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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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Tkachenko, Nikolai V.
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Laterally Bound Co Porphyrin on CdTe QD : A Long-Lived Charge-Separated Nanocompositecitations
- 2024Contactless analysis of surface passivation and charge transfer at the TiO 2-Si interfacecitations
- 2024Contactless analysis of surface passivation and charge transfer at the TiO 2-Si interfacecitations
- 2024Transient Absorption Spectroscopy of Filmscitations
- 2024Contactless analysis of surface passivation and charge transfer at the TiO2-Si interfacecitations
- 2023Laterally Bound Co Porphyrin on CdTe QD : A Long-Lived Charge-Separated Nanocompositecitations
- 2023Is Carrier Mobility a Limiting Factor for Charge Transfer in Tio2/Si Devices? A Study by Transient Reflectance Spectroscopycitations
- 2022Tunable Ti3+-Mediated Charge Carrier Dynamics of Atomic Layer Deposition-Grown Amorphous TiO2citations
- 2021Comparison of the heat-treatment effect on carrier dynamics in TiO2 thin films deposited by different methodscitations
- 2020Optimization of photogenerated charge carrier lifetimes in ald grown tio2 for photonic applicationscitations
- 2020Monitoring Charge Carrier Diffusion across a Perovskite Film with Transient Absorption Spectroscopycitations
- 2019Multiphoton Excitation of CsPbBr3 Perovskite Quantum Dots (PQDs) : How Many Electrons Can One PQD Donate to Multiple Molecular Acceptors?citations
- 2019Electronically Coupled Uranium and Iron Oxide Heterojunctions as Efficient Water Oxidation Catalystscitations
- 2019Electronically Coupled Uranium and Iron Oxide Heterojunctions as Efficient Water Oxidation Catalystscitations
- 2019Refractive index change dominates the transient absorption response of metal halide perovskite thin films in the near infraredcitations
- 2018Critical role and modification of surface states in hematite films for enhancing oxygen evolution activitycitations
- 2017Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structurescitations
- 2015Subpicosecond to Second Time-Scale Charge Carrier Kinetics in Hematite-Titania Nanocomposite Photoanodescitations
- 2015Subpicosecond to Second Time-Scale Charge Carrier Kinetics in Hematite-Titania Nanocomposite Photoanodescitations
Places of action
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article
Transient Absorption Spectroscopy of Films
Abstract
<p>Transient absorption spectroscopy is a powerful technique to study the photoinduced phenomena in a wide range of states from solutions to solid film samples. It was designed and developed based on photoinduced absorption changes or that photoexcitation triggers a chain of reactions with intermediate states or reaction steps with presumably different absorption spectra. However, according to general electromagnetic theory, any change in the absorption properties of a medium is accompanied by a change in the refractive properties. Although this photoinduced change in refractive index has a negligible effect on solution measurements, it may significantly affect the measured response of thin films. In this Perspective paper, we examine why and how the measured responses of films differ from their expected “pure” absorption responses. The effect of photoinduced refractive index change can be concluded and studied by comparing the transmitted and reflected probe light responses. Another discussed aspect is the effect of light interference on thin films. Finally, new opportunities of monitoring the photocarrier migration in films and studying nontransparent samples using the reflected probe light response are discussed. Most of the examples provided in this article focus on studies involving perovskite, TiO<sub>2</sub>, and graphene-based films, but the general discussion and conclusions can be applicable to a wide range of semiconductor and thin metallic films.</p>