3PATAT-C3
CAS Number 3048690-10-1
Charge Transport Layer Materials, Materials, OLED Materials, Perovskite Interface Materials, Perovskite Materials, Self-Assembled Monolayers (SAMs),
Tripodal Self-Assembled Monolayer Molecule for High Efficiency Solar Cells
Hole transport or extraction layer for NFA-polymer solar cells and p-i-n perovskite solar cells
Product Information | MSDS | Literature and Reviews
3PATAT-C3 is a tripodal self-assembled monolayer material bearing three anchoring phosphonic acids, three n-propyl spacers and one triazatruxene terminal. When all three anchors of the SAM molecule are bound to the electrode surface, the terminal triazatruxene functional group is then forced to have a face-on orientation to the anode. In close contact to the perovskite layer with a face-on orientation, the π-conjugated triazatruxene structure allows great efficiency for the terminal functional groups to collect holes from the perovskite active layer materials while compared to those of the edge-on orientation induced by a monopod SAM.
Consequently, the devices based on this tripod SAM molecule achieved a higher PCE of 23.0% than that of the MeO-2PACz-based devices with a PCE of 21.0%. Moreover, the inverted perovskite photovoltaic devices using 3PATAT-C3 showed outstanding operational stability without any PCE loss after more than 2000 h of shelf-stability test.
Device configuration: ITO/3PATAT-C3/Cs0.05MA0.15FA0.80Pb 2.75Br0.25/EDAI2/C60/BCP/Ag.
The contact angle of water drop on 3PATAT-C3 coated ITO surface is 75° while on the bare ITO surface is 8°. The surface density of 3PATAT-C3 on ITO substrate fabricated from 1 mM DMF solutions was determined to be 2.9 × 1013 molecules cm–2.
Serving as hole selective contact for organic solar cells and perovskite solar cells, 3PATAT-C3 is an alternative to PEDOT:PSS with superior performance with the convenience of solution deposition at low concentration, i.e. 1 mM.
Solution Processing Procedure
Typical processing solvents: DMF, THF, IPA, ethanol, methanol Typical concentration: 1.0 mg/ml, 1 mM (0.711 mg/ml), 0.1 mM
Typical processing procedure:
50 uL of 3PATAT-C3 solution (0.1 mM in DMF) is deposited onto the center of the substrate surface and spin-coated for 30 s at the speed of 3000 rpm. After annealing for 10 min at 110 °C (DOI: 10.1021/jacs.3c00805).
General Information
| CAS Number | 3048690-10-1 |
|---|---|
| Chemical Formula | C33H36N3O9P3 |
| Molecular Weight | 711.58 g/mol |
| Absorption* | λmax (324 nm in DMF) |
| Fluorescence | λem (n.a.) |
| HOMO/LUMO | HOMO = 5.48 eV |
| Synonyms | [(5H-Diindolo[3,2-a:3',2'-c]carbazole-5,10,15-triyl)tris(propane-3,1-diyl)]tris(phosphonic acid) |
| Classification or Family | Triazatruxene derivatives, Self-assembly monolayers, Hole transport layer, Hole extraction layer, p-i-n Perovskite solar cells, Organic photovoltaics |
Product Details
| Purity | > 98% (HPLC) |
|---|---|
| Melting Point | N/A |
| Appearance | White to grey powder/crystals |
Chemical Structure
MSDS Documentation
3PATAT-C3 MSDS SheetLiterature and Reviews
- M. Truong et al. (2023); Tripodal Triazatruxene Derivative as a Face-On Oriented Hole-Collecting Monolayer for Efficient and Stable Inverted Perovskite Solar Cells, J. Am. Chem. Soc., 145 (13), 7528–7539; DOI: 10.1021/jacs.3c00805.
- T. Wu et al. (2024); Self-Assembled Monolayer Hole-Selective Contact for Up-Scalable and Cost-Effective Inverted Perovskite Solar Cells, Adv. Funct. Mater., 2316500; DOI: 10.1002/adfm.202316500.
- W. Li et al. (2024); Self-assembled molecules as selective contacts for efficient and stable perovskite solar cells, Mater. Chem. Front., 8, 681-699; DOI: 10.1039/d3qm01017a.