Effect of Thermal Annealing of Gravure Printed Polymer Solar Cells

  • Lee, Ji-Yeon (School of Chemical Engineering, Sungkyunkwan University) ;
  • Kim, Jung-Woo (School of Advanced Materials Science and Engineering, Sungkyunkwan University) ;
  • Kim, Hyung-Sub (School of Advanced Materials Science and Engineering, Sungkyunkwan University) ;
  • Cho, Sung-Min (School of Chemical Engineering, Sungkyunkwan University) ;
  • Chae, Hee-Yeop (School of Chemical Engineering, Sungkyunkwan University)
  • Published : 2009.10.12

Abstract

Polymer solar cells were fabricated with gravure printing process and the effect of thermal annealing of gravure printed organic layer was investigated. The layer structure of polymer solar cells is glass / ITO / hole transfer layer / active layer / Al structure was fabricated. For the active layer, 1:1 ratio of poly-3-hexylthiophene (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) mixture was applied. The P3HT/PCBM blend was gravure printed onto the substrates. The effect of thermal annealing was investigated by changing annealing time and the number of printing. Maximum 3.6% of power conversion efficiency was achieved with gravure printing of organic layer and thermal annealing in this work.

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