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Identifying Triplet-Triplet Annihilation Upconversion Loss Mechanisms Using Transient Absorption and Photoluminescence Spectroscopy

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Identifying Triplet-Triplet Annihilation Upconversion Loss Mechanisms Using Transient Absorption and Photoluminescence Spectroscopy

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  • Author: Georgios Arvanitkis
The extensive deployment of fossil fuels has led to paramount environmental issues that require immediate and practical solutions to create a greener environment. Solar energy harvesting has been the focus of research into renewable energy. It is crucial to develop more efficient systems for solar energy conversion, such as solar cells and photocatalysts. Triplet-triplet annihilation photon upconversion (TTA-UC) is a method to convert low into high-energy photons. This method can be beneficial in cases where a visible light reaction rate is low due to shallow light absorption, and the more considerable penetrating ability of low energetic IR photons can improve photocatalyst excitation.

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