Results 11 to 20 of about 2,713 (215)

Tetrabutylammonium (TBA)-Doped Methylammonium Lead Iodide: High Quality and Stable Perovskite Thin Films

Frontiers in Energy Research, 2022
This work reported the successive incorporation of tetrabutylammonium (TBA) into Methylammonium lead Iodide (MAPbI3) perovskite. The thin films were characterized by X-Ray diffraction (XRD), Scanning electron microscopy (SEM), Transmittance electron ...
Amal Bouich, Amal Bouich, Júlia Marí-Guaita, Bouchta Sahraoui, Pablo Palacios, Bernabé Marí   +5 more
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How Methylammonium Cations and Chlorine Dopants Heal Defects in Lead Iodide Perovskites [PDF]

Advanced Energy Materials, 2018
AbstractLead tri‐iodide methylammonium (MAPbI3) perovskite polycrystalline materials show complex optoelectronic behavior, largely because their 3D semiconducting inorganic framework is strongly perturbed by the organic cations and ubiquitous structural or chemical inhomogeneities.
Nan, Guangjun, Zhang, Xu, Abdi‐Jalebi, Mojtaba, Andaji‐Garmaroudi, Zahra, Stranks, Samuel D., Lu, Gang, Beljonne, David   +6 more
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Temperature-Dependent Electrochemical Stability Window of Bis(trifluoromethanesulfonyl)imide and Bis(fluorosulfonyl)imide Anion Based Ionic Liquids

Frontiers in Chemistry, 2022
The electrochemical stability of 22 commercially available hydrophobic ionic liquids was measured at different temperatures (288.15, 298.15, 313.15, 333.15 and 358.15 K), to systematically investigate ionic liquids towards electrolytes for ...
Kallidanthiyil Chellappan Lethesh, Ahmed Bahaa, Mariam Abdullah, Musbaudeen O. Bamgbopa, Rahmat Agung Susantyoko   +4 more
doaj   +1 more source

Real-Time Observation of Organic Cation Reorientation in Methylammonium Lead Iodide Perovskites [PDF]

The Journal of Physical Chemistry Letters, 2015
The introduction of a mobile and polarized organic moiety as a cation in 3D lead-iodide perovskites brings fascinating optoelectronic properties to these materials. The extent and the time scales of the orientational mobility of the organic cation and the molecular mechanism behind its motion remain unclear, with different experimental and ...
Bakulin, AA, Selig, O, Bakker, HJ, Rezus, YLA, Mueller, C, Glaser, T, Lovrincic, R, Sun, Z, Chen, Z, Walsh, A, Frost, JM, Jansen, TLC   +11 more
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Preparação e propriedades de zeólitas faujasita contendo cátions amônio Preparation and properties of faujasite zeolites containing ammonium cations

Química Nova, 2010
Sodium faujasite zeolites with Si/Al ratio of 1.4 and 2.5 were exchanged with methylammonium cations. The influence of framework aluminum and ion exchange degree in their basic properties were evaluated.
Karina Arruda Almeida, Leandro Martins e Dilson Cardoso   +1 more
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Methylammonium Cation Dynamics in Methylammonium Lead Halide Perovskites: A Solid-State NMR Perspective

The Journal of Physical Chemistry A, 2018
In light of the intense recent interest in the methylammonium lead halides, CH3NH3PbX3 (X = Cl, Br, and I) as sensitizers for photovoltaic cells, the dynamics of the methylammonium (MA) cation in these perovskite salts has been reinvestigated as a function of temperature via 2H, 14N, and 207Pb NMR spectroscopy.
Guy M. Bernard, Roderick E. Wasylishen, Christopher I. Ratcliffe, Victor Terskikh, Qichao Wu, Jillian M. Buriak, Tate Hauger   +6 more
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Organic Cation Rotation and Immobilization in Pure and Mixed Methylammonium Lead-Halide Perovskites [PDF]

Journal of the American Chemical Society, 2017
Three-dimensional lead-halide perovskites have attracted a lot of attention due to their ability to combine solution processing with outstanding optoelectronic properties. Despite their soft ionic nature these materials demonstrate a surprisingly low level of electronic disorder resulting in sharp band edges and narrow distributions of the electronic ...
Oleg Selig, Aditya Sadhanala, Christian Müller, Robert Lovrincic, Zhuoying Chen, Yves L. A. Rezus, Jarvist M. Frost, Thomas L. C. Jansen, Artem A. Bakulin   +8 more
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Bis(methylammonium) tetrasulfidotungstate(VI)

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, Christian Näther, Bikshandarkoil R. Srinivasan   +2 more
doaj   +1 more source

Thermally-induced drift of A-site cations at solid–solid interface in physically paired lead halide perovskites

Scientific Reports, 2022
The promise of hybrid organic–inorganic halide perovskite solar cells rests on their exceptional power conversion efficiency routinely exceeding 25% in laboratory scale devices.
Daniele T. Cuzzupè, Feray Ünlü, Khan Lê, Robin Bernhardt, Michael Wilhelm, Matthias Grosch, Rene Weißing, Thomas Fischer, Paul H. M. van Loosdrecht, Sanjay Mathur   +9 more
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Hybrid Organic–Inorganic Perovskite Superstructures for Ultrapure Green Emissions

Nanomaterials, 2023
All inorganic CsPbBr3 superstructures (SSs) have attracted much research interest due to their unique photophysical properties, such as their large emission red-shifts and super-radiant burst emissions.
Wen Kiat Chan, Jiawei Chen, Donglei Zhou, Junzhi Ye, Ricardo Javier Vázquez, Cheng Zhou, Guillermo Carlos Bazan, Akshay Rao, Zhongzheng Yu, Timothy Thatt Yang Tan   +9 more
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