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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Recent progress of minimal voltage losses for high-performance perovskite photovoltaics
TL;DR: In this article, the definition and determining factors of Vloss are elucidated, and the state-of-the-art low Vloss values of PSCs based on various types of prevailing perovskites with variable bandgaps are comprehensively discussed.
Journal ArticleDOI
Data mining new energy materials from structure databases
TL;DR: This article reviews recent progresses on the data mining study of new energy materials based on structure databases, in the context of dye-sensitized solar cells and perovskite solar cells, and also include other energy systems such as water splitting systems, lithium batteries, thermoelectric devices and gas adsorbent materials.
Journal ArticleDOI
Ecoevolutionary Dynamics of Carbon Cycling in the Anthropocene
J. Grey Monroe,David W. Markman,Whitney S. Beck,Andrew J. Felton,Megan L. Vahsen,Megan L. Vahsen,Yamina Pressler +6 more
TL;DR: The components necessary for the evolution of C cycling traits to substantially drive changes in global C cycling are examined and these components are integrated into a framework of ecoevolutionary dynamics.
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Improved stability and efficiency of perovskite solar cells with submicron flexible barrier films deposited in air
Nicholas Rolston,Adam D. Printz,Florian Hilt,Michael Q. Hovish,Karsten Brüning,Christopher J. Tassone,Reinhold H. Dauskardt +6 more
TL;DR: In this paper, a scalable spray plasma process was used to produce submicron organosilicate barrier films that improved both the stability and efficiency of perovskite solar cells.
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
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.
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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.