo Kukli"'
Autor:
Jaana Lilloja, Oluwaseun E. Fetuga, Elo Kibena‐Põldsepp, Arvo Kikas, Maike Käärik, Jaan Aruväli, Jekaterina Kozlova, Alexey Treshchalov, Vambola Kisand, Jaan Leis, Kaupo Kukli, Kaido Tammeveski
Publikováno v:
ChemElectroChem, Vol 11, Iss 19, Pp n/a-n/a (2024)
Abstract In this work, iron‐ and nitrogen‐doped carbide‐derived carbon and carbon nanotube (CDC/CNT) composites are prepared and used as oxygen reduction reaction (ORR) electrocatalysts in acidic conditions. Three different approaches are taken
Externí odkaz:
https://doaj.org/article/18271e25dc6643ebacde5713e0bd655e
Publikováno v:
Crystals, Vol 14, Iss 10, p 909 (2024)
Polycrystalline SnO2-HfO2 nanolaminated thin films were grown by atomic layer deposition (ALD) on SiO2/Si(100) and TiN substrates at 300 °C. The samples, when evaluated electrically, exhibited bipolar resistive switching. The sample object with a st
Externí odkaz:
https://doaj.org/article/ddacfbae49524c88ac45e671872b4c83
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 14, Iss 1, Pp 1085-1092 (2023)
Polycrystalline SnO2 thin films were grown by atomic layer deposition (ALD) on SiO2/Si(100) substrates from SnI4 and O3. Suitable evaporation temperatures for the SnI4 precursor as well as the relationship between growth per cycle and substrate tempe
Externí odkaz:
https://doaj.org/article/9f52b15055c64f73a547458607c2e43d
Autor:
Madis Lüsi, Heiki Erikson, Maike Käärik, Helle-Mai Piirsoo, Jaan Aruväli, Arvo Kikas, Vambola Kisand, Jaan Leis, Kaupo Kukli, Kaido Tammeveski
Publikováno v:
Nanomaterials, Vol 14, Iss 12, p 994 (2024)
We explored two methods for synthesizing Pd nanoparticles using three different carbide-derived carbon (CDC) support materials, one of which was nitrogen-doped. These materials were studied for oxygen reduction reaction (ORR) in 0.1 M KOH solution, a
Externí odkaz:
https://doaj.org/article/9a920a06b51b4754a92c19de56bc242d
Autor:
Yogesh Kumar, Elo Kibena-Põldsepp, Srinu Akula, Jekaterina Kozlova, Arvo Kikas, Jaan Aruväli, Vambola Kisand, Kaupo Kukli, Kaido Tammeveski
Publikováno v:
Electrochemistry Communications, Vol 157, Iss , Pp 107623- (2023)
The focus in the development of catalysts doped with transition metals aims to replace platinum group metal catalysts in fuel cells. However, these non-precious metal catalysts exhibit limited performance in acidic environment for the oxygen reductio
Externí odkaz:
https://doaj.org/article/45759659aa424913ba0d0c7a927c13ed
Autor:
Shivasubramanian Gopinath, Andrei Bleahu, Tauno Kahro, Aravind Simon John Francis Rajeswary, Ravi Kumar, Kaupo Kukli, Aile Tamm, Joseph Rosen, Vijayakumar Anand
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract Fresnel incoherent correlation holography (FINCH) is a well-established incoherent digital holography technique. In FINCH, light from an object point splits into two, differently modulated using two diffractive lenses with different focal di
Externí odkaz:
https://doaj.org/article/e27a178ca1864ceeb146968d4c89c8b2
Autor:
Molong Han, Daniel Smith, Tauno Kahro, Dominyka Stonytė, Aarne Kasikov, Darius Gailevičius, Vipin Tiwari, Agnes Pristy Ignatius Xavier, Shivasubramanian Gopinath, Soon Hock Ng, Aravind Simon John Francis Rajeswary, Aile Tamm, Kaupo Kukli, Keith Bambery, Jitraporn Vongsvivut, Saulius Juodkazis, Vijayakumar Anand
Publikováno v:
Micromachines, Vol 15, Iss 4, p 537 (2024)
Axial resolution is one of the most important characteristics of a microscope. In all microscopes, a high axial resolution is desired in order to discriminate information efficiently along the longitudinal direction. However, when studying thick samp
Externí odkaz:
https://doaj.org/article/8dfbdf383b5946e7ae148d7aa81db740
Autor:
Andrei-ioan Bleahu, Shivasubramanian Gopinath, Tauno Kahro, Soon Hock Ng, Kaupo Kukli, Aile Tamm, Saulius Juodkazis, Joseph Rosen, Vijayakumar Anand
Publikováno v:
Results in Physics, Vol 52, Iss , Pp 106839- (2023)
Manufacturing diffractive lenses with a high Numerical Aperture (NA) is a challenging task due to limitations in lithography methods and the inverse relation between the width and the radius of the zones. With low-resolution lithography techniques su
Externí odkaz:
https://doaj.org/article/1ec85574b5574def90a807db5a2dcd70
Autor:
Vijayakumar Anand, Amudhavel Jayavel, Viktor Palm, Shivasubramanian Gopinath, Andrei Bleahu, Aravind Simon John Francis Rajeswary, Kaupo Kukli, Vinoth Balasubramani, Daniel Smith, Soon Hock Ng, Saulius Juodkazis
Publikováno v:
Engineering Proceedings, Vol 34, Iss 1, p 29 (2023)
The CIPHR group, Institute of Physics, University of Tartu, Estonia, and Optical Sciences Center, Swinburne University of Technology, Australia, jointly organized the interdisciplinary online conference “Holography Meets Advanced Manufacturing” d
Externí odkaz:
https://doaj.org/article/dcc096471e0545e8adc2726fc7955bb9
Autor:
Vijayakumar Anand, Amudhavel Jayavel, Viktor Palm, Shivasubramanian Gopinath, Andrei Bleahu, Aravind Simon John Francis Rajeswary, Kaupo Kukli, Vinoth Balasubramani, Ravi Kumar, Daniel Smith, Soon Hock Ng, Saulius Juodkazis
Publikováno v:
Engineering Proceedings, Vol 34, Iss 1, p 28 (2023)
In submitting conference proceedings to Engineering Proceedings, the editors of the proceedings certify to the publisher that all papers published in this volume have been subjected to peer review [...]
Externí odkaz:
https://doaj.org/article/2474023c6efc4b8490a05b26f71a13f7