| 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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Hoogland, Sjoerd
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Sequential Co‐Passivation in InAs Colloidal Quantum Dot Solids Enables Efficient Near‐Infrared Photodetectorscitations
- 2022Engineering Electro‐Optic BaTiO<sub>3</sub> Nanocrystals via Efficient Dopingcitations
- 2019Nanostructured Back Reflectors for Efficient Colloidal Quantum-Dot Infrared Optoelectronics
- 2019Lattice anchoring stabilizes solution-processed semiconductorscitations
- 2017Hybrid tandem quantum dot/organic photovoltaic cells with complementary near infrared absorptioncitations
- 2016Ligand-Stabilized Reduced-Dimensionality Perovskitescitations
- 2016Amine-Free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light-Emitting Diodescitations
- 2015Planar-integrated single-crystalline perovskite photodetectorscitations
- 2015Two-Photon Absorption in Organometallic Bromide Perovskitescitations
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article
Two-Photon Absorption in Organometallic Bromide Perovskites
Abstract
Organometallic trihalide perovskites are solution processed semiconductors that have made great strides in third generation thin film light harvesting and light emitting optoelectronic devices. Recently it has been demonstrated that large, high purity single crystals of these perovskites can be synthesized from the solution phase. These crystals’ large dimensions, clean bandgap, and solid-state order, have provided us with a suitable medium to observe and quantify two-photon absorption in perovskites. When CH3NH3PbBr3 single crystals are pumped with intense 800 nm light, we observe band-to-band photoluminescence at 572 nm, indicative of two-photon absorption. We report the nonlinear absorption coefficient of CH3NH3PbBr3 perovskites to be 8.6 cm GW-1 at 800 nm, comparable to epitaxial single crystal semiconductors of similar bandgap. We have leveraged this nonlinear process to electrically autocorrelate a 100 fs pulsed laser using a two-photon perovskite photodetector. This work demonstrates the viability of organometallic trihalide perovskites as a convenient and low-cost nonlinear absorber for applications in ultrafast photonics.