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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Docampo, Pablo
Newcastle University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Untangling free carrier and exciton dynamics in layered hybrid perovskites using ultrafast optical and terahertz spectroscopycitations
- 2024The balancing act between high electronic and low ionic transport influenced by perovskite grain boundariescitations
- 2023Untangling free carrier and exciton dynamics in layered hybrid perovskites using ultrafast optical and terahertz spectroscopycitations
- 2022Structure–property investigations in urea tethered iodinated triphenylaminescitations
- 2020A general approach for hysteresis-free, operationally stable metal halide perovskite field-effect transistors.
- 2020A general approach for hysteresis-free, operationally stable metal halide perovskite field-effect transistors.
- 2019Shedding Light on the Moisture Stability of 3D/2D Hybrid Perovskite Heterojunction Thin Filmscitations
- 2018Single-crystal-like optoelectronic-properties of MAPbI3 perovskite polycrystalline thin filmscitations
- 2017Understanding charge transport in lead iodide perovskite thin-film field-effect transistorscitations
- 2016Toward Tailored Film Morphologiescitations
- 2016Hybrid Perovskite/Perovskite Heterojunction Solar Cellscitations
- 2016Synthesis of Perfectly Oriented and Micrometer-Sized MAPbBr(3) Perovskite Crystals for Thin-Film Photovoltaic Applicationscitations
- 2015Reversible Hydration of CH3NH3Pbl3 in Films, Single Crystals, and Solar Cellscitations
- 2015Reversible hydration of CH3NH3PbI3 in films, single crystals, and solar cellscitations
- 2015A Closer Look into Two-Step Perovskite Conversion with X-ray Scatteringcitations
- 2014Bright light-emitting diodes based on organometal halide perovskite.
- 2014Influence of the orientation of methylammonium lead iodide perovskite crystals on solar cell performancecitations
- 2013High-Performance Perovskite-Polymer Hybrid Solar Cells via Electronic Coupling with Fullerene Monolayerscitations
Places of action
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article
Understanding charge transport in lead iodide perovskite thin-film field-effect transistors
Abstract
<p>Fundamental understanding of the charge transport physics of hybrid lead halide perovskite semiconductors is important for advancing their use in high-performance optoelectronics. We use field-effect transistors (FETs) to probe the charge transport mechanism in thin films of methylammonium lead iodide (MAPbI<sub>3</sub>). We show that through optimization of thin-film microstructure and source-drain contact modifications, it is possible to significantly minimize instability and hysteresis in FET characteristics and demonstrate an electron field-effect mobility (m<sub>FET</sub>) of 0.5 cm<sup>2</sup>/Vs at room temperature. Temperature-dependent transport studies revealed a negative coefficient of mobility with three different temperature regimes. On the basis of electrical and spectroscopic studies, we attribute the three different regimes to transport limited by ion migration due to point defects associated with grain boundaries, polarization disorder of the MA<sup>+</sup> cations, and thermal vibrations of the lead halide inorganic cages.</p>