skip to main content

Bandgap widening in thermochromic Mg-doped VO 2 thin films: Quantitative data based on optical absorption

Li, Shu-Yi ; Mlyuka, Nuru R. ; Primetzhofer, Daniel ; Hallén, Anders ; Possnert, Göran ; Niklasson, Gunnar A. ; Granqvist, Claes G.

Applied Physics Letters, 14 October 2013, Vol.103(16) [Periódico revisado por pares]

Texto completo disponível

Citações Citado por
  • Título:
    Bandgap widening in thermochromic Mg-doped VO 2 thin films: Quantitative data based on optical absorption
  • Autor: Li, Shu-Yi ; Mlyuka, Nuru R. ; Primetzhofer, Daniel ; Hallén, Anders ; Possnert, Göran ; Niklasson, Gunnar A. ; Granqvist, Claes G.
  • Assuntos: Structural, Mechanical, Optical, And Thermodynamic Properties Of Advanced Materials
  • É parte de: Applied Physics Letters, 14 October 2013, Vol.103(16)
  • Descrição: Thermochromic Mg-doped VO 2 films were deposited by reactive direct current magnetron sputtering onto heated glass and carbon substrates. Elemental compositions were inferred from Rutherford backscattering. Optical bandgaps were obtained from spectral transmittance and reflectance measurements—from both the film side and the back side of the samples—and ensuing determination of absorption coefficients. The bandgap of Mg-doped films was found to increase by 3.9 ± 0.5 eV per unit of atom ratio Mg/(Mg + V) for 0 < Mg/(Mg + V) < 0.21. The presence of ∼0.45 at. % Si enhanced the bandgap even more.
  • Idioma: Inglês

Buscando em bases de dados remotas. Favor aguardar.