Nano-Scale ZnO Buffer Layer for Inkjet-Printed Polymer Solar Cells

Eom, Seung Hun; Senthilarasu, S.; Yoon, Sung Cheol; Lee, J.; Lee, Soo-Hyoung

Abstract

Zinc oxide (ZnO) was used as a buffer layer in the fabrication of polymer solar cells with the configuration of ITO/PEDOT:PSS/P3HT:PCBM/ZnO/Ag, in which the Ag cathode was prepared by inkjet printing using silver ink. Due to the hydrophobic nature of the P3HT:PCBM active layer surface, the hydrophilic silver ink cannot be coated directly on the top of the P3HT:PCBM layer. To overcome this problem, ZnO particles, prepared in a simple solution method by using polyethylene glycol (PEG) surfactant molecules, were used as a buffer layer between the P3HT:PCBM layer and Ag cathode. The present study discusses and compares the performance of the solar cells with and without the ZnO buffer layer.

Citation

Eom, S. H., Senthilarasu, S., Yoon, S. C., Lee, J., & Lee, S. (2008). Nano-Scale ZnO Buffer Layer for Inkjet-Printed Polymer Solar Cells. Journal of Nanoscience and Nanotechnology, 8(10), 5113-5117. https://doi.org/10.1166/jnn.2008.1079

• Journal Article Type: Article
• Publication Date: Oct 1, 2008
• Deposit Date: Mar 14, 2023
• Print ISSN: 1533-4880
• Publisher: American Scientific Publishers
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 10
• Pages: 5113-5117
• DOI: https://doi.org/10.1166/jnn.2008.1079
• Keywords: Buffer layer, Inkjet, Polymer solar cells, Zinc oxide