2024
DOI: 10.1002/ange.202412042
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Molecular Design of Hole Transport Materials to Immobilize Ion Motion for Photostable Perovskite Solar Cells

Zheng Zhang,
Chenghao Duan,
Sijing Wang
et al.

Abstract: Poor operational stability is a crucial factor limiting the further application of perovskite solar cells (PSCs). Organic semiconductor layers can be a powerful means for reinforcing interfaces and inhibiting ion migration. Herein, two hole‐transporting molecules, pDPA‐SFX and mDPA‐SFX, are synthesized with tuned substituent connection sites. The meta‐substituted mDPA‐SFX results in a larger dipole moment, more ordered packing, and better charge mobility than pDPA‐SFX, accompany with strong interface bonding o… Show more

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