| 초록 |
Modern people are increasingly demanding next-generation electronics products that are lightweight, flexible, and stretchable. Perovskite solar cells can be regarded as promising candidates for future generation systems because of their high PCE, light weight and excellent flexibility. In order to develop a flexible high-performance perovskite solar cell, it is necessary to develop a TCE having a low sheet resistance, high transmittance, and excellent flexibility. In this study, AuCl3 doping and chemical bonding were introduced to reduce the sheet resistance of graphene and improve adhesion to the substrate. A 3-aminopropyltriethoxysilane (APTES) layer is present between the graphene and the PET substrate. As a result, the PCE of the flexible FAPbI3-xBrx solar cells has improved to 17.4/17.9% under the forward/reverse scan conditions. Furthermore, our device showed excellent bending stability while maintaining the original PCE above 75% after 1,000 bend cycles at bend radius＞ 4 mm. |
