Monodentate versus Bidentate Anchoring Groups in Self-Assembling Molecules (SAMs) for Robust p-i-n Perovskite Solar Cells
Creators
- 1. Inst Chem Res Catalonia ICIQ, E-43007 Tarragona, Spain
- 2. Univ Silesia, Inst Chem, PL-40006 Katowice, Poland
- 3. ICMAB CSIC, Inst Ciencia Mat Barcelona, Bellaterra 08193, Spain
Description
Current improvement in perovskite solar cells (PSCs) has been achieved by interface engineering and fine-tuning of charge-selective contacts. In this work, we report three novel molecules that can form self-assembled layers (SAMs) as an alternative to the most commonly used p-type contact material, PTAA. Two of these molecules have bidentate anchoring groups (MC-54 and MC-55), while the last one is monodentate (MC-45). Besides the PTAA comparison, we also compared those two types of molecules and their effect on the solar cell's performance. Devices fabricated with MC-54 and MC-55 showed a remarkable field factor (about 80%) and a better current density, leading to higher efficient solar cells in comparison to MC-45 and PTAA. Moreover, mono- and bidentate present higher stability and reproducibility in comparison to PTAA.
Files
bib-e324aafb-94bc-4480-8478-932f729486b9.txt
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