Multifunctional Iron–Porphyrin Additive for Hole‐Transporting Layer Toward Efficient and Stable Perovskite Solar Cells
Minghuang Guo,
Chensi Liu,
Chenchen Wu
et al.
Abstract:Spiro‐OMeTAD, as a crucial component of the hole‐transporting layer, exhibits limited mobility and conductivity, and the Li‐TFSI dopant is sensitive to water vapor, which imposed restrictions on the photovoltaic efficiency and durability of perovskite solar cells (PSCs). In this work, the iron‐porphyrin (FePP) molecule is introduced into Spiro‐OMeTAD solution as additive, which facilitate the oxidation process of Spiro‐OMeTAD, leading to the enhancement of hole mobility and hole extraction and transport. Besid… Show more
The designed copolymer PATTBTT delivered a power conversion efficiency of 17.6% in PSCs, which was higher than those obtained for reference devices fabricated using conventional polytriarylamine-based hole-transport materials.
The designed copolymer PATTBTT delivered a power conversion efficiency of 17.6% in PSCs, which was higher than those obtained for reference devices fabricated using conventional polytriarylamine-based hole-transport materials.
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