Results 21 to 30 of about 65,990 (298)

High oxide-ion conductivity through the interstitial oxygen site in Ba7Nb4MoO20-based hexagonal perovskite related oxides

open access: yesNature Communications, 2021
Oxide-ion conductors are important in various applications for clean energy. Here, authors report high oxide-ion conductivity of hexagonal perovskite-related oxide Ba7Nb3.9Mo1.1O20.05, which is ascribed to the interstitialcy diffusion and low activation ...
Masatomo Yashima   +8 more
doaj   +1 more source

Interfacial Morphology Addresses Performance of Perovskite Solar Cells Based on Composite Hole Transporting Materials of Functionalized Reduced Graphene Oxide and P3HT [PDF]

open access: yes, 2018
The development of novel hole transporting materials (HTMs) for perovskite solar cells (PSCs) that can enhance device's reproducibility is a largely pursued goal, even to the detriment of a very high efficiency, since it paves the way to an effective ...
Abdu-Aguye, Mustapha   +12 more
core   +2 more sources

High-pressure/high-temperature synthesis of transition metal oxide perovskites [PDF]

open access: yes, 2006
Perovskite and related Ruddlesden-Popper type transition metal oxides synthesised at high pressures and temperatures during the last decade are reviewed. More than 60 such new materials have been reported since 1995.
Attfield, J. Paul   +2 more
core   +1 more source

Graphene Oxide/Perovskite Interfaces For Photovoltaics [PDF]

open access: yesThe Journal of Physical Chemistry C, 2018
Graphene-based materials hold a promising prospect for their utilization in perovskite solar cell devices as electron-extraction or hole-transport layers. Here, we investigate the role of oxidized graphene when interfaced with the perovskite MAPbI.
Zibouche, N, Volonakis, G, Giustino, F
openaire   +2 more sources

Synergistic effects of nitrogen-doped carbon and praseodymium oxide in electrochemical water splitting

open access: yesScientific Reports, 2023
Hybrid materials featuring perovskite-type metal oxide in conjunction with heteroatom-doped graphene hold immense promise as alternatives to costly noble metal catalysts for electrochemical water splitting, facilitating the generation of environmentally ...
Patrycja Grabowska   +4 more
doaj   +1 more source

Tantalum Oxide as an Efficient Alternative Electron Transporting Layer for Perovskite Solar Cells

open access: yesNanomaterials, 2022
Electron transporting layers facilitating electron extraction and suppressing hole recombination at the cathode are crucial components in any thin-film solar cell geometry, including that of metal–halide perovskite solar cells.
Meenal Deo   +11 more
doaj   +1 more source

Ruddlesden-Popper Phase in Two-Dimensional Inorganic Halide Perovskites: A Plausible Model and the Supporting Observations. [PDF]

open access: yes, 2017
A Ruddlesden-Popper (RP) type structure is well-known in oxide perovskites and is related to many interesting properties such as superconductivity and ferroelectricity.
Yang, Peidong, Yu, Yi, Zhang, Dandan
core   +1 more source

Emerging natural and tailored perovskite-type mixed oxides–based catalysts for CO2 conversions

open access: yesFrontiers in Chemistry, 2022
The rapid economic and societal development have led to unprecedented energy demand and consumption resulting in the harmful emission of pollutants.
Juan Wu   +9 more
doaj   +1 more source

Self-sustainable protonic ceramic electrochemical cells using a triple conducting electrode for hydrogen and power production. [PDF]

open access: yes, 2020
The protonic ceramic electrochemical cell (PCEC) is an emerging and attractive technology that converts energy between power and hydrogen using solid oxide proton conductors at intermediate temperatures.
Bian, Wenjuan   +10 more
core   +1 more source

Synthesis of silicon doped SrMO3 (M=Mn, Co): stabilization of the cubic perovskite and enhancement in conductivity [PDF]

open access: yes, 2011
In this paper we report the successful incorporation of silicon into SrMO3 (M=Co, Mn) leading to a structural change from a hexagonal to a cubic perovskite.
Hancock, C, Slater, Peter.R.
core   +1 more source

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