Tetrahedral chalcopyrite quantum dots for solar-cell applications

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Chalcopyrite structures are candidates for efficient intermediate-band solar cells in thin-film technology. Here, we examine a material combination of CuInSe2 dots embedded in CuGaS2 matrix and show that epitaxial growth leads to distinctive tetrahedral nanostructures. Our model calculations provide us with the optimal nanodot size to reach the maximum efficiency-in principle up to 61%. The optimal quantum dot satisfies the known physical constraints, and it is in excellent qualitative agreement with our grown samples. (C) 2011 American Institute of Physics. [doi:10.1063/1.3640225]

Detaljer

Författare
  • Juho Ojajarvi
  • Esa Rasanen
  • Sascha Sadewasser
  • Sebastian Lehmann
  • Philipp Wagner
  • Martha Ch. Lux-Steiner
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Den kondenserade materiens fysik
Originalspråkengelska
Artikelnummer3640225
TidskriftApplied Physics Letters
Volym99
Utgåva nummer11
StatusPublished - 2011
PublikationskategoriForskning
Peer review utfördJa