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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Rethinking the A cation in halide perovskites
TL;DR: In this article , the A-site cation composition can play a critical role in stability and performance of perovskite solar cells and highlight potential opportunities and unanswered questions related to the A cation in OLHPs.
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Three-dimensional direct lithography of stable perovskite nanocrystals in glass
Ke Sun,Dezhi Tan,Xinyuan Fang,Xi Xia,Dajun Lin,Juan Song,Yonghong Lin,Zhaojun Liu,Min Gu,Yuanzheng Yue,Jian Rong Qiu +10 more
TL;DR: Three-dimensional (3D) direct lithography of PNCs with tunable composition and bandgap in glass was reported, and encapsulated P NCs exhibited long-term stability after prolonged heating or organic solvent and ultraviolet light exposure.
Journal ArticleDOI
Solvent engineering for efficient inverted perovskite solar cells based on inorganic CsPbI2Br light absorber
Shasha Zhang,Shaohang Wu,Weitao Chen,Hongmei Zhu,Zhenzhong Xiong,Zhichun Yang,Chuanliang Chen,Rui Chen,Liyuan Han,Wei Chen +9 more
TL;DR: In this article, a homogenous and pinhole-free CsPbI 2Br films have been prepared with optimized solvent of DMF/DMSO mixture with the volume ratio of 3:2.
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Ion Migration: A “Double-Edged Sword” for Halide-Perovskite-Based Electronic Devices
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The Emergence of the Mixed Perovskites and Their Applications as Solar Cells
Jia-Wen Xiao,Lang Liu,Deliang Zhang,Nicholas De Marco,Jin-Wook Lee,Oliver Lin,Qi Chen,Yang Yang +7 more
TL;DR: In this paper, the authors highlight the recent advances in developing mixed halide perovskite (PVSK) materials and their relevant optoelectronic properties, focusing on mixed PVSK materials in the form of polycrystalline thin films, but also discuss nanostructured and two-dimensional (2D) PVSK material due to the increasing interest of broad readership.
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.