Influence of the local absorber layer thickness on the performance of ZnO nanorod solar cells

Abdelhak Belaidi, Thomas Dittrich, David Kieven, Julian Tornow, Klaus Schwarzburg, Martha Lux-Steiner

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Abstract

The local absorber layer thickness (dlocal) of solar cells with extremely thin absorber was changed between 10 nm and 70 nm. As a model system, ZnO nanorod arrays (electron conductor) with fixed internal surface area coated with In2S3 (absorber) and impregnated with CuSCN (transparent hole conductor) were applied. The performance of the small area solar cells depended critically on dlocal. The highest short circuit current density was reached for the lowest dlocal. In contrast, the highest open circuit voltage was obtained for the highest dlocal. A maximum energy conversion efficiency of 3.4% at AM1.5 was achieved. Limiting factors are discussed. ZnO nanorods and current-voltage characteristics of ETA-solar cells with various local absorber thicknesses.

Original languageEnglish
Pages (from-to)172-174
Number of pages3
JournalPhysica Status Solidi - Rapid Research Letters
Volume2
Issue number4
DOIs
Publication statusPublished - Aug 2008
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

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