Comparison of AZO, GZO, and AGZO thin films TCOs applied for a-Si solar cells

Y. C. Lin, T. Y. Chen, L. C. Wang, S. Y. Lien

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

This study prepared aluminum and gallium co-doped zinc oxide (AGZO) thin films using pulsed direct current magnetron sputtering, and studied the electrical properties, transmittance, effects of texturing, and applicability as the front contact for a-Si:H solar cells. Textured ZnO:Al (AZO) and ZnO:Ga (GZO) thin films were also compared with AGZO thin film to evaluate their performance as front contacts. Experimental results show that AGZO films with the highest figure of merit φ TC value (24.64 × 10 -3 ω -1) were obtained at Al and Ga doping concentrations of 0.54 wt and 1.165 wt, respectively. The textured AGZO films used as the front contact in a-Si:H solar cells achieved the following results: V OC = 0.77 V, J SC = 16.5 mA/cm 2, FF 59, and conversion efficiency of 7.53. AZO and GZO films have better electrical properties than AGZO film; however, AGZO film has superior transmittance in the near-infrared (NIR) region and higher J SC, conversion efficiency and external quantum efficiency (EQE) than AZO and GZO films under a similar haze value.

Original languageEnglish
Pages (from-to)H599-H604
JournalJournal of the Electrochemical Society
Volume159
Issue number6
DOIs
Publication statusPublished - 2012 May 28

Fingerprint

Zinc Oxide
Gallium
Zinc oxide
Aluminum
Oxide films
Solar cells
Thin films
Conversion efficiency
Electric properties
Texturing
Quantum efficiency
Magnetron sputtering
Doping (additives)
Infrared radiation

All Science Journal Classification (ASJC) codes

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

Cite this

Lin, Y. C. ; Chen, T. Y. ; Wang, L. C. ; Lien, S. Y. / Comparison of AZO, GZO, and AGZO thin films TCOs applied for a-Si solar cells. In: Journal of the Electrochemical Society. 2012 ; Vol. 159, No. 6. pp. H599-H604.
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Comparison of AZO, GZO, and AGZO thin films TCOs applied for a-Si solar cells. / Lin, Y. C.; Chen, T. Y.; Wang, L. C.; Lien, S. Y.

In: Journal of the Electrochemical Society, Vol. 159, No. 6, 28.05.2012, p. H599-H604.

Research output: Contribution to journalArticle

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