Encapsulated triplet–triplet annihilation-based upconversion in the aqueous phase for sub-band-gap semiconductor photocatalysis
We herein report the first instance of aqueous-phase photosensitization of semiconductor
photocatalysts (WO3 loaded with Pt) through triplet–triplet annihilation (TTA)-based
upconversion of sub-band-gap photons. The TTA-based upconversion (UC) was achieved
in the aqueous phase by encapsulating the solvent phase containing a benchmark platinum
(II) octaethylporphyrin/9, 10-diphenylanthracene sensitizer/acceptor pair in a rigid polymer
shell in the form of aqueous dispersible microcapsules. A mixture of hexadecane and …
photocatalysts (WO3 loaded with Pt) through triplet–triplet annihilation (TTA)-based
upconversion of sub-band-gap photons. The TTA-based upconversion (UC) was achieved
in the aqueous phase by encapsulating the solvent phase containing a benchmark platinum
(II) octaethylporphyrin/9, 10-diphenylanthracene sensitizer/acceptor pair in a rigid polymer
shell in the form of aqueous dispersible microcapsules. A mixture of hexadecane and …
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