Results 91 to 100 of about 3,584 (216)

High affinity ammonium transporters (AMT): molecular mechanism of action

open access: yesFrontiers in Plant Science, 2012
The importance of the family of high affinity ammonium transporters is demonstrated by the presence of these proteins in all domains of life, including bacteria, archea, fungi, plants and humans.
Omar ePantoja
doaj   +1 more source

Controlling the Guanidinium Cation Rotation by Cation–π Interactions

open access: yesAngewandte Chemie International Edition, EarlyView.
A lanthanide π‐container has been employed to trap a guanidinium cation inside the aromatic cavity by cation–π interactions. X‐ray crystallography and solid‐state nuclear magnetic resonance (NMR) spectroscopy at fast magic‐angle spinning (MAS) frequencies have been utilized to probe the underlying host–guest interactions.
Hannah Busch   +12 more
wiley   +1 more source

Exploring A‐Site Cation Variations in Dion–Jacobson Two‐Dimensional Halide Perovskites for Enhanced Solar Cell Applications: A Density Functional Theory Study

open access: yesAdvanced Energy & Sustainability Research
The exceptional photophysical and electronic properties of 2D hybrid perovskites possess potential applications in the field of solar energy harvesting.
Hardik L. Kagdada   +6 more
doaj   +1 more source

Carbon Quantum Dots Meet Perovskite Solar Cells: A Review of Multifunctional Synergies

open access: yesCarbon Energy, EarlyView.
This review highlights the multifunctional role of carbon dots in perovskite solar cells. Their applications as additives and interfacial modifiers are discussed in terms of crystallization control, defect passivation, energy‐level alignment, and environmental stability.
Yagmur Su Sayin   +3 more
wiley   +1 more source

The permeability of the cGMP-activated channel to organic cations in retinal rods of the tiger salamander [PDF]

open access: yes, 1993
1. The permeability of the channel activated by guanosine 3',5'‐cyclic monophosphate (cGMP) to many organic monovalent cations was determined by recording macroscopic currents in excised inside‐out patches of plasma membrane from isolated retinal rod ...
Menini, Anna, MENINI A., PICCO C.
core   +1 more source

Balancing structural formability and lattice microstrain in methylammonium-free wide bandgap perovskites

open access: yesJPhys Energy
State-of-the-art wide bandgap perovskite compositions for perovskite/silicon tandem solar cells often incorporate methylammonium (MA) containing multi-cation-mixed-halides compositions to achieve high efficiency.
Wenting Zheng   +8 more
doaj   +1 more source

Structure‐Function Tailoring of Plasmonic Nanomaterials for Thin‐Film Photovoltaics

open access: yesCarbon Energy, EarlyView.
This review discusses the mechanisms and recent advancements of plasmonics in achieving effective light management to enhance the performance of thin‐film solar cells. It highlights applications in high‐performance perovskite solar cells and future‐oriented tandem solar cells.
Sen Jiang   +14 more
wiley   +1 more source

Homogeneous crystallization via sustained solvent-extraction channels for methylammonium-free all-perovskite tandem solar cells

open access: yesNature Communications
Replacing volatile methylammonium (MA+) with formamidinium (FA+) or cesium (Cs+) cations in mixed Pb-Sn perovskite compositions improves thermal resilience.
Yijia Guo   +21 more
doaj   +1 more source

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

open access: yesCarbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood   +16 more
wiley   +1 more source

Elucidation of Chemical Species and Reactivity at Methylammonium Lead Iodide and Cesium Tin Bromide Perovskite Surfaces via Orthogonal Reaction Chemistry [PDF]

open access: yes, 2018
We quantified the chemical species present at and reactivity of the (100) face of tetrahedral single-crystal methylammonium lead iodide, MAPbI3(100), and polycrystalline cesium tin bromide, CsSnBr3.
Alexander D. Carl   +9 more
core   +1 more source

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