Results 41 to 50 of about 3,584 (216)

Understanding the interplay of stability and efficiency in A-site engineered lead halide perovskites

open access: yesAPL Materials, 2020
Organic–inorganic hybrid lead halide perovskites have gained significant attention as light-harvesting materials in thin-film photovoltaics due to their exceptional optoelectronic properties and simple fabrication process. The power conversion efficiency
Feray Ünlü   +9 more
doaj   +1 more source

Using Imidazolium in the Construction of Hybrid 2D and 3D Lead Bromide Pseudoperovskites

open access: yesChemistry, 2023
The field of hybrid organic–inorganic perovskite materials continues to attract the interest of the scientific community due to their fascinating properties and the plethora of promising applications in photovoltaic and optoelectronic devices. To enhance
Gonzalo García-Espejo   +3 more
doaj   +1 more source

The permeation properties of small organic cations in gramicidin A channels [PDF]

open access: yes, 1993
The conductance properties of organic cations in single gramicidin A channels were studied using planar lipid bilayers. From measurements at 10 mM and at 27 mV the overall selectivity sequence was found to be NH4+ > K+ > hydrazinium > formamidinium > Na+
Busath, D., Seoh, S.A.
core   +1 more source

Resolving Mixed Intermediate Phases in Methylammonium-Free Sn–Pb Alloyed Perovskites for High-Performance Solar Cells

open access: yesNano-Micro Letters, 2022
The complete elimination of methylammonium (MA) cations in Sn–Pb composites can extend their light and thermal stabilities. Unfortunately, MA-free Sn–Pb alloyed perovskite thin films suffer from wrinkled surfaces and poor crystallization, due to the ...
Zhanfei Zhang   +8 more
doaj   +1 more source

Recent Advances on the Strategies to Stabilize the α-Phase of Formamidinium Based Perovskite Materials

open access: yesCrystals, 2022
Perovskite solar cells (PSC) are considered promising next generation photovoltaic devices due to their low cost and high-power conversion efficiency (PCE).
Hongmei Zhao   +7 more
doaj   +1 more source

Theoretical investigation of the role of the organic cation in methylammonium lead iodide perovskite

open access: yesThe European Physical Journal B, 2023
This research is a theoretical study in condensed matter physics.
openaire   +3 more sources

Experimental evidence of the anti-parallel arrangement of methylammonium ions in perovskites [PDF]

open access: yes, 2016
International audienceOrientation arrangement of methylammonium ions in hybrid organic inorganic perovskite is still under debate because their tendency for alignment is expected to give rise to either ferroelectric or anti-ferroelectric behavior, which ...
Bassani, Dario M.   +7 more
core   +1 more source

Structural and electronic properties of hybrid perovskites for high-efficiency thin-film photovoltaics from first-principles

open access: yesAPL Materials, 2013
The performance of perovskite solar cells recently exceeded 15% solar-to-electricity conversion efficiency for small-area devices. The fundamental properties of the active absorber layers, hybrid organic-inorganic perovskites formed from mixing metal and
Federico Brivio   +2 more
doaj   +1 more source

Improving Photovoltaic Performance of Hybrid Organic-Inorganic MAGeI3 Perovskite Solar Cells via Numerical Optimization of Carrier Transport Materials (HTLs/ETLs)

open access: yesNanomaterials, 2023
In this study, a hybrid organic–inorganic perovskite solar cell (PSC) based on methylammonium germanium triiodide (MAGeI3), which is composed of methylammonium (CH3NH3+) cations and germanium triiodide (GeI3−) anions, has been numerically studied using ...
Tariq AlZoubi   +4 more
doaj   +1 more source

A 3D Lead Iodide Hybrid Based on a 2D Perovskite Subnetwork

open access: yesCrystals, 2021
Lead halide perovskites have emerged as promising materials for various optoelectronic applications. For photovoltaics, the reference compound is the 3D perovskite (MA)PbI3 (MA+ = methylammonium). However, this material suffers from instabilities towards
Maroua Ben Haj Salah   +7 more
doaj   +1 more source

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