Sn-doped CdTe as promising intermediate-band photovoltaic material

Mauricio A. Flores, Eduardo Men�ndez-Proupin, Walter Orellana, Juan L. Peǹa

Resultado de la investigación: Article

13 Citas (Scopus)

Resumen

The formation energies, charge transition levels and quasiparticle defect states of several tin-related impurities are investigated within the DFT + GW formalism. The optical spectrum obtained from the solution of the Bethe-Salpeter equation shows that the absorption strongly increases in the sub-bandgap region after doping, suggesting a two-step photoexcitation process that facilitates transitions from photons with insufficient energy to cause direct transitions from the valence to the conduction band via an intermediate-band. We propose Sn-doped CdTe as a promising candidate for the development of high-efficiency solar cells, which could potentially overcome the Shockley-Queisser limit.

Idioma originalEnglish
Número de artículo035501
PublicaciónJournal of Physics D: Applied Physics
Volumen50
N.º3
DOI
EstadoPublished - 25 ene 2017

Huella dactilar

Tin
Photoexcitation
Electron transitions
Conduction bands
Discrete Fourier transforms
Solar cells
Energy gap
Photons
Doping (additives)
Impurities
Defects
Bethe-Salpeter equation
energy of formation
photoexcitation
optical spectrum
tin
conduction bands
solar cells
formalism
valence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Citar esto

Flores, Mauricio A. ; Men�ndez-Proupin, Eduardo ; Orellana, Walter ; Peǹa, Juan L. / Sn-doped CdTe as promising intermediate-band photovoltaic material. En: Journal of Physics D: Applied Physics. 2017 ; Vol. 50, N.º 3.
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Sn-doped CdTe as promising intermediate-band photovoltaic material. / Flores, Mauricio A.; Men�ndez-Proupin, Eduardo; Orellana, Walter; Peǹa, Juan L.

En: Journal of Physics D: Applied Physics, Vol. 50, N.º 3, 035501, 25.01.2017.

Resultado de la investigación: Article

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T1 - Sn-doped CdTe as promising intermediate-band photovoltaic material

AU - Flores, Mauricio A.

AU - Men�ndez-Proupin, Eduardo

AU - Orellana, Walter

AU - Peǹa, Juan L.

PY - 2017/1/25

Y1 - 2017/1/25

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KW - CdTe

KW - intermediate-band

KW - photovoltaics

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