一種具碳烯結構的鉑錯合物,以及使用此鉑錯合物的有機發光二極體。此鉑錯合物之結構包括:一個鉑金屬離子、零價之第一含氮雜環雙牙配基,以及負二價之第二含氮雜環雙牙配基。第一含氮雜環雙牙配基具有至少一個與鉑配位鍵結之碳烯部位。第二含氮雜環雙牙配基具有至少一個拉電子取代基,且與中心的鉑金屬離子形成二個氮-鉑鍵或一個氮-鉑鍵與一個碳-鉑鍵。 A platinum complex having at least one carbene fragment, and an OLED using the same are described. The platinum complex contains a platinum cation, a zero-valent first nitrogen-containing heterocyclic bidentate chelate, and a second, dianionic nitrogen-containing heterocyclic bidentate chelate. The first nitrogen-containing heterocyclic bidentate chelate has at least one carbene unit coordinating to platinum. The second nitrogen-containing heterocyclic bidentate chelate has at least one electron-withdrawing substituent, and forms two N-Pt bonds, or one N-Pt bond and one C-Pt bond, to the central platinum cation. |