Tris(8-Hydroxyquinoline) Aluminum/2-(4-Biphenylyl)-5-(4-Tertbutylphenyl)-1,3,3-Oxadiazole Organic Multiple Quantum Wells for Electroluminescent Devices  

Tris(8-Hydroxyquinoline) Aluminum/2-(4-Biphenylyl)-5- (4-Tertbutylphenyl)-1,3,3-Oxadiazole Organic Multiple Quantum Wells for Electroluminescent Devices ①②

作　　者：CHENBaijun HOUJingying 等 

机构地区：[1]StateKeyLab.onIntegratedOptoelectronics,JilinUniversityRegion,Changchun130023,CHN [2]StateKeyLab.onInteg

出　　处：《Semiconductor Photonics and Technology》1998年第3期183-187,共5页半导体光子学与技术（英文版）

摘　　要：Organic multiple quantum wells(OMQWs) consisting of alternating layers of organic materials have been fabricated from tris(8-hydroxyquinoline) aluminum(Alq)and 2-(4-biphenylyl)-5-(4-tertbutylphenyl)-1,3,3-oxadiazole(PBD) by a multisource-type high-vacuum organic molecular deposition.From the small-angle X-ray diffraction patterns of Alq/PBD OMQWs,a periodically layered structure is confirmed through the entire stack.The Alq layer thickness in the OMQWs was varied from 1 nm to 4 nm.From the optical absorption,photoluminescence and electroluminescence measurements,it is found that the exciton energy shifts to higher energy with decreasing Alq layer thickness,The changes of the exciton energy could be interpreted as the confinement effects of exciton in the Alq thin layers.Narrowing of the emission spectrum has also been observed for the electroluminescent devices (ELDs) with the OMQWs structure at room temperature.１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｏｒｇａｎｉｃｓｅｍｉｃｏｎｄｕｃｔｏｒｈｅｔｅｒｏｓｔｒｕｃｔｕｒｅｓａｎｄｍｕｌｔｉｐｌｅｑｕａｎｔｕｍｗｅｌｓ（ＭＱＷｓ）ｓｔｒｕｃｔｕｒｅｓｈａｖｅｂｅｅｎａｓｕｂｊｅｃｔｏｆｉｎｔｅｎｓｅｓｔｕｄｙｉｎｔｈｅｐ...

关 键 词：Organic Electroluminescent Device Organic Multiple Quantum Wells Organic Semiconductor 

分 类 号：TN304.5[电子电信—物理电子学]