| 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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Mokhtar, Muhamad Zulhasif
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2021Improving the Efficiency, Stability, and Adhesion of Perovskite Solar Cells Using Nanogel Additive Engineeringcitations
- 2020Using soft polymer template engineering of mesoporous TiO2 scaffolds to increase perovskite grain size and solar cell efficiencycitations
- 2019Air-Stable Methylammonium Lead Iodide Perovskite Thin Films Fabricated via Aerosol-Assisted Chemical Vapor Deposition from a Pseudohalide Pb(SCN)2 Precursorcitations
- 2019Air-Stable Methylammonium Lead Iodide Perovskite Thin Films Fabricated via Aerosol-Assisted Chemical Vapor Deposition from a Pseudohalide Pb(SCN) 2 Precursorcitations
- 2018Using microgels to control the morphology and optoelectronic properties of hybrid organic-inorganic perovskite filmscitations
- 2017Reducing hole transporter use and increasing perovskite solar cell stability with dual-role polystyrene microgel particlescitations
Places of action
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article
Using microgels to control the morphology and optoelectronic properties of hybrid organic-inorganic perovskite films
Abstract
Microgels (MGs) are crosslinked polymer colloid particles that swell in a good solvent. Although MGs have been studied for over 80 years their ability to control the morphology and optoelectronic properties of composite films containing photoactive materials is in its infancy. Solution processable hybrid organic–inorganic perovskites such as CH3NH3PbI3−zClz have attracted enormous fundamental and applied interest because of their outstanding optoelectronic properties. There is considerable interest in establishing methods to control perovskite film morphology, for example, using micropatterning. Here, hydrophilic poly(N-vinylformamide)-based MGs were dispersed in perovskite precursor solution which was then spin coated to deposit CH3NH3PbI3−zClz/MG films for the first time. Remarkably, the CH3NH3PbI3−zClz/MG composites formed disordered inverse opal (DIO) films. The CH3NH3PbI3−zClz/MG composition ranges which gave DIO films are identified using a phase diagram. The pore wall thickness is shown to be controlled by the volume fraction of MGs used and a simple model is presented to explain this behaviour. The MGs not only caused CH3NH3PbI3−zClz to be more efficiently deposited but also increased light absorption and photoluminescence intensity. Demonstration solar cells constructed containing the DIO CH3NH3PbI3−zClz/MG films had an average conversion efficiency of 6.58 ± 0.81%. A mechanism for DIO film formation is discussed. The principles established in this study wherein MGs control the morphology and properties of CH3NH3PbI3−zClz/MG films should also apply to other perovskite/MG composites.