Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Richard Karmhag"'
Autor:
Emma Jonson, Greger Gustavsson, C. G. Granqvist, Richard Karmhag, Laszlo B. Kish, Peter Georén, Gunnar A. Niklasson, Sara Green, Janusz Smulko, Andris Azens, Roser Marsal, Zareh Topalian, Arne Roos
Publikováno v:
Thin Solid Films. 516:5921-5926
We introduce electrochromic (EC) technology for modulating the transmittance of visible light and solar radiation in window apertures, with focus on recent work on foil-type devices embodying sputter deposited WO3 and NiO films joined by a polymer el
Autor:
Torbjörn Lindgren, Sten-Eric Lindquist, Richard Karmhag, Claes-Göran Granqvist, Gemma Romualdo Torres, J. Ederth
Publikováno v:
Thin Solid Films. 510:6-14
Thin films of indium nitride, InN, were produced by reactive magnetron DC sputtering. By post treatment in dinitrogen, N2, in the temperature range 350–500 °C a set of films gradually going from InN to indium oxide, In2O3 was obtained (due to diox
Autor:
Munkhbayar Buyan, Andris Azens, Claes-Göran Granqvist, Greger Gustavsson, Paul A. Brühwiler, Richard Karmhag
Publikováno v:
International Journal of Industrial Ergonomics. 36:11-16
Tinted helmet visors have found applications in several areas as a means of reducing visual strain under bright conditions. For motorcyclists, new technologies which can rapidly change the level of tinting promise to make such visors more accessible,
Autor:
Lars Berggren, Arne Roos, Richard Karmhag, E. Avendaño, Gunnar A. Niklasson, Greger Gustavsson, Andris Azens, Jonas Backholm, C. G. Granqvist
Publikováno v:
Materials Science and Engineering: B. 119:214-223
This paper covers a number of aspects of a novel flexible electrochromic foil capable of varying its optical transmittance. The foil includes thin films of tungsten oxide and nickel oxide and an intervening polymer electrolyte serving as lamination m
Autor:
E. Avendaño, Gunnar A. Niklasson, Richard Karmhag, Andris Azens, C. G. Granqvist, J. Isidorsson
Publikováno v:
Solid State Ionics. 165:169-173
Reactive DC magnetron sputtering was used to make oxide films based on Ni, NiV 0.08 , NiAl 0.56 , NiMg 0.8 , and NiV 0.08 Mg 0.5 . All of these films were capable of showing electrochromism in KOH. The addition of Al or Mg increased the luminous tran
Publikováno v:
Solid State Ionics. 165:1-5
We report on a new flexible electrochromic foil device with sufficient optical modulation range, dynamics, and durability for practical uses. The device incorporates a film of W oxide made by sputtering in the presence of hydrogen, another film of Ni
Autor:
Richard Karmhag, Gunnar A. Niklasson
Publikováno v:
Surface Science. :324-327
The performance of nanomaterials in specific applications can be greatly affected by a thin oxide layer on the surface. In this paper we put forward a model for the oxidation kinetics of metallic nanoparticles. For very thin oxide coatings on nanopar
Publikováno v:
Journal of Applied Physics. 89:3012-3017
Publikováno v:
Journal of Physics D: Applied Physics. 34:400-406
The alumina matrix of an electrolytically deposited solar absorber coating was etched away leaving nickel nanorods standing on an aluminium support. The oxidation kinetics of the nickel nanorods, with an approximate diameter of 30 nm and a height of
Autor:
Carl G. Ribbing, Lars Stenmark, Richard Karmhag, Geoffrey L. Harding, Maria Brogren, Gunnar A. Niklasson
Publikováno v:
Thin Solid Films. 370:268-277
Intense solar irradiation, radiative cooling to outer space, and internal heat generation determine the equilibrium temperature of a spacecraft. The balance between the solar absorption and thermal emittance of the surface is therefore crucial, in pa