Login / Signup

Ultrafast and Chemically Stable Transfer of Au Nanomembrane Using a Water-Soluble NaCl Sacrificial Layer for Flexible Solar Cells.

Wan Jae DongSungjoo KimJae Yong ParkHak Ki YuJong-Lam Lee
Published in: ACS applied materials & interfaces (2019)
Large-scale industrial application of flexible device has called for development of transfer methods that deliver high yield and stability. Here, we show an ultrafast and chemically stable transfer method by using a water-soluble NaCl sacrificial layer. Extremely thin (10 nm) and large-area (4 in. wafer) free-standing Au nanomembranes (NMs) prepared on silicon substrate were successfully transferred to flexible PDMS substrate by dissolving the NaCl sacrificial layer. This transfer method enables highly transparent and electrically conductive Au NMs on PDMS substrate. To transfer a multilayered optoelectronic device, we fabricated flexible hydrogenated amorphous silicon (a-Si:H) solar cell on a glass substrate and transferred it to a PDMS substrate. There was no degradation of the electrical characteristic of the solar cell after the transfer. This approach enables the integration of high-temperature-processed a-Si:H solar cell onto low-temperature tolerant flexible polymer substrate without chemical contamination or damage.
Keyphrases
  • water soluble
  • single cell
  • electron transfer
  • cell therapy
  • reduced graphene oxide
  • amino acid
  • solid state
  • high temperature
  • risk assessment
  • stem cells
  • drinking water
  • wastewater treatment
  • health risk
  • ionic liquid