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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Impact of microstructure on the electron–hole interaction in lead halide perovskites
Arman Mahboubi Soufiani,Zhuo Yang,Trevor Young,Atsuhiko Miyata,Alessandro Surrente,Alexander R. Pascoe,Krzysztof Galkowski,Krzysztof Galkowski,Mojtaba Abdi-Jalebi,Roberto Brenes,Joanna Urban,Nan Zhang,Vladimir Bulovic,Oliver Portugall,Yi-Bing Cheng,Robin J. Nicholas,Anita Ho-Baillie,Martin A. Green,Paulina Plochocka,Samuel D. Stranks,Samuel D. Stranks +20 more
TL;DR: In this article, the Coulomb interaction between photo-created electron-hole pairs in methylammonium lead triiodide (MAPbI3) and the triple-cation lead mixed-halide composition was investigated using magneto-optical transmission spectroscopy.
Journal ArticleDOI
26.7% Efficient 4-Terminal Perovskite–Silicon Tandem Solar Cell Composed of a High-Performance Semitransparent Perovskite Cell and a Doped Poly-Si/SiO x Passivating Contact Silicon Cell
Ajeet Rohatgi,Kai Zhu,Jinhui Tong,Dong Hoe Kim,Elsa Reichmanis,Brian Rounsaville,Vivek Prakash,Young-Woo Ok +7 more
TL;DR: In this article, the authors demonstrate a 26.7% perovskite-Si 4T tandem cell comprising a highly efficient 17.8% CsFAMAPbIBr semitransparent, 1.63-eV bandgap perovsite top cell, and a ≥ 22% efficiency n-type Si bottom cell fabricated with a conventional boron diffused emitter on the front and carrier selective n+ poly-Si/SiOx passivated contact on the rear.
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Spatially Modulating the Fluorescence Color of Mixed-Halide Perovskite Nanoplatelets through Direct Femtosecond Laser Writing.
Chunhua Zhou,Guiyuan Cao,Zhixing Gan,Zhixing Gan,Qingdong Ou,Weijian Chen,Qiaoliang Bao,Baohua Jia,Xiaoming Wen +8 more
TL;DR: Spatially resolved modulation of the fluorescence of nanoplatelets (NPs) by femtosecond direct laser writing (fs-DLW) is demonstrated, implying the potential applications in micro-encryption, sensors, multicolor displays, lasers, and light-emitting devices.
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The rising star in photovoltaics-perovskite solar cells: The past, present and future
TL;DR: In this paper, the authors reviewed the development history and current research status of perovskite solar cells and explained why PVSCs are so important in the next-generation solar cells, why organometal halide perovsites work so well as light absorbers, and what the inherent differences are among different cell configurations.
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Modeling Thin Film Solar Cells: From Organic to Perovskite
TL;DR: In this paper, the application of the device model method in the simulation of organic and organic-inorganic perovskite solar cells is reviewed, and the ways of device model are elucidated by discussing the metal-insulator-metal picture and the equations describing the physics.
References
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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
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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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