| http://www.w3.org/ns/prov#value | - Here, a material with an electron-transporting property may be a material including a metal complex with a quinoline skeleton or a benzoquinoline skeleton, or the like, such as tris(8-quinolinolato)aluminum (abbr.: Alq3), tris(4-methyl-8-quinolinolato)aluminum (abbr.: Almq3), bis(10-hydroxybenzo[h]-quinolinato)beryllium (abbr.: BeBq2), or bis(2-methyl-8-quinolinolato)-4-phenylphenolato-aluminum (a
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