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

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

Authors

Seung Hun Eom

Sung Cheol Yoon

J. Lee

Soo-Hyoung Lee



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.

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