PPACz
CAS Number 3095335-64-8
Latest Products, Self-Assembled Monolayers (SAMs), Perovskite Interface Materials, Charge Transport Layer Materials,
Hole Transport Layer for High Efficiency Perovskite Solar Cells
Heightened UV absorption capabilities and inherent UV resistance
Product Information | MSDS | Literature | Related Products | Technical Support
PPACz is a self-assembled monolayer material featuring a dimethoxy-carbazole electron-rich terminal, a phenylethyl linker, and a phosphonic anchor. Carbazole-based self-assembled monolayer materials are known to show higher dipole moments and covalent binding capabilities, suppressing charge recombination and enhancing device stability. The phenylethyl linker extends the conjugation of the carbazole terminal, enabling heightened UV absorption capabilities and inherent UV resistance.
With a higher dipole moment of 2.60 D, PPACz demonstrates superior hole extraction ability while serving as a hole selection layer for high-performance perovskite solar cell devices. A power conversion efficiency of 26.1% is attained for p-i-n perovskite device based on PPACz as the hole transport layer. Over 90% of their initial efficiency after 540 h is retained for the unencapsulated device owing to the stronger anchoring of PPACz to the ITO substrate with improved interfacial stability.
Serving as hole selective contact for organic solar cells and perovskite solar cells, PPACzA is an alternative to PEDOT:PSS with superior performance and the convenience of solution deposition at low concentration, i.e. 1 mM.
General Information
| CAS Number | 3095335-64-8 |
|---|---|
| Chemical Formula | C22H22NO5P |
| Molecular Weight | 411.39 g/mol |
| Absorption* | λmax 372 nm (in DMF) |
| Fluorescence | λem (N/A) |
| HOMO/LUMO | HOMO = -5.40 eV, LUMO = -2.22 eV |
| Synonyms | (4-(3,6-Dimethoxy-9H-carbazol-9-yl)phenethyl)phosphonic acid |
| Classification or Family | Carbazole derivatives, Self-assembly monolayers, Hole transport layer, Hole selection layer, p-i-n Perovskite solar cells |
Product Details
| Purity | > 98% (HPLC) |
|---|---|
| Melting Point | Tg >300 °C |
| Appearance | White to off-white powder |
Solution Processing Procedure
Typical processing solvents: Methanol, ethanol
Typical suggested concentration: 1.0 mg/ml or 1.0 mM
Typical processing procedure: PPACz solution (0.2 mg/ml) is spin-coated onto ITO surface for 30 s at the speed of 3000 rpm, followed by annealing for 10 min at 100 ℃ (from PSCs device fabrication DOI: 10.1002/anie.202513338)
Chemical Structure
MSDS Documentation
PPACz MSDS SheetLiterature and Reviews
- C. Lv. et al. (2025), Enhanced Efficiency and Stability of Inverted Perovskite Solar Cells via Isomerization Engineering of Self-Assembled Monolayers, Angew. Chem. Int. Ed., 137 (46), e202513338; DOI: 10.1002/anie.202513338.
- T. Wang et al. (2026), Interface Engineering for High-Performance Perovskite Solar Cells, Sol. RRL, 10 (5), e70284; DOI: 10.1002/solr.70284.
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Licensed by Helmholtz-Zentrum Berlin für Materialien und Energie GmbH in Germany and Kaunas University of Technology in Lithuania.