| 초록 |
PEDOT:PSS(poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)) is conducting polymer which widely used as hole extraction layer in polymer solar cell. In this experiment, we fabricated polymer solar cells composed of PEDOT:PSS bi-layer structure with various thickness to enhanced power conversion efficiency. Compared to conventional devices having PEDOT:PSS single layer, we found that controlled cells had higher power conversion efficiency than conventional cells. In addition, the more thickness of PEDOT:PSS layer in controlled cell were thicker, the more power conversion efficiency of devices was increased. |
