We introduce a thin LiF layer into tris-8-hydroxyquinoline aluminium （Alq3 ） based bilayer organic light-emitting devices to block hole transport. By varying the thickness and position of this LiF layer in Alq3, we ...We introduce a thin LiF layer into tris-8-hydroxyquinoline aluminium （Alq3 ） based bilayer organic light-emitting devices to block hole transport. By varying the thickness and position of this LiF layer in Alq3, we obtain an electroluminescent efficiency increase by a factor of two with respect to the control devices without a LiF blocking layer. By using a 10nm dye doped Alq3 sensor layer, we prove that LiF can block holes and excitons effectively. Experimental results suggest that the thin LiF layer may be a good hole and exciton blocking layer.展开更多
Ladies and Gentlemen,Dear friends,I’m delighted to attend the roundtable discussion jointly held by the Chinese Association for International Understanding (CAFIU) and Jean Jaurès Foundation of France,and have e...Ladies and Gentlemen,Dear friends,I’m delighted to attend the roundtable discussion jointly held by the Chinese Association for International Understanding (CAFIU) and Jean Jaurès Foundation of France,and have exchanges with you in person who have been supportive展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 10504044, and the Fok Ying Tung Education Foundation under Grant No 101007.
文摘We introduce a thin LiF layer into tris-8-hydroxyquinoline aluminium （Alq3 ） based bilayer organic light-emitting devices to block hole transport. By varying the thickness and position of this LiF layer in Alq3, we obtain an electroluminescent efficiency increase by a factor of two with respect to the control devices without a LiF blocking layer. By using a 10nm dye doped Alq3 sensor layer, we prove that LiF can block holes and excitons effectively. Experimental results suggest that the thin LiF layer may be a good hole and exciton blocking layer.
文摘Ladies and Gentlemen,Dear friends,I’m delighted to attend the roundtable discussion jointly held by the Chinese Association for International Understanding (CAFIU) and Jean Jaurès Foundation of France,and have exchanges with you in person who have been supportive
