| People | Locations | Statistics |
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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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Liu, Maning
Lund University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Lattice Engineering via Transition Metal Ions for Boosting Photoluminescence Quantum Yields of Lead-Free Layered Double Perovskite Nanocrystalscitations
- 2024Lattice Engineering via Transition Metal Ions for Boosting Photoluminescence Quantum Yields of Lead-Free Layered Double Perovskite Nanocrystalscitations
- 2024Lattice Engineering via Transition Metal Ions for Boosting Photoluminescence Quantum Yields of Lead-Free Layered Double Perovskite Nanocrystalscitations
- 2024Probing compositional engineering effects on lead-free perovskite-inspired nanocrystal thin films using correlative nonlinear optical microscopycitations
- 2024Halide Perovskites for Photoelectrochemical Water Splitting and CO2 Reductioncitations
- 2024Halide Engineering in Mixed Halide Perovskite-Inspired Cu2AgBiI6 for Solar Cells with Enhanced Performancecitations
- 2024Probing compositional engineering effects on lead-free perovskiteinspired nanocrystal thin films using correlative nonlinear optical microscopycitations
- 2023Introduction
- 2023Water-resistant perovskite-inspired copper/silver pnictohalide nanocrystals for photoelectrochemical water splittingcitations
- 2023Water-resistant perovskite-inspired copper/silver pnictohalide nanocrystals for photoelectrochemical water splittingcitations
- 2023Antimony-Bismuth Alloying : The Key to a Major Boost in the Efficiency of Lead-Free Perovskite-Inspired Photovoltaicscitations
- 2023Triple A-Site Cation Mixing in 2D Perovskite-Inspired Antimony Halide Absorbers for Efficient Indoor Photovoltaicscitations
- 2023Triple A-Site Cation Mixing in 2D Perovskite-Inspired Antimony Halide Absorbers for Efficient Indoor Photovoltaicscitations
- 2023Antimony‐Bismuth Alloying: The Key to a Major Boost in the Efficiency of Lead‐Free Perovskite‐Inspired Photovoltaicscitations
- 2023Antimony-Bismuth Alloyingcitations
- 2022Tantalum Oxide as an Efficient Alternative Electron Transporting Layer for Perovskite Solar Cellscitations
- 2022Photo-Induced Charge Carrier Dynamics of Metal Halide Perovskite
- 2022Flexible Organic Photovoltaics with Star-Shaped Nonfullerene Acceptors End Capped with Indene Malononitrile and Barbiturate Derivativescitations
- 2021Tuning halide perovskite energy levelscitations
- 2021Tuning halide perovskite energy levelscitations
- 2020Tuning halide perovskite energy levelscitations
- 2020The Performance-Determining Role of Lewis Bases in Dye-Sensitized Solar Cells Employing Copper-Bisphenanthroline Redox Mediatorscitations
- 2020Investigation of well-defined pinholes in TiO 2 electron selective layers used in planar heterojunction perovskite solar cellscitations
- 2020Investigation of well-defined pinholes in TiO2 electron selective layers used in planar heterojunction perovskite solar cellscitations
- 2019Nano-structured TiO2 grown by low-temperature reactive sputtering for planar perovskite solar cellscitations
- 2018Identifying an Optimum Perovskite Solar Cell Structure by Kinetic Analysiscitations
- 2018Excitation wavelength dependent interfacial charge transfer dynamics in a CH3NH3PbI3 perovskite filmcitations
- 2017Fluorene-Thiophene Copolymer Wire on TiO2citations
Places of action
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article
Identifying an Optimum Perovskite Solar Cell Structure by Kinetic Analysis
Abstract
<p>Perovskite solar cells have rapidly been developed over the past several years. Choice of the most suitable solar cell structure is crucial to improve the performance further. Here, we attempt to determine an optimum cell structure for methylammonium lead iodide (MAPbI<sub>3</sub>) perovskite sandwiched by "<sub>2</sub> and spiro-OMeTAD layers, among planar heterojunction, mesoporous structure, and extremely thin absorber structure, by identifying and comparing charge carrier diffusion coefficients of the perovskite layer, interfacial charge transfer, and recombination rates using transient emission and absorption spectroscopies. An interfacial electron transfer from MAPbI<sub>3</sub> to compact "<sub>2</sub> occurs with a time constant of 160 ns, slower than the perovskite photoluminescence (PL) lifetime (34 ns). In contrast, fast non-exponential electron injection to mesoporous "<sub>2</sub> was observed with at least two different electron injection processes over different time scales; one (60-70%) occurs within an instrument response time of 1.2 ns and the other (30-40%) on nanosecond time scale, while most of hole injection (85%) completes in 1.2 ns. Analysis of the slow charge injection data revealed an electron diffusion coefficient of 0.016 ± 0.004 cm<sup>2</sup> s<sup>-1</sup> and a hole diffusion coefficient of 0.2 ± 0.02 cm<sup>2</sup> s<sup>-1</sup> inside MAPbI<sub>3</sub>. To achieve an incident photon-to-current conversion efficiency of >80%, a minimum charge carrier diffusion coefficient of 0.08 cm<sup>2</sup> s<sup>-1</sup> was evaluated. An interfacial charge recombination lifetime was increased from 0.5 to 40 ms by increasing a perovskite layer thickness, suggesting that the perovskite layer suppresses charge recombination reactions. Assessments of charge injection and interfacial charge recombination processes indicate that the optimum solar cell structure for the MAPbI<sub>3</sub> perovskite is a mesoporous "<sub>2</sub> based structure. This comparison of kinetics has been applied to several different types of photoactive semiconductors such as perovskite, CdTe, and GaAs, and the most appropriate solar cell structure was identified.</p>