| http://www.w3.org/ns/prov#value | - Conversely, when the positive electrode 120 is made of at least one of silver (Ag), rhodium (Rh), ruthenium (Ru), platinum (Pt), palladium (Pd), and an alloy including at least one of these metals, a large luminous intensity can be obtained in case that the first or the second thin-film metal layer 111 or 112 is not existed, as understood comparing item number 3 with item numbers 4 and 8 of FIG. 3
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