Patent 11286420 was granted and assigned to Cambridge Enterprise on March, 2022 by the United States Patent and Trademark Office.
A photon multiplying material containing a luminescent material having organic semiconductor molecules capable of singlet fission attached thereto, wherein the organic semiconductor molecules are chemically attached to the luminescent material by a linking group and wherein the linking group and the band gap of the luminescent material are selected so that exciton triplet states formed by singlet fission in the attached organic semiconductor molecules can be energy transferred into the luminescent material.