π‐Expanded Carbazoles as Hole‐Selective Self‐Assembled Monolayers for High‐Performance Perovskite Solar Cells

• Published in: Angewandte Chemie International Edition Vol. 61; no. 51; pp. e202213560 - n/a
• Main Authors: Jiang, Wenlin, Li, Fengzhu, Li, Mingliang, Qi, Feng, Lin, Francis R., Jen, Alex K.‐Y.
• Format: Journal Article
• Language: English
• Published: WEINHEIM Wiley 19.12.2022; Wiley Subscription Services, Inc
• Edition: International ed. in English
• Subjects: Carbazole; Carbazoles; Chemistry; Chemistry, Multidisciplinary; Crystallization; Dipole moments; Hole-Selective Layer; Monolayers; Perovskite; Perovskites; Photovoltaic cells; Physical Sciences; Science & Technology; Self-Assembled Monolayer; Single crystals; Solar Cells; Substrates; PHOSPHONIC-ACIDS; Perovskite; SPIN-CAST; Self-Assembled Monolayer; Hole-Selective Layer; Carbazole; Solar Cells; EFFICIENCY; SURFACES

Carbazole‐derived self‐assembled monolayers (SAMs) are promising hole‐selective materials for inverted perovskite solar cells (PSCs). However, they often possess small dipoles which prohibit them from effectively modulating the workfunction of ITO substrate, limiting the PSC photovoltage. Moreover,...