Highly efficient 1 μm thick CdTe solar cells with textured TCOs

Nowshad Amin, Takayuki Isaka, Akira Yamada, Makoto Konagai

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

Thickness reduction of CdTe absorption layer down to 1 μm has been achieved by controlling the temperature profile used during the close-spaced sublimation (CSS) growth. Transparent conducting oxides, such as indium tin oxide (ITO) and textured fluorine doped tin oxide (SnO2:F) films have been investigated as transparent electrodes for such 1-μm-thick CdTe absorption layers to increase the incident light confinement and thus to achieve higher conversion efficiency. The contribution in solar cell performance has been found in the case of textured TCOs with optimum haze ratio (roughness). Conversion efficiencies of 10.6% (Voc: 0.75 V, Jsc: 22.02 mA/cm2, FF: 0.64, area: 1 cm2) and 11.2% (Voc: 0.78 V, Jsc: 22.6 mA/cm2, FF: 0.63) have been achieved for only 0.6-μm-thick CdTe absorption layers with SnO2:F-TCO of 11% and 3% of haze ratios, respectively.

Original languageEnglish
Pages (from-to)195-201
Number of pages7
JournalSolar Energy Materials and Solar Cells
Volume67
Issue number1-4
DOIs
Publication statusPublished - Mar 2001
Externally publishedYes

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Tin oxides
Conversion efficiency
Solar cells
Fluorine
Sublimation
Indium
Oxides
Surface roughness
Electrodes
Temperature
stannic oxide
indium tin oxide

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films

Cite this

Highly efficient 1 μm thick CdTe solar cells with textured TCOs. / Amin, Nowshad; Isaka, Takayuki; Yamada, Akira; Konagai, Makoto.

In: Solar Energy Materials and Solar Cells, Vol. 67, No. 1-4, 03.2001, p. 195-201.

Research output: Contribution to journalArticle

Amin, Nowshad ; Isaka, Takayuki ; Yamada, Akira ; Konagai, Makoto. / Highly efficient 1 μm thick CdTe solar cells with textured TCOs. In: Solar Energy Materials and Solar Cells. 2001 ; Vol. 67, No. 1-4. pp. 195-201.
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