Applied Physics Letters
Feedback | Help | Exit
Applied Physics Letters
Search:
   
 
 
 
Previous Article
Mg doping and its effect on the semipolar GaN(11[overline 2]2) growth kinetics
We report the effect of Mg doping on the growth kinetics of semipolar GaN(112) synthesized by plasma-assisted molecular-beam epitaxy. Mg tends to segregate on the surface, inhibiting the formation of ...
Next Article
Mg-based metallic glass/titanium interpenetrating phase composite with high mechanical performance
We report an Mg-based metallic glass/titanium interpenetrating phase composite in which constituent phases form a homogeneously interconnected network. The porous titanium constrains shear bands propa...

Mg doping of thermochromic VO2 films enhances the optical transmittance and decreases the metal-insulator transition temperature

Appl. Phys. Lett. 95, 171909 (2009); doi:10.1063/1.3229949

Published 29 October 2009

You are not logged in to this journal. Log in

N. R. Mlyuka, G. A. Niklasson, and C. G. Granqvist
Department of Engineering Sciences, The Ångström Laboratory, Uppsala University, P.O. Box 534, SE-75121 Uppsala, Sweden
Thermochromic films of MgxV1−xO2 were made by reactive dc magnetron sputtering onto heated glass. The metal-insulator transition temperature decreased by ~3  K/at. %Mg, while the optical transmittance increased concomitantly. Specifically, the transmittance of visible light and of solar radiation was enhanced by ~10% when the Mg content was ~7  at. %. Our results point at the usefulness of these films for energy efficient fenestration. ©2009 American Institute of Physics
History: Received 18 April 2009; accepted 26 August 2009; published 29 October 2009
Permalink: http://link.aip.org/link/?APPLAB/95/171909/1
BUY THIS ARTICLE   (US$24)
Download HTML Download Sectioned HTML Download PDF (355 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 78.20.Nv
    Thermooptical and photothermal effects (bulk materials/thin films)
  • 81.15.Cd
    Deposition by sputtering
  • 71.30.+h
    Metal-insulator transitions and other electronic transitions
  • 78.66.Nk
    Optical properties of insulators (thin films)
  • 61.72.up
    Doping and impurity implantation in other materials
  • YEAR: 2009

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (28)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. UNEP, Buildings and Climate Change: Status, Challenges, and Opportunities (United Nations Environment Programme, Paris, 2007).
  2. Large-Area Chromogenics: Materials and Devices for Transmittance Control, edited by C. M. Lampert and C. G. Granqvist (SPIE, Bellingham, 1990)
  3. C. G. Granqvist, Crit. Rev. Solid State Mater. Sci. 16, 291 (1990).
  4. C. G. Granqvist, P. C. Lansåker, N. R. Mlyuka, G. A. Niklasson, and E. Avendaño, “Progress in Chromogenics: New Results for Electrochromic and Thermochromic Materials and Devices,” Sol. Energy Mater. Sol. Cells (to be published).
  5. C. G. Granqvist, Sol. Energy Mater. Sol. Cells 91, 1529 (2007).
  6. F. J. Morin, Phys. Rev. Lett. 3, 34 (1959).
  7. M. M. Qazilbash, M. Brehm, B. -G. Chae, P. -C. Ho, G. O. Andreev, B. -J. Kim, S. J. Yun, A. V. Balatsky, M. B. Maple, F. Keilmann, H. -T. Kim, and D. N. Basov, Science 318, 1750 (2007).
  8. B. -J. Kim, Y. W. Lee, S. Choi, J. -W. Lim, S. J. Yun, H. -T. Kim, T. -J. Shin, and H. -S. Yun, Phys. Rev. B 77, 235401 (2008).
  9. G. Xu, C. -M. Huang, M. Tazawa, P. Jin, D. -M. Chen, and L. Miao, Appl. Phys. Lett. 93, 061911 (2008).
  10. J. B. Goodenough, J. Solid State Chem. 3, 490 (1971).
  11. C. B. Greenberg, Thin Solid Films 110, 73 (1983).
  12. S. M. Babulanam, T. S. Eriksson, G. A. Niklasson, and C. G. Granqvist, Sol. Energy Mater. 16, 347 (1987).
  13. C. Batista, V. Teixeira, and J. Carneiro, J. Nano. Res. 2, 21 (2008).
  14. R. Binions, G. Hyett, C. Piccirillo, and I. P. Parkin, J. Mater. Chem. 17, 4652 (2007)
    15. C. Piccirillo, R. Binions, and I. P. Parkin, Thin Solid Films 516, 1992 (2008).
  15. D. Vernardou, M. E. Pemble, and D. W. Sheel, Chem. Vap. Deposition 13, 158 (2007).
  16. B. G. Chae, H. T. Kim, and S. J. Yun, Electrochem. Solid-State Lett. 11, D53 (2008).
  17. G. Wyszecki and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data and Formulae, 2nd ed. (Wiley, New York, 2000).
  18. ASTM G173–03 Standard Tables of Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on a 37° Tilted Surface, Annual Book of ASTM Standards, Vol. 14.04, American Society for Testing and Materials, Philadelphia, PA, USA, http://rredc.nrel.gov/solar/spectra/am1.5.
  19. Our results on WxV1−xO2 films will be presented separately together with data for other dopants. tauc falls off by ~28  K/at. %W in bulk WxV1−xO2 crystals (Ref. 9), whereas the decrease typically is slower in films. Earlier work [M. A. Sobhan, R. T. Kivaisi, B. Stjerna, and C. G. Granqvist, Sol. Energy Mater. Sol. Cells 44, 451 (1996)] on films deposited onto substrates at 400 °C, and hence likely to be less crystalline, gave a tauc drop of ~8  K/at. %W.
  20. A. Akroune, J. Claverie, A. Tazairt, G. Villeneuve, and A. Casalot, Phys. Status Solidi A 89, 271 (1985). This paper shows data for well characterized MgxV1−xO2−2xF2x crystals and demonstrates that a monoclinic structure prevails at low tau and x; the drop of tauc is ~6  K/at. %Mg for x<0.035.
  21. M. Mayer, AIP Conf. Proc. 475, 541 (1999)
  22. N. R. Mlyuka, G. A. Niklasson, and C. G. Granqvist, Sol. Energy Mater. Sol. Cells 93, 1685 (2009)
    23. Phys. Status Solidi A206, 2155 (2009).
  23. E. Avendaño, A. Azens, G. A. Niklasson, and C. G. Granqvist, Sol. Energy Mater. Sol. Cells 84, 337 (2004).
  24. A. Ohtomo, M. Kawasaki, T. Koida, K. Masubuchi, H. Koinuma, Y. Sakurai, Y. Yoshida, T. Yasuda, and Y. Segawa, Appl. Phys. Lett. 72, 2466 (1998).
  25. Z. Ji, Y. Song, Y. Xiang, K. Liu, C. Wang, and Z. Ye, J. Cryst. Growth 265, 537 (2004).
  26. G. -H. Ning, X. -P. Zhao, and J. Li, Opt. Mater. 27, 1 (2004).
  27. B. Amrani, R. Ahmed, and F. El Haj Hassan, Comput. Mater. Sci. 40, 66 (2007).
  28. JCPDS Card No. 43–1051.
  29. JCPDS Card No. 81–2392.

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics