US 12,071,576 B2
Composition, organic photostimulated luminescent device, luminescent method and method for designing composition for photostimulated luminescence
Ryota Kabe, Okinawa (JP); and Takashi Tachikawa, Kobe (JP)
Assigned to OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION, Okinawa (JP)
Filed by Okinawa Institute of Science and Technology School Corporation, Okinawa (JP)
Filed on Sep. 15, 2021, as Appl. No. 17/475,718.
Claims priority of application No. 2020-154297 (JP), filed on Sep. 15, 2020.
Prior Publication US 2022/0119702 A1, Apr. 21, 2022
Int. Cl. C09K 11/06 (2006.01)
CPC C09K 11/06 (2013.01) 8 Claims
OG exemplary drawing
 
1. A composition comprising an electron donor, an electron acceptor and a third component, wherein:
a combination of the electron donor and the electron acceptor is selected from combinations that exhibit luminescence from an exciplex formed by the electron donor and the electron acceptor with a duration time of 0.1 seconds or longer upon an excitation at 10K,
the third component is selected from materials with capabilities that receive an electron and then release an electron upon a photostimulation and materials with capabilities that receive a hole and then release a hole upon a photostimulation, and
the composition exhibits luminescence from the exciplex upon an excitation.