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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Solution-processed Highly Bright and Durable Cesium Lead Halide Perovskite Light-emitting Diodes
Zhanhua Wei,Zhanhua Wei,Ajay Perumal,Rui Su,Shendre Sushant,Jun Xing,Qing Zhang,Swee Tiam Tan,Hilmi Volkan Demir,Qihua Xiong +9 more
TL;DR: This work reports highly bright and durable CsPbBr3-based LEDs fabricated using a one-step solution method and finds that the CsBr additive not only significantly enhances the PLQY but also induces directional crystal growth into micro-plates, forming a smooth perovskite film for LEDs.
Journal ArticleDOI
Atomic-scale microstructure of metal halide perovskite.
Mathias Uller Rothmann,Judy S. Kim,Judy S. Kim,Juliane Borchert,Kilian Lohmann,Colum M. O'Leary,Alex Sheader,Laura Clark,Henry J. Snaith,Michael B. Johnston,Peter D. Nellist,Laura M. Herz +11 more
TL;DR: An atomic crystallographic structure of formamidinium lead triiodide (FAPbI3) polycrystalline thin films obtained by low-electron-dose scanning transmission electron microscopy with advanced image processing is presented and explains why the perovskite structure can sustain significant deviations from stoichiometry and recovers remarkably well from damage.
Journal ArticleDOI
Tin–lead halide perovskites with improved thermal and air stability for efficient all-perovskite tandem solar cells
Tomas Leijtens,Tomas Leijtens,Rohit Prasanna,Rohit Prasanna,Kevin A. Bush,Giles E. Eperon,James A. Raiford,Aryeh Gold-Parker,Aryeh Gold-Parker,Eli J. Wolf,Simon A. Swifter,Caleb C. Boyd,Hsin-Ping Wang,Michael F. Toney,Stacey F. Bent,Michael D. McGehee,Michael D. McGehee +16 more
TL;DR: In this paper, the fabrication of monolithic all-perovskite tandem solar cells with a stabilized power conversion efficiency of 19.1% and demonstrate improved thermal, atmospheric, and operational stability.
Journal ArticleDOI
Water Vapor Treatment of Low-Temperature Deposited SnO2 Electron Selective Layers for Efficient Flexible Perovskite Solar Cells
Changlei Wang,Changlei Wang,Lei Guan,Lei Guan,Dewei Zhao,Yue Yu,Corey R. Grice,Zhaoning Song,Rasha A. Awni,Jing Chen,Jianbo Wang,Jianbo Wang,Xingzhong Zhao,Yanfa Yan +13 more
TL;DR: In this paper, the authors reported that facile water vapor treatment of PEALD-synthesized SnO2 ESLs can effectively improve the VOC and FF while reducing the degree of J-V hysteresis.
Journal ArticleDOI
Efficient Perovskite Solar Cell Modules with High Stability Enabled by Iodide Diffusion Barriers
Enbing Bi,Wentao Tang,Han Chen,Yanbo Wang,Julien Barbaud,Tianhao Wu,Weiyu Kong,Peng Tu,Hong Zhu,Xiaoqin Zeng,Jinjin He,Shin-ichi Kan,Xudong Yang,Michael Grätzel,Liyuan Han,Liyuan Han +15 more
TL;DR: In this article, a low-temperature processing strategy was introduced to increase the operational stability of high-efficiency perovskite solar modules by engineering low-dimensional diffusion barriers, reducing the unwanted interfacial diffusion of ions by 103-107 times in magnitude.
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.