Tailored Crystallization Dynamics for Efficient and Stable DMSO‐Free Tin Perovskite Solar Cells
Tin perovskite solar cells are emerging as a sustainable lead-free alternative in thin film photovoltaics. DMSO-free processed tin perovskites are gaining interest due to the detrimental effects of DMSO on tin oxidation. However, replacing DMSO with other solvents remains challenging due to the accelerated crystallization dynamics in non-DMSO systems. In this study, the crystallization process in a DMSO-free solvent system is regulated by managing the transition from the sol-gel phase to the solid film. Specifically, piperazine dihydriodide (PDAI) and 4-tert-butylpyridine (tBP) are utilized to coordinately tune the colloidal chemistry through forming large pre-nucleation clusters in perovskite ink, further, facilitating the film formation process. By combining tBP and PDAI, a controllable crystallization rate is achieved as evidenced by in situ photoluminescence (PL) measurement during spin-coating. As a result, tin perovskite films show high crystallinity and improved microstructure. Devices treated with tBP+PDAI exhibit a champion power conversion efficiency of 7.8% and excellent stability without observable degradation for over 3000 h stored in the N<sub>2</sub> glovebox. These findings advance understanding and managing crystallization in DMSO-free solvents processed tin perovskite solar cells.
Authors
- Shengnan Zuo (ORCID: https://orcid.org/0009-0005-4842-9871)
- Artem Musiienko (ORCID: https://orcid.org/0000-0002-2259-8387)
- Florian Scheler (ORCID: https://orcid.org/0000-0001-5066-3206)
- Florian Ruske (ORCID: https://orcid.org/0000-0002-6363-4591)
- Antonio Abate (ORCID: https://orcid.org/0000-0002-3012-3541)
- Lennart Frohloff (ORCID: https://orcid.org/0000-0002-2178-0806)
- Noor Titan Putri Hartono (ORCID: https://orcid.org/0000-0002-0748-0620)
- Maxim Simmonds (ORCID: https://orcid.org/0009-0003-1803-0857)
- Chiara Frasca (ORCID: https://orcid.org/0009-0003-9503-670X)
- Guixiang Li (ORCID: https://orcid.org/0000-0002-8730-0713)
- Meng Ke Li (ORCID: https://orcid.org/0000-0003-0360-7791)
- Steve Albrecht (ORCID: https://orcid.org/0000-0001-9962-9535)
- Jinzhao Li (ORCID: https://orcid.org/0000-0001-6866-1321)
- Karunanantharajah Prashanthan (ORCID: https://orcid.org/0000-0001-6042-7055)
- Fengshuo Zu (ORCID: https://orcid.org/0000-0002-5861-4887)
- Eva Unger (ORCID: https://orcid.org/0000-0002-3343-867X)
- André Dallmann (ORCID: https://orcid.org/0000-0002-0141-2635)
- Norbert Koch (ORCID: https://orcid.org/0000-0002-6042-6447)
- Florian Mathies (ORCID: https://orcid.org/0000-0002-8950-3901)
- Alexander Tarasov (ORCID: https://orcid.org/0000-0001-9145-5008)
- Mailis M. Lounasvuori (ORCID: https://orcid.org/0000-0001-9738-4642)
- Wenhui Li (ORCID: https://orcid.org/0000-0001-7655-8033)
- Mahmoud Hussein Aldanmasy
Institutions
- Henan University (CN)
- University of Jaffna (LK)
- Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
- Humboldt-Universität zu Berlin (DE)
- Institut Català d'Investigació Química (ES)
Publication Details
- Journal
- Advanced Science
- Published
- 2025-05-23
- DOI
- https://doi.org/10.1002/advs.202501311
- Citations
- 3
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.19
Funders
- Università degli Studi di Napoli Federico II
- European Commission
- Deutscher Akademischer Austauschdienst
- Bundesministerium für Bildung und Forschung
- Universität Potsdam
- China Scholarship Council
- Helmholtz-Zentrum Berlin für Materialien und Energie
- HORIZON EUROPE Framework Programme