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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Between the Sheets: Postsynthetic Transformations in Hybrid Perovskites
TL;DR: In this article, the authors highlight how the utility of hybrid perovskites can be further extended through chemical and physical post-synthetic transformations, with an emphasis on the design of functional solids.
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Critical Comparison of FAPbX3 and MAPbX3 (X = Br and Cl): How Do They Differ?
Sharada Govinda,Bhushan P. Kore,Diptikanta Swain,Akmal Hossain,Chandan De,Tayur N. Guru Row,D. D. Sarma,D. D. Sarma +7 more
TL;DR: In this paper, temperature-dependent dielectric measurements on formamidinium lead halide perovskites, FAPbCl3 and FAPbr3, compared to those of MAPbX3 and previously reported MAPbBr3, reveal the strongly suppressed temperature dependence of dielectrics in FA compounds in the temperature range of approximately 140-300 K.
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New generation hole transporting materials for perovskite solar cells: amide-based small-molecules with nonconjugated backbones
Michiel L. Petrus,Kelly Schutt,Maximilian T. Sirtl,Eline M. Hutter,Anna C. Closs,James M. Ball,Johan Bijleveld,Annamaria Petrozza,Thomas Bein,Theo J. Dingemans,Tom J. Savenije,Henry J. Snaith,Pablo Docampo +12 more
TL;DR: In this paper, a functional amide-based backbone is introduced, which allows this material to be synthesized in a simple condensation reaction with an estimated cost of <$5 g(-1).
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Putting the Squeeze on Lead Iodide Perovskites: Pressure-Induced Effects To Tune Their Structural and Optoelectronic Behavior.
TL;DR: The use of hydrostatic pressure is highlighted as a powerful tool for systematically modifying the photovoltaic performance of halide perovskites with high level ab initio simulation techniques.
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Ultrasound-spray deposition of multi-walled carbon nanotubes on NiO nanoparticles-embedded perovskite layers for high-performance carbon-based perovskite solar cells
Yinglong Yang,Haining Chen,Xiaoli Zheng,Xiangyue Meng,Teng Zhang,Chen Hu,Yang Bai,Shuang Xiao,Shuang Xiao,Shihe Yang,Shihe Yang +10 more
TL;DR: In this article, a simple ultrasound spray method was used to deposit pure multi-walled carbon nanotubes (MWCNT) films, which formed a seamless contact at the perovskite/carbon interface, thus boosting the power-conversion efficiency of C-PSCs to 14.07% as compared to drop cast MWCNT electrodes.
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
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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.