Tetrahedral chalcopyrite quantum dots for solar-cell applications

Juho Ojajarvi; Esa Räsänen; Sascha Sadewasser; Sebastian Lehmann; Philipp Wagner; Martha Ch. Lux-Steiner

doi:10.1063/1.3640225

Tetrahedral chalcopyrite quantum dots for solar-cell applications

Juho Ojajarvi^*
, Esa Räsänen
, Sascha Sadewasser
, Sebastian Lehmann
, Philipp Wagner
, Martha Ch. Lux-Steiner

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

12 Citations (Scopus)

Abstract

Chalcopyrite structures are candidates for efficient intermediate-band solar cells in thin-film technology. Here, we examine a material combination of CuInSe(2) dots embedded in CuGaS(2) 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]

Original language	English
Article number	111907
Number of pages	3
Journal	Applied Physics Letters
Volume	99
Issue number	11
DOIs	https://doi.org/10.1063/1.3640225
Publication status	Published - 12 Sept 2011
Publication type	A1 Journal article-refereed

Funding

We thank David Fuertes Marron for useful discussions and CSC-Finnish IT Center for Science-for the CPU time. This work has been supported by the Fortum Foundation and the Academy of Finland.

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10.1063/1.3640225

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abstract = "Chalcopyrite structures are candidates for efficient intermediate-band solar cells in thin-film technology. Here, we examine a material combination of CuInSe(2) dots embedded in CuGaS(2) 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]",

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AU - Ojajarvi, Juho

AU - Räsänen, Esa

AU - Sadewasser, Sascha

AU - Lehmann, Sebastian

AU - Wagner, Philipp

AU - Lux-Steiner, Martha Ch.

PY - 2011/9/12

Y1 - 2011/9/12

N2 - Chalcopyrite structures are candidates for efficient intermediate-band solar cells in thin-film technology. Here, we examine a material combination of CuInSe(2) dots embedded in CuGaS(2) 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]

AB - Chalcopyrite structures are candidates for efficient intermediate-band solar cells in thin-film technology. Here, we examine a material combination of CuInSe(2) dots embedded in CuGaS(2) 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]

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 11

M1 - 111907

ER -

Tetrahedral chalcopyrite quantum dots for solar-cell applications

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