Bis(methylammonium) tetrasulfidotungstate(VI) [PDF]
Acta Crystallographica Section E, 2008 The title compound, (CH6N)2[WS4], was synthesized by the reaction of ammonium tetrasulfidotungstate(VI) with aqueous methylamine. The title compound is isotypic with the corresponding Mo analogue (CH6N)2[MoS4], and its structure consists of a slightly ...
Wolfgang Bensch +2 more
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Comparing the excited-state properties of a mixed-cation–mixed-halide perovskite to methylammonium lead iodide [PDF]
The Journal of Chemical Physics, 2020 Organic–inorganic perovskites are one of the most promising photovoltaic materials for the design of next generation solar cells. The lead-based perovskite prepared with methylammonium and iodide was the first in demonstrating high power conversion efficiency, and it remains one of the most used materials today.
Jan C. Brauer +12 more
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Pressure-Induced Locking of Methylammonium Cations Versus Amorphization in Hybrid Lead Iodide Perovskites [PDF]
Proceedings of the nanoGe Fall Meeting 2018, 2018 The structural phase behavior of high-quality single crystals of methylammonium lead iodide (CH3NH3PbI3 or MAPbI3) was revisited by combining Raman scattering and photoluminescence (PL) measurements under high hydrostatic pressure up to ca. 10 GPa.
Adrián Francisco-López +7 more
openaire +4 more sources
Surface and Interfacial Passivations for FASnI3 Solar Cells with Co-Cations [PDF]
, 2023 Seven cations, methylammonium (MA), ethylammonium (EA), aziridinium (AZ), dimethylammonium (DMA), 2-hydroxyethylammonium (HEA), imidazolium (IM), and guanidinium (GA), were used to cocrystallize with formamidinium (FA) to form cocationic tin perovskite ...
Yu-An Ko (15373864) +5 more
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Identifying high performance and durable methylammonium-free lead halide perovskites through high throughput synthesis and characterization [PDF]
, 2021 One of the organic component in the perovskite photo-absorber, the methylammonium cation, has been suggested to be a roadblock to long-term operation of organic-inorganic hybrid perovskite-based solar cells. Methylammonium-free perovskites thus represent
Vagott, Jacob N. +9 more
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IEEE Photonics Journal, 2022 Compositional engineering adding organic and inorganic cations is considered one of the effective ways to improve the optoelectronic performance of PSCs. However, investigations of mixed-cations in PSCs are still a nascent area of research. In this study,
Soo Beom Hong, Hyung Wook Choi
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Chinese Journal of Magnetic Resonance, 2022 In this work, the motions of methylammonium cations (MA) in different phase structures of MAPbCl3 perovskites, including orthorhombic, tetragonal and cubic phases, were studied by solid-state 2H nuclear magnetic resonance (NMR).
Jia-qi LIANG +2 more
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Phonon Properties and Lattice Dynamics of Two- and Tri-Layered Lead Iodide Perovskites Comprising Butylammonium and Methylammonium Cations-Temperature-Dependent Raman Studies. [PDF]
Materials (Basel)Hybrid lead iodide perovskites are promising photovoltaic and light-emitting materials. Extant literature data on the key optoelectronic and luminescent properties of hybrid perovskites indicate that these properties are affected by electron–phonon
Mączka M, Smółka S, Ptak M.
europepmc +2 more sources
Enhanced perovskite electronic properties via A-site cation engineering
Fundamental Research, 2021 Organic-inorganic halide perovskites have emerged as excellent candidates for low-cost photovoltaics and optoelectronics. While the predominant recent trend in designing perovskites for efficient and stable solar cells has been to mix different A-site ...
Xufeng Xiao +11 more
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Thermal Structure Transformation of Methylammonium Vanadate and it's Application as a Negative Staining Reagent for Observing SARS‐CoV‐2 [PDF]
, 2022 The solid‐state thermal structure transformation of methylammonium vanadate, (CH(3)NH(3))VO(3), from −150 °C to 350 °C is reported. Variable‐temperature X‐ray single‐crystal structure analysis at 23, 0, −50, −100, and −150 °C reveal (CH(3)NH(3))VO(3 ...
Sugiarto +7 more
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