| 초록 |
Recently, cathode buffer layer materials have been investigated to enhance the device performance for polymer solar cells (PSCs). Herein, we introduced pyridine derivatives with hydroxide substituted different position as the cathode buffer layer, which can improve the power conversion efficiency of PSCs. As a result, the work function of the cathode and energy barrier at the interfaces between the cathode and active layer was modified by changing interfacial dipole as different positions of hydroxide in pyridine. |
