| 초록 |
We have fabricated inverted perovskite photovoltaics based on efficient transfer printed hole transport layer (HTL) in terms of the development from an enhanced hydrophobic interface of polyurethane acrylate (PUA) mold film via perfluoropolyether (PFPE). In this research, the energy release rate (G) of mold film has been successfully controlled for efficient transfer process. The transfer printed PEDOT:PSS layer exhibits similar JSC, PCE and improved VOC related to the spin-coated layer. Furthermore, the stability of the device with transfer printed HTL achieved 90 % for about 40 days, which was affected by the preserved crystallinity of perovskite and the inhibition of the degradation of ITO from XRD and XPS analysis. As a result, the transfer-printed HTL through interface control contributes to maintaining the surface morphologies and device properties, which correlates with the stable operation of perovskite photovoltaics. |
