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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Towards optical optimization of planar monolithic perovskite/silicon-heterojunction tandem solar cells
Steve Albrecht,Michael Saliba,Juan-Pablo Correa-Baena,Klaus Jäger,Lars Korte,Anders Hagfeldt,Michael Grätzel,Bernd Rech +7 more
TL;DR: In this article, the optical influence of the ITO thickness in the interconnecting layer and fabricate an efficient monolithic tandem cell with a reduced ITO layer thickness that shows slightly improved absorption within the silicon sub-cell and a stabilized power output of 17%.
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Cs+ incorporation into CH3NH3PbI3 perovskite: substitution limit and stability enhancement
Ralf G. Niemann,Laxman Gouda,Jiangang Hu,Shay Tirosh,Ronen Gottesman,Petra J. Cameron,Arie Zaban +6 more
TL;DR: In this article, the mixed cation perovskite Csx(CH3NH3)1−xPbI3 was exchanged by dipping MAPbI-3 films into a CsI solution, thereby incrementally replacing the MA+ in a time-resolved dipping process and analyzed the resulting thinfilms with UV-Vis, XRD, EDAX, SEM and optical depth-analysis in a high-throughput fashion.
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Halide Segregation in Mixed-Halide Perovskites: Influence of A-Site Cations.
Alexander J. Knight,Juliane Borchert,Robert D. J. Oliver,Jay B. Patel,Paolo G. Radaelli,Henry J. Snaith,Michael B. Johnston,Laura M. Herz +7 more
TL;DR: In this paper, the authors combine simultaneous in situ photoluminescence and X-ray diffraction measurements to demonstrate clear differences in compositional and optoelectronic changes associated with halide segregation in MAPb(Br 0.5I0.5)3 and FA0.83Cs0.6)3 films.
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Electronic structure of the CsPbBr3/polytriarylamine (PTAA) system
TL;DR: In this paper, the ionization energy and electron affinities of CsPbBr3 and the hole transport polymer polytriarylamine (PTAA) were measured using ultraviolet, X-ray, and inverse photo-emission spectroscopies.
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Monolithic perovskite/organic tandem solar cells with 23.6% efficiency enabled by reduced voltage losses and optimized interconnecting layer
Wei Ting Chen,Yudong Zhu,Jingwei Xiu,Guocong Chen,H.F. Liang,Shunchang Liu,Hansong Xue,Erik Birgersson,Jian Wei Ho,Xinshun Qin,Jingyang Lin,Ru-Zhang Ma,Tao Liu,Yaning He,Alan Man Ching Ng,Xugang Guo,Zhubing He,He Yan,Aleksandra B. Djurišić,Yi-Chen Hou +19 more
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.
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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.
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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.