| AVS 64th International Symposium & Exhibition | |
| Thin Films Division | Wednesday Sessions |
| Session TF-WeM |
| Session: | Thin Film for Photovoltaics |
| Presenter: | Mohammad Khaja Nazeeruddin, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland |
| Authors: | M.K. Nazeeruddin, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland G. Grancini, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland C. Roldán-Carmona, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland I. Zimmermann, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland Y. Lee, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland |
| Correspondent: | Click to Email |
Metal halide perovskite solar cells (PSCs) have received global attention because of their excellent photovoltaic performance and ease of fabrication. However, much of the focus in perovskite solar cell advance has been on improved device efficiency through trial and error recipe modification. Despite the impressive photovoltaic performances, perovskite solar cells are poorly stable under operation, failing by far the requirements for a widespread commercial uptake.1-3 Various technological approaches have been proposed to overcome the instability problem, which, while delivering appreciable improvements, are still far from a market-proof solution.4-5 In this talk we demonstrate stable perovskite devices by engineering an ultra-stable 2D/3D HOOC(CH2)2NH3)2PbI4/CH3NH3PbI3 perovskite junction. The 2D/3D composite delivers an exceptional gradually organized multidimensional structure that yields 13% photovoltaic efficiency in a low cost, hole-conductor free architecture and 20% in standard mesoporous solar cells. To demonstrate the up-scale potential of this technology we fabricate 10x10 cm2 solar modules by a fully printable, industrial-scale process delivering 11% efficient devices which are stable for >10,000 hours with zero efficiency loss measured under controlled standard conditions. This innovative architecture will likely enable the timely commercialization of perovskite solar cells.
References
1. National Renewable Energy Laboratory, N.R.E.L. http://www.nrel.gov/ncpv/images/efficiency_chart.jpg.
2. M. Saliba, T. Matsui, J. Seo, K. Domanski, J.-P. Correa-Baena, Md.K. Nazeeruddin, S.M. Zakeeruddin, W. Tress, A. Abate, A. Hagfeldt, M. Grätzel Energy Environ. Sci. 9, 1989-1997 (2016).
3. X. Li et al., Improved performance and stability of perovskite solar cells by crystal crosslinking with alkylphosphonic acid ω-ammonium chlorides. Nat. Chem. 7, 703–711 (2015).
4. I. C. Smith, E. T. Hoke, D. Solis-Ibarra, M. D. McGehee, H. I. Karunadasa, A Layered Hybrid Perovskite Solar-Cell Absorber with Enhanced Moisture Stability. Angew. Chem. 126, 11414–11417 (2014).
5. K. Domanski et al., Not All That Glitters Is Gold: Metal-Migration-Induced Degradation in Perovskite Solar Cells. ACS Nano. 10, 6306–6314 (2016).