The thermodynamics and kinetics of iodine vacancies in the hybrid perovskite methylammonium lead iodide

2018 ◽  
Vol 11 (11) ◽  
pp. 3266-3274 ◽  
Author(s):  
Denis Barboni ◽  
Roger A. De Souza
Keyword(s):  
Ionic Conductivity ◽  
Quantitative Description ◽  
Lead Iodide ◽  
Thermodynamics And Kinetics ◽  
Jump Rate ◽  
Hybrid Perovskite ◽  
Methylammonium Lead Iodide ◽  
Kinetics Of

A quantitative description of the ionic conductivity of MAPbI3 is built on two pillars: knowledge of the iodine-vacancy jump rate and of the density of iodine defects.

scholarly journals Structure and interstitial iodide migration in hybrid perovskite methylammonium lead iodide

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
J. L. Minns ◽  
P. Zajdel ◽  
D. Chernyshov ◽  
W. van Beek ◽  
M. A. Green
Keyword(s):  
Lead Iodide ◽  
Hybrid Perovskite ◽  
Methylammonium Lead Iodide

scholarly journals Chemical engineering of methylammonium lead iodide/bromide perovskites: tuning of opto-electronic properties and photovoltaic performance

2015 ◽  
Vol 3 (43) ◽  
pp. 21760-21771 ◽  
Author(s):  
Byung-wook Park ◽  
Bertrand Philippe ◽  
Sagar M. Jain ◽  
Xiaoliang Zhang ◽  
Tomas Edvinsson ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Chemical Engineering ◽  
Photovoltaic Performance ◽  
Lead Iodide ◽  
Hybrid Perovskite ◽  
Lead Source ◽  
Methylammonium Lead Iodide

A convenient 1-step spincoating method for the hybrid perovskite MAPb(I1−xBrx)3(Cl)y, with PbCl2 as lead source, enables tuning of the bandgap.

scholarly journals An Emerging Visible-Light Organic–Inorganic Hybrid Perovskite for Photocatalytic Applications

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 115 ◽  
Author(s):  
Bianca-Maria Bresolin ◽  
Samia Ben Hammouda ◽  
Mika Sillanpää
Keyword(s):  
Visible Light ◽  
The Novel ◽  
Lead Iodide ◽  
Photo Degradation ◽  
Visible Light Photocatalyst ◽  
Hybrid Perovskite ◽  
Light Activity ◽  
Visible Light Active ◽  
Methylammonium Lead Iodide ◽  
Photocatalytic Applications

The development of visible-light active photocatalysts is a current challenge especially energy and environmental-related fields. Herein, methylammonium lead iodide perovskite (MAIPb) was chosen as the novel semiconductor material for its ability of absorbing visible-light. An easily reproducible and efficient method was employed to synthesize the as-mentioned material. The sample was characterized by various techniques and has been used as visible-light photocatalyst for degradation of two model pollutants: rhodamine B (RhB) and methylene-blue (MB). The photo-degradation of RhB was found to achieve about 65% after 180 min of treatment. Moreover, the efficiency was enhanced to 100% by assisting the process with a small amount of H2O2. The visible-light activity of the photocatalyst was attributed to its ability to absorb light as well as to enhance separation of photogenerated carriers. The main outcome of the present work is the investigation of a hybrid perovskite as photocatalyst for wastewater treatment.

Coupling of MAPbI3 microcrystals with conductive polyaniline for efficient visible-light-driven H2 evolution

2021 ◽  
Author(s):  
Wenbo Li ◽  
Fang Wang ◽  
Zhengguo Zhang ◽  
Xiaohua Ma ◽  
Shixiong Min
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
Photocatalytic Performance ◽  
H2 Evolution ◽  
Lead Iodide ◽  
Hybrid Perovskite ◽  
Visible Light Driven ◽  
Conductive Polyaniline ◽  
Methylammonium Lead Iodide ◽  
Photocatalytic H2 Evolution

Although methylammonium lead iodide (MAPbI3) hybrid perovskite has shown great potential in photocatalytic H2 evolution, its photocatalytic performance is significantly suppressed due to the insufficient charge separation. Herein, a strongly...

scholarly journals High-pressure behavior of methylammonium lead iodide (MAPbI3) hybrid perovskite

2016 ◽  
Vol 119 (18) ◽  
pp. 185901 ◽  
Author(s):  
Francesco Capitani ◽  
Carlo Marini ◽  
Simone Caramazza ◽  
Paolo Postorino ◽  
Gaston Garbarino ◽  
...  
Keyword(s):  
High Pressure ◽  
Lead Iodide ◽  
Pressure Behavior ◽  
Hybrid Perovskite ◽  
Methylammonium Lead Iodide

Irradiation behavior of pyrolytic silicon carbide

1983 ◽  
Vol 41 ◽  
pp. 72-73
Author(s):  
R. J. Lauf
Keyword(s):  
Silicon Carbide ◽  
Fission Products ◽  
Thermodynamics And Kinetics ◽  
Neutron Fluences ◽  
Fuel Particles ◽  
Sic Coatings ◽  
Irradiation Behavior ◽  
Kinetics Of ◽  
Htgr Fuel

Fuel particles for the High-Temperature Gas-Cooled Reactor (HTGR) contain a layer of pyrolytic silicon carbide to act as a miniature pressure vessel and primary fission product barrier. Optimization of the SiC with respect to fuel performance involves four areas of study: (a) characterization of as-deposited SiC coatings; (b) thermodynamics and kinetics of chemical reactions between SiC and fission products; (c) irradiation behavior of SiC in the absence of fission products; and (d) combined effects of irradiation and fission products. This paper reports the behavior of SiC deposited on inert microspheres and irradiated to fast neutron fluences typical of HTGR fuel at end-of-life.

High-resolution observations of metastable γ’ precipitation in Al-15at.%Ag

1996 ◽  
Vol 54 ◽  
pp. 1004-1005
Author(s):  
N. V. Larcher ◽  
I. G. Solorzano
Keyword(s):  
Discontinuous Precipitation ◽  
Equilibrium Phase ◽  
Quantitative Description ◽  
Present Contribution ◽  
Α Phase ◽  
The Matrix ◽  
Aging Sequence ◽  
Matrix Precipitation ◽  
Considerable Detail ◽  
Kinetics Of

It is currently well established that, for an Al-Ag alloy quenched from the α phase and aged within the metastable solvus, the aging sequence is: supersaturated α → GP zones → γ’ → γ (Ag2Al). While GP zones and plate-shaped γ’ are metastable phases, continuously distributed in the matrix, formation of the equilibrium phase γ takes place at grain boundaries by discontinuous precipitation (DP). The crystal structure of both γ’ and γ is hep with the following orientation relationship with respect to the fee α matrix: {0001}γ′,γ // {111}α, <1120>γ′,γ, // <110>α.The mechanisms and kinetics of continuous matrix precipitation (CMP) in dilute Al-Ag alloys have been studied in considerable detail. The quantitative description of DP kinetics, however, has received less attention. The present contribution reports the microstructural evolution resulting from aging an Al-Ag alloy with Ag content higher than those previously reported in the literature, focusing the observations of γ' plate-shaped metastable precipitates.

Properties of methylammonium lead iodide peerovskite single crystals

2017 ◽  
Vol 58 (8) ◽  
Author(s):  
E. S. Yudanova ◽  
◽  
T. A. Duda ◽  
O. E. Tereshchenko ◽  
O. I. Semenova ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide
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