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Article: Luminescent zinc(ii) and copper(i) complexes for high-performance solution-processed monochromic and white organic light-emitting devices

TitleLuminescent zinc(ii) and copper(i) complexes for high-performance solution-processed monochromic and white organic light-emitting devices
Authors
Issue Date2015
Citation
Chemical Science, 2015, v. 6, n. 8, p. 4623-4635 How to Cite?
Abstract© The Royal Society of Chemistry. The synthesis and spectroscopic properties of luminescent tetranuclear zinc(ii) complexes of substituted 7-azaindoles and a series of luminescent copper(i) complexes containing 7,8-bis(diphenylphosphino)-7,8-dicarba-nido-undecaborate ligand are described. These complexes are stable towards air and moisture. Thin film samples of the luminescent copper(i) complexes in 2,6-dicarbazolo-1,5-pyridine and zinc(ii) complexes in poly(methyl methacrylate) showed emission quantum yields of up to 0.60 (for Cu-3) and 0.96 (for Zn-1), respectively. Their photophysical properties were examined by ultrafast time-resolved emission spectroscopy, temperature dependent emission lifetime measurements and density functional theory calculations. Monochromic blue and orange solution-processed OLEDs with these Zn(ii) and Cu(i) complexes as light-emitting dopants have been fabricated, respectively. Maximum external quantum efficiency (EQE) of 5.55% and Commission Internationale de l'Eclairage (CIE) coordinates of (0.16, 0.19) were accomplished with the optimized Zn-1-OLED while these values were, respectively 15.64% and (0.48, 0.51) for the optimized Cu-3-OLED. Solution-processed white OLEDs having maximum EQE of 6.88%, CIE coordinates of (0.42, 0.44), and colour rendering index of 81 were fabricated by using these luminescent Zn(ii) and Cu(i) complexes as blue and orange light-emitting dopant materials, respectively.
Persistent Identifierhttp://hdl.handle.net/10722/225905
ISSN
2015 Impact Factor: 9.144
2015 SCImago Journal Rankings: 4.974

 

DC FieldValueLanguage
dc.contributor.authorCheng, Gang-
dc.contributor.authorSo, Gary Kwok Ming-
dc.contributor.authorTo, Wai Pong-
dc.contributor.authorChen, Yong-
dc.contributor.authorKwok, Chi Chung-
dc.contributor.authorMa, Chensheng-
dc.contributor.authorGuan, Xiangguo-
dc.contributor.authorChang, Xiaoyong-
dc.contributor.authorKwok, Wai Ming-
dc.contributor.authorChe, Chi Ming-
dc.date.accessioned2016-05-23T02:22:08Z-
dc.date.available2016-05-23T02:22:08Z-
dc.date.issued2015-
dc.identifier.citationChemical Science, 2015, v. 6, n. 8, p. 4623-4635-
dc.identifier.issn2041-6520-
dc.identifier.urihttp://hdl.handle.net/10722/225905-
dc.description.abstract© The Royal Society of Chemistry. The synthesis and spectroscopic properties of luminescent tetranuclear zinc(ii) complexes of substituted 7-azaindoles and a series of luminescent copper(i) complexes containing 7,8-bis(diphenylphosphino)-7,8-dicarba-nido-undecaborate ligand are described. These complexes are stable towards air and moisture. Thin film samples of the luminescent copper(i) complexes in 2,6-dicarbazolo-1,5-pyridine and zinc(ii) complexes in poly(methyl methacrylate) showed emission quantum yields of up to 0.60 (for Cu-3) and 0.96 (for Zn-1), respectively. Their photophysical properties were examined by ultrafast time-resolved emission spectroscopy, temperature dependent emission lifetime measurements and density functional theory calculations. Monochromic blue and orange solution-processed OLEDs with these Zn(ii) and Cu(i) complexes as light-emitting dopants have been fabricated, respectively. Maximum external quantum efficiency (EQE) of 5.55% and Commission Internationale de l'Eclairage (CIE) coordinates of (0.16, 0.19) were accomplished with the optimized Zn-1-OLED while these values were, respectively 15.64% and (0.48, 0.51) for the optimized Cu-3-OLED. Solution-processed white OLEDs having maximum EQE of 6.88%, CIE coordinates of (0.42, 0.44), and colour rendering index of 81 were fabricated by using these luminescent Zn(ii) and Cu(i) complexes as blue and orange light-emitting dopant materials, respectively.-
dc.languageeng-
dc.relation.ispartofChemical Science-
dc.titleLuminescent zinc(ii) and copper(i) complexes for high-performance solution-processed monochromic and white organic light-emitting devices-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c4sc03161j-
dc.identifier.scopuseid_2-s2.0-84937198883-
dc.identifier.volume6-
dc.identifier.issue8-
dc.identifier.spage4623-
dc.identifier.epage4635-
dc.identifier.eissn2041-6539-

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