| http://www.w3.org/ns/prov#value | - Another aspect of the present invention is a method for collecting a metal from an organic metal compound, including a first step of exposing an EL layer by detaching one in a pair of electrodes included in a light-emitting element from the light-emitting element in which the EL layer containing an organic metal compound which can emit visible light in returning to a singlet ground state from a tr
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