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Light trapping patterns in sol-gel TCO coatings for organic solar cells

Light trapping patterns in sol-gel TCO coatings for organic solar cells. Asahi-U glass. Imprint. Hot silver. Imprint. Inverted pyramid structure. Master mold. Imprint. Precursor : Zinc acetate dihydrate + Aluminum nitrate or Gallium nitrate Solvent : Methoxyethanol

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Light trapping patterns in sol-gel TCO coatings for organic solar cells

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  1. Light trapping patterns in sol-gel TCO coatings for organic solar cells Asahi-U glass Imprint Hot silver Imprint Inverted pyramid structure Master mold Imprint

  2. Precursor : Zinc acetate dihydrate + Aluminum nitrate or Gallium nitrate Solvent : Methoxyethanol Stabilizer : Monoethanolamine (MEA) 0.5M solution spin coating 3000rpm, 30s & drying at 350℃ x 10 times Annealing at 600℃ for 1h in air

  3. ZnO:Al ZnO:Ga 1 at% Al 2 at% Ga Annealing Temperature = 600℃ 650℃

  4. 109 1.15 data 40MΩ/□ 1.14 data 108 8MΩ/□ 107 106 105 Reference 32kΩ/□ 104 103 Reference 210Ω/□ Reference (H2 annealed) 110Ω/□ 102 101 ZnO:Ga ZnO:Al

  5. Problem: Weighing dopant precursor Zn(acet)2·2H2O 0.2163g Al(NO3)3·9H2O 0.00375g Methoxyethanol 2ml Difficult to weigh precisely Next week: For precise doping concentration, Zn(acet)2·2H2O 0.2163g 0.005M Al(NO3)3·9H2O solution in Methoxyethanol 2ml

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