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Article: Electron injection and electroluminescence investigation of organic light-emitting devices based on a Sn/Al cathode

TitleElectron injection and electroluminescence investigation of organic light-emitting devices based on a Sn/Al cathode
Authors
KeywordsElectron injection
Electroluminescence
Organic light-emitting devices
Issue Date2002
Citation
Synthetic Metals, 2002, v. 126, n. 2-3, p. 347-350 How to Cite?
AbstractOrganic light-emitting devices (OLEDs) with the Sn/Al cathode have been fabricated. The structure of the devices is ITO/CuPc(12 nm)/NPB(60 nm)/Alq3(60 nm)/Sn(2.8 nm)/Al(120 nm). It is found that the presence of a thin tin (Sn) layer at the organic-aluminum (Al) interface can enhance both electron injection efficiency and electroluminescence when compared to OLEDs with only Al cathode. An Ag/Al bilayer cathode structure is also tested, and the similar results can be obtained. The improvement is believed to be due to two factors: (1) the enhancement of the electron density of the Sn or Ag layer; (2) the Sn or Ag layer in part prevents the Al atoms from diffusing into the organic layer. Al/Sn-Alq3-Sn/Al and Al-Alq3-Al devices have also been fabricated. It is shown that the nature of the interface is not equivalent for metal-on-Alq3 and Alq3-on-metal. © 2002 Elsevier Science B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/225841
ISSN
2015 Impact Factor: 2.299
2015 SCImago Journal Rankings: 0.663

 

DC FieldValueLanguage
dc.contributor.authorLi, Feng-
dc.contributor.authorFeng, Jing-
dc.contributor.authorCheng, Gang-
dc.contributor.authorLiu, Shiyong-
dc.date.accessioned2016-05-23T02:21:52Z-
dc.date.available2016-05-23T02:21:52Z-
dc.date.issued2002-
dc.identifier.citationSynthetic Metals, 2002, v. 126, n. 2-3, p. 347-350-
dc.identifier.issn0379-6779-
dc.identifier.urihttp://hdl.handle.net/10722/225841-
dc.description.abstractOrganic light-emitting devices (OLEDs) with the Sn/Al cathode have been fabricated. The structure of the devices is ITO/CuPc(12 nm)/NPB(60 nm)/Alq3(60 nm)/Sn(2.8 nm)/Al(120 nm). It is found that the presence of a thin tin (Sn) layer at the organic-aluminum (Al) interface can enhance both electron injection efficiency and electroluminescence when compared to OLEDs with only Al cathode. An Ag/Al bilayer cathode structure is also tested, and the similar results can be obtained. The improvement is believed to be due to two factors: (1) the enhancement of the electron density of the Sn or Ag layer; (2) the Sn or Ag layer in part prevents the Al atoms from diffusing into the organic layer. Al/Sn-Alq3-Sn/Al and Al-Alq3-Al devices have also been fabricated. It is shown that the nature of the interface is not equivalent for metal-on-Alq3 and Alq3-on-metal. © 2002 Elsevier Science B.V. All rights reserved.-
dc.languageeng-
dc.relation.ispartofSynthetic Metals-
dc.subjectElectron injection-
dc.subjectElectroluminescence-
dc.subjectOrganic light-emitting devices-
dc.titleElectron injection and electroluminescence investigation of organic light-emitting devices based on a Sn/Al cathode-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0379-6779(01)00579-3-
dc.identifier.scopuseid_2-s2.0-0037075034-
dc.identifier.volume126-
dc.identifier.issue2-3-
dc.identifier.spage347-
dc.identifier.epage350-

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