Formation of the charge selective contact in solar cells with extremely thin absorber based on ZnO-nanorod/ In2 S3 /CuSCN

T. Dittrich, D. Kieven, Abdelhak Belaidi, M. Rusu, J. Tornow, K. Schwarzburg, M. Ch Lux-Steiner

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Annealed and not-annealed solar cells with extremely thin absorber based on ZnO-nanorod / In2 S3 /CuSCN structures have been compared. Significantly higher external quantum efficiencies have been recorded on annealed devices. The temperature dependent current-voltage characteristics in the dark and under illumination were analyzed in detail. The short-circuit current density increased with the temperature and depended on the light intensity by a power law with a power coefficient of 0.85 that was independent of the annealing or measurement temperature. The temperature dependence of the ideality factor dominated the temperature dependencies of the diode saturation current density and of the open circuit voltage. The activation energies increased strongly after annealing. We propose that the limiting charge selective contact is driven away from the highly defective In2 S 3 /CuSCN interface into the In2 S3 layer due to stimulated by the annealing Cu diffusion.

Original languageEnglish
Article number034509
JournalJournal of Applied Physics
Volume105
Issue number3
DOIs
Publication statusPublished - 2009
Externally publishedYes

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nanorods
absorbers
solar cells
annealing
current density
short circuit currents
open circuit voltage
luminous intensity
temperature
temperature measurement
quantum efficiency
illumination
diodes
activation energy
saturation
temperature dependence
electric potential
coefficients

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Formation of the charge selective contact in solar cells with extremely thin absorber based on ZnO-nanorod/ In2 S3 /CuSCN. / Dittrich, T.; Kieven, D.; Belaidi, Abdelhak; Rusu, M.; Tornow, J.; Schwarzburg, K.; Lux-Steiner, M. Ch.

In: Journal of Applied Physics, Vol. 105, No. 3, 034509, 2009.

Research output: Contribution to journalArticle

Dittrich, T. ; Kieven, D. ; Belaidi, Abdelhak ; Rusu, M. ; Tornow, J. ; Schwarzburg, K. ; Lux-Steiner, M. Ch. / Formation of the charge selective contact in solar cells with extremely thin absorber based on ZnO-nanorod/ In2 S3 /CuSCN. In: Journal of Applied Physics. 2009 ; Vol. 105, No. 3.
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