PHOTON MULTIPLYING FILM
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United States of America Patent
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Jul 8, 2021
app pub date -
Jun 21, 2019
filing date -
Jun 21, 2019
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Abstract
A photon multiplying film comprises a first organic semiconductor, a luminescer and a light harvesting material wherein the light harvesting material has a bandgap which provides that exciton states formed in the light harvesting material by absorbance of light can be energy transferred to the first organic semiconductor and the luminescer has a bandgap which provides that triplet exciton states formed in the first organic semiconductor can be energy transferred into the luminescer; and wherein at least one of the first organic semiconductor and the light harvesting material is capable of singlet fission.
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