A Multifaceted Ferrocene Interlayer for Highly Stable and Efficient Lithium Doped Spiro-OMeTAD-based Perovskite Solar Cells
Thomas Webb, Wei Zhang et al
Adv. Energy Mater. 2022, 2200666
Over the last decade spiro-OMeTAD has remained the hole transporting layer (HTL) of choice for producing high efficiency perovskite solar cells (PSCs).
However, PSCs incorporating spiro-OMeTAD suffer significantly from dopant induced instability and non-ideal band alignments. Herein, a new approach is presented for tackling these issues using the functionality of organometallocenes to bind to Li+ dopant ions, rendering them immobile and reducing their impact on the degradation of PSCs.
The electrical impedance spectra were recorded on the all-in-one Paios characterization platform