Triarylamine Trisamide Interfacial Modulation for Perovskite Photovoltaics

• DOI: 10.1002/admi.202301053
• Publication Date: 2024-06-20T08:24:59Z
• Authors: Masaud Almalki; Ghewa AlSabeh; Marco A. Ruiz‐Pre...; Hong Zhang; Melodie Galerne; Emilie Moulin; Felix Thomas Eick...; Shaik M. Zakeeruddin; Jovana V. Milić; Nicolas Giuseppone; Michael Grätzel
• Keywords: [CHIM.MATE] Chemical Sciences/Material chemistry; Technology; hybrid perovskite photovoltaics molecular charge transport supramolecular modulation triarylamine; Physics; QC1-999; T; molecular charge transport; supramolecular modulation; triarylamine; 01 natural sciences; 0104 chemical sciences; hybrid perovskite photovoltaics

AbstractHybrid perovskites stand out as one of the leading materials in the new generation of photovoltaics. Their stability under operating conditions, however, remains an ongoing challenge. In particular, aging at the interface with the charge transport materials contributes to the degradation during operation. To address this, functionalized triarylamine‐based modulators are employed, which are known to form hole‐transporting supramolecular stacks, at the interface between the perovskite active layer and the hole‐transporting material in conventional perovskite solar cells. As a result, the improvements of the operational stabilities are demonstrated without compromising device performances, providing a promising strategy for advancing photovoltaics.