Step change in upconversion the key to clean water, green energy and futuristic medicine

📆 9/18/2023 7:38 PM
📰 physorg_com

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Achieving photochemical upconversion in a solid state is a step closer to reality, thanks to a new technique that could unlock vital innovations in renewable energy, water purification and advanced health care.

The technical term for the gluing process is"triplet-triplet annihilation," which produces a"singlet exciton." An exciton is a quasiparticle which exists when an electron and the hole it is bound to becomes excited by light or another source of energy.

In this work, Exciton Science Research Fellow Dr. Thilini Ishwara and her colleagues created a thin film of nanostructured alumina stained with a sensitizer. The thin film with emitter solution added and encapsulated upconverts lower energy red light to higher energy yellow light. Credit: Exciton Science

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