| 초록 |
Polymer solar cells (PSCs) devices have fascinated much attention due to their useful properties such as light weight, design flexibility, and potential of low production cost. A conducting polymer, PEDOT:PSS, has also been generally used as a hole transporting layer(HTL). A defect of PEDOT:PSS are well known as hygroscopic properties, high acidity and inhomogeneous electrical properties, leading to poor long-term stability. Recently, a p-type materials such as metal oxide, conductive polymer, and graphene-based materials have been most commonly used alternative to PEODT:PSS in PSCs. In addition, reduced graphene oxide (rGO) have some merits that solution based chemical rGO include bulk scale production ability, low cost, and the rGO can be made of thin films with a solution-processable technique. Herein, we demonstrated that solution-processable graphene-based thin films can be used as an efficient HTL for high-efficiency and high-stability inverted PSCs. |
