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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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Sadhanala, Aditya
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2021Ligand-engineered bandgap stability in mixed-halide perovskite LEDscitations
- 2020Anisotropy of Charge Transport in a Uniaxially Aligned Fused Electron-Deficient Polymer Processed by Solution Shear Coating.
- 2020Role of Morphology and Förster Resonance Energy Transfer in Ternary Blend Organic Solar Cellscitations
- 2019High-mobility, trap-free charge transport in conjugated polymer diodescitations
- 2019Charge extraction via graded doping of hole transport layers gives highly luminescent and stable metal halide perovskite devices.
- 2019Triple-Cation-Based Perovskite Photocathodes with AZO Protective Layer for Hydrogen Production Applications.
- 2018Electroluminescence from Solution-Processed Pinhole-Free Nanometer-Thickness Layers of Conjugated Polymers.
- 2018Lead-Free Perovskite Semiconductors Based on Germanium-Tin Solid Solutions:Structural and Optoelectronic Propertiescitations
- 2018Dedoping of Lead Halide Perovskites Incorporating Monovalent Cations.
- 2018Lead-Free Perovskite Semiconductors Based on Germanium-Tin Solid Solutionscitations
- 2018Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden–Popper Layered Perovskitescitations
- 2018Direct Bandgap Behavior in Rashba-Type Metal Halide Perovskites.
- 2018Exciton-Phonon Interactions Govern Charge-Transfer-State Dynamics in CdSe/CdTe Two-Dimensional Colloidal Heterostructures.
- 2017Understanding charge transport in lead iodide perovskite thin-film field-effect transistorscitations
- 2017High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives.
- 2017Organic Cation Rotation and Immobilization in Pure and Mixed Methylammonium Lead-Halide Perovskitescitations
- 2017Correlation of Disorder and Charge Transport in a Range of Indacenodithiophene-Based Semiconducting Polymerscitations
- 2016High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additivescitations
- 2016Coulomb Enhanced Charge Transport in Semicrystalline Polymer Semiconductorscitations
- 2016What Controls the Rate of Ultrafast Charge Transfer and Charge Separation Efficiency in Organic Photovoltaic Blends.
- 2015Phosphonic anchoring groups in organic dyes for solid-state solar cellscitations
- 2015Phosphonic anchoring groups in organic dyes for solid-state solar cellscitations
- 2015Overcoming the electroluminescence efficiency limitations of perovskite light-emitting diodes.
- 2015Role of PbSe Structural Stabilization in Photovoltaic Cellscitations
- 2015Hot-carrier cooling and photoinduced refractive index changes in organic-inorganic lead halide perovskites.
- 2015Local Versus Long-Range Diffusion Effects of Photoexcited States on Radiative Recombination in Organic-Inorganic Lead Halide Perovskites.
- 2014Approaching disorder-free transport in high-mobility conjugated polymers.
- 2014Lead-free organic–inorganic tin halide perovskites for photovoltaic applicationscitations
- 2014Bright light-emitting diodes based on organometal halide perovskite.
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>