| 초록 |
Here we develop solution-processed perovskite-NiO nanoparticles (MAPbI3-NiO NPs and MAPbI3-xClx-NiO NPs) composite films in ambient condition. Firstly, we report an air-stable, hole-conductor-free (HCF), high photocurrent PSC based on MAPbI3-NiO NPs composite, achieving a high PCE of 12.14 % and excellent air-stability over 60 days. [1] Furthermore, we employ a simple and effective interfacial engineering with metal oxide nanoparticles in PSCs based on MAPbI3-xClx-NiO NPs composite resulting in a high PCE exceeding 18.10 % and a remarkable air-stability over 210 days. [2] Subsequently, we achieved fully-ambient-processed stable and mesoscopic semitransparent PSCs by non-continuous islands-structure-MAPbI3-xClx-NiO NPs composite and interface engineering. XPS and IR spectra analysis revealed that Ni-O, Pb-O, C-O, Ni-N and N-NiO bonds attributed to strong chemical interaction between NiO and MAPbI3 or MAPbI3-xClx-NiO NPs molecules enhance the air stability of MAPbI3-NiO composite based PSCs. |
