Electron-Selective SAM Forming Reagent for n-i-p Perovskite Solar Cells
PANDI Isopropyl Alcohol Adduct (PANDI, P3307) is an electron-selective self-assembled monolayer (SAM) forming reagent for n-i-p (direct) type perovskite solar cells. It can be used as an alternative to electron transport layers (ETLs) such as TiO2 and SnO2, and it enables uniform covering of metal oxide surfaces. Devices using PANDI as the electron-selective layer and CsFAMAPbI3 as the perovskite layer have reached a power conversion efficiency (PCE) of 21.5%. This value is among the highest for perovskite solar cells using organic electron transport layers or electron-selective layers, and is comparable to devices using tin(IV) oxide (SnO2). The high efficiency is attributed to the relatively uniform SAM formed by PANDI on the ITO surface and its high electric dipole moment, which enables efficient charge extraction and suppresses non-radiative recombination at the interface.¹) The electron-selective layer forms by annealing at 100 °C, so PANDI is also applicable to flexible substrates; a PANDI-based ITO-PET device showed a PCE of 17.7%. This processing temperature is lower than the around 150 °C typically required for SnO2.²) PANDI is supplied as an isopropyl alcohol adduct and can be used in the same manner as PANDI itself.
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References
- D. S. Utomo, L. M. Svirskaite, A. Musiienko, V. Getautis, T. Malinauskas, R. Azmi, S. De Wolf, et al., ACS Energy Lett. 2024, 9, 1682. doi:10.1021/acsenergylett.4c00306
- S. O. Fürer, S. R. Marder, U. Bach, et al., ACS Appl. Energy Mater. 2023, 6, 667. doi:10.1021/acsaem.2c02735
- Y. Hou, H. J. Snaith, C. J. Brabec, et al., Science 2017, 358, 1192. doi:10.1126/science.aao5561
- J. Xie, X. Yu, M. Lei, D. Yang, et al., Adv. Sci. 2017, 4, 1700018. doi:10.1002/advs.201700018
Download TCI brochure n-Type SAM Forming Agent Enabling Efficient Perovskite Solar Cell PANDI (PDF)
Source
- TCI Product Highlights: www.tcichemicals.com/ID/en/product/tci-topics/ProductHighlights_20250203
- TCI product page P3307: tcichemicals.com/ID/en/p/P3307
- TCI brochure FF190: n-Type SAM Forming Agent Enabling Efficient Perovskite Solar Cell PANDI
For research and laboratory use only, not for human consumption.
