Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Augustinas, Galeckas"'
Autor:
Ylva K. Hommedal, Ymir K. Frodason, Augustinas Galeckas, Lasse Vines, Klaus Magnus H. Johansen
Publikováno v:
APL Materials, Vol 12, Iss 2, Pp 021109-021109-6 (2024)
Zn-related defects in β-Ga2O3 were studied using photoluminescence (PL) spectroscopy combined with hybrid functional calculations and secondary ion mass spectrometry. We have in-diffused Zn by heat treatments of β-Ga2O3 in Zn vapor to promote the f
Externí odkaz:
https://doaj.org/article/a74cbd02753743e691941908bf9cc982
Autor:
Robert Karsthof, Ymir Kalmann Frodason, Augustinas Galeckas, Philip Michael Weiser, Vitaly Zviagin, Marius Grundmann
Publikováno v:
Advanced Photonics Research, Vol 3, Iss 11, Pp n/a-n/a (2022)
Nickel oxide is a versatile p‐type semiconducting oxide with many applications in optoelectronic devices, but high doping concentrations are often required to achieve necessary electrical conductivity. In contrast to many other transparent oxide se
Externí odkaz:
https://doaj.org/article/00576e54c122425ca969021a21eb5686
Autor:
Sayed Faraj, Marianne Etzelmüller Bathen, Augustinas Galeckas, Andreas Myrold, Ingar Stene-Johansen, Øystein Kalsnes Jørstad, Morten Carstens Moe
Publikováno v:
American Journal of Ophthalmology Case Reports, Vol 27, Iss , Pp 101596- (2022)
This paper presents retinal injuries in 10 eyes of seven teenagers who had been playing with a handheld laser. They reported different degrees of visual symptoms in the form of central scotomas. Clinical examination revealed light burns in the macula
Externí odkaz:
https://doaj.org/article/eb112903bef54246983548d57e62af55
Ion implantation is an excellent method to introduce defects into semiconductors, extending their functionalities in a controllable way. Herein, we investigated an option to use crystallographically aligned implants as an additional route to control
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4163303c339a63157b7e7d15312acaa3
http://hdl.handle.net/10852/98744
http://hdl.handle.net/10852/98744
Autor:
Xiaolan Kang, Chrysanthi Berberidou, Augustinas Galeckas, Calliope Bazioti, Einar Sagstuen, Truls Norby, Ioannis Poulios, Athanasios Chatzitakis
Publikováno v:
Catalysts, Vol 11, Iss 2, p 228 (2021)
Defect-engineering of TiO2 can have a major impact on its photocatalytic properties for the degradation of persisting and non-biodegradable pollutants. Herein, a series of intrinsic and extrinsic defects are induced by post annealing of crystalline T
Externí odkaz:
https://doaj.org/article/39ee9c99823748ac909dc58b5753ea88
Publikováno v:
Nanomaterials, Vol 11, Iss 2, p 452 (2021)
The crystal quality and surface states are two major factors that determine optical properties of ZnO nanoparticles (NPs) synthesized through nonaqueous sol–gel routes, and both are strongly dependent on the growth conditions. In this work, we inve
Externí odkaz:
https://doaj.org/article/a1ef7266d0ae42cdb2f92a8324b01e53
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 7, Iss 1, Pp 1075-1085 (2016)
A hybrid material consisting of nonfunctionalized multiwall carbon nanotubes (MWCNTs) and cubic-phase HfO2 nanoparticles (NPs) with an average diameter of 2.6 nm has been synthesized. Free standing HfO2 NPs present unusual optical properties and a st
Externí odkaz:
https://doaj.org/article/7ca1e12b3c6e4ecda26587bff57d4b56
Autor:
Augustinas Galeckas, Robert Karsthof, Kingsly Gana, Angela Kok, Marianne Etzelmüller Bathen, Lasse Vines, Andrej Kuznetsov
Publikováno v:
Physica Status Solidi A, 220 (10)
Physica Status Solidi (a) applications and materials science
Physica Status Solidi (a) applications and materials science
The carrier lifetime control over 150 μm thick 4H-SiC epitaxial layers via thermal generation and annihilation of carbon vacancy (VC) related Z1/2 lifetime killer sites is reported. The defect developments upon typical SiC processing steps, such as
Autor:
Torunn Kjeldstad, Annett Thøgersen, Marit Stange, Ingvild Thue Jensen, Eduard Monakhov, Augustinas Galeckas
Publikováno v:
Nanomaterials, Vol 9, Iss 8, p 1106 (2019)
We present a study of the surface effects and optical properties of the self-assembled nanostructures comprised of vertically aligned 5 nm-diameter Al nanowires embedded in an amorphous Si matrix (a-Si:Al). The controlled (partial) removal of Al nano
Externí odkaz:
https://doaj.org/article/28867f756edd421bad55d838f6ad8c9e
Autor:
Xiaolan Kang, Vilde Mari Reinertsen, Kevin Gregor Both, Augustinas Galeckas, Thomas Aarholt, Øystein Prytz, Truls Norby, Dragos Neagu, Athanasios Chatzitakis
There is a growing need to control and tune nanoparticles (NPs) to increase their stability and effectiveness, especially for photo‐ and electrochemical energy conversion applications. Exsolved particles are well anchored and can be re‐shaped wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74fba76c5e3c13103faaec618b35b721
http://hdl.handle.net/10852/95022
http://hdl.handle.net/10852/95022