A mixed-cation lead mixed-halide perovskite absorber for tandem solar cells
David P. McMeekin,Golnaz Sadoughi,Waqaas Rehman,Giles E. Eperon,Michael Saliba,Maximilian T. Hörantner,Amir A. Haghighirad,Nobuya Sakai,Lars Korte,Bernd Rech,Michael B. Johnston,Laura M. Herz,Henry J. Snaith +12 more
TLDR
It is shown that using cesium ions along with formamidinium cations in lead bromide–iodide cells improved thermal and photostability and lead to high efficiency in single and tandem cells.Abstract:
Metal halide perovskite photovoltaic cells could potentially boost the efficiency of commercial silicon photovoltaic modules from ∼20 toward 30% when used in tandem architectures. An optimum perovskite cell optical band gap of ~1.75 electron volts (eV) can be achieved by varying halide composition, but to date, such materials have had poor photostability and thermal stability. Here we present a highly crystalline and compositionally photostable material, [HC(NH2)2](0.83)Cs(0.17)Pb(I(0.6)Br(0.4))3, with an optical band gap of ~1.74 eV, and we fabricated perovskite cells that reached open-circuit voltages of 1.2 volts and power conversion efficiency of over 17% on small areas and 14.7% on 0.715 cm(2) cells. By combining these perovskite cells with a 19%-efficient silicon cell, we demonstrated the feasibility of achieving >25%-efficient four-terminal tandem cells.read more
Citations
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Journal ArticleDOI
Synthetic Approaches for Halide Perovskite Thin Films.
TL;DR: This comprehensive review explores how the unique chemistry of halide perovskites can be exploited to tailor film growth processes and highlights the connections between processing methods and the resulting film characteristics.
Journal ArticleDOI
A technoeconomic analysis of perovskite solar module manufacturing with low-cost materials and techniques
Zhaoning Song,Chad L. McElvany,Adam B. Phillips,Ilke Celik,Patrick Krantz,Suneth C. Watthage,Geethika K. Liyanage,Defne Apul,Michael J. Heben +8 more
TL;DR: In this article, a bottom-up cost model for perovskite PV modules fabricated using feasible low-cost materials and processes is presented, which shows that PSCs can emerge as a cost leader in PV power generation if critical remaining issues can be resolved.
Journal ArticleDOI
Defect-Assisted Photoinduced Halide Segregation in Mixed-Halide Perovskite Thin Films
Alex J. Barker,Aditya Sadhanala,Felix Deschler,Marina Gandini,Satyaprasad P. Senanayak,Phoebe Pearce,Edoardo Mosconi,Andrew J. Pearson,Yue Wu,Ajay Ram Srimath Kandada,Tomas Leijtens,Filippo De Angelis,Siân E. Dutton,Annamaria Petrozza,Richard H. Friend +14 more
TL;DR: In this paper, it was shown that ion segregation takes place via halide defects, resulting in iodide-rich lowbandgap regions close to the illuminated surface of the film, driven by the strong gradient in carrier generation rate through the thickness of these strongly absorbing materials.
Journal ArticleDOI
Stabilizing the α-Phase of CsPbI3 Perovskite by Sulfobetaine Zwitterions in One-Step Spin-Coating Films
TL;DR: In this paper, a facile method to stabilize the α-phase CsPbII 3 films via a single-step film deposition process was proposed. But the method was limited to a single phase transition from black α phase to yellow δ phase at room temperature.
References
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Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal ArticleDOI
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka,Norman Pellet,Norman Pellet,Soo-Jin Moon,Robin Humphry-Baker,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +7 more
TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
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Efficient planar heterojunction perovskite solar cells by vapour deposition
TL;DR: It is shown that perovskite absorbers can function at the highest efficiencies in simplified device architectures, without the need for complex nanostructures.
Journal ArticleDOI
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
TL;DR: A bilayer architecture comprising the key features of mesoscopic and planar structures obtained by a fully solution-based process is reported, providing important progress towards the understanding of the role of solution-processing in the realization of low-cost and highly efficient perovskite solar cells.
Journal ArticleDOI
The emergence of perovskite solar cells
TL;DR: In this article, a review describes the rapid progress that has been made in hybrid organic-inorganic perovskite solar cells and their applications in the photovoltaic sector.