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Article: Color stable multilayer all-phosphor white organic light-emitting diodes with excellent color quality

TitleColor stable multilayer all-phosphor white organic light-emitting diodes with excellent color quality
Authors
KeywordsCRI
All-phosphor
Multilayer
WOLED
Stable
Issue Date2013
Citation
Organic Electronics, 2013, v. 14, n. 8, p. 2014-2022 How to Cite?
AbstractThe color stability of all-phosphor white organic light-emitting diodes (WOLEDs) is crucial and remains a challenge that must be overcome before the wide application of phosphor WOLEDs technology. Besides, color stable all-phosphor WOLEDs should also offer high color rendering index (CRI) and ideal correlated color temperature (CCT) simultaneously to make the technology competitive against other alternative technologies such as inorganic LEDs. In this work, we demonstrate a series of color stable all-phosphor WOLEDs with two emitters (blue and yellow), three emitters (blue, green/red, and yellow) and four emitters (blue, green, yellow and red) by introducing tris (phenylpyrazole) Iridium [Ir(ppz)3] as interlayer. The results show that appropriate thickness of Ir(ppz)3 interlayer not only can control exciton distribution in the emission zone, but also can improve the spectra stability. In particular, one efficient four-color device with double-interlayer yields fairly high CRI of 92 and 90, ideal CCT of 3703 K and 3962 K at illumination-relevant luminance of 100 cd m-2 and 1000 cd m -2, respectively, which is very appropriate to indoor lighting application. By further employing appropriate hosts to regulate the carrier injection, ultrahigh stable four-color devices with applicable CRI are finally achieved. © 2013 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/295392
ISSN
2023 Impact Factor: 2.7
2023 SCImago Journal Rankings: 0.648
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Shiming-
dc.contributor.authorYue, Shouzhen-
dc.contributor.authorWu, Qingyang-
dc.contributor.authorZhang, Zhensong-
dc.contributor.authorChen, Yu-
dc.contributor.authorWang, Xuehui-
dc.contributor.authorLiu, Ziyang-
dc.contributor.authorXie, Guohua-
dc.contributor.authorXue, Qin-
dc.contributor.authorQu, Dalong-
dc.contributor.authorZhao, Yi-
dc.contributor.authorLiu, Shiyong-
dc.date.accessioned2021-01-18T15:46:46Z-
dc.date.available2021-01-18T15:46:46Z-
dc.date.issued2013-
dc.identifier.citationOrganic Electronics, 2013, v. 14, n. 8, p. 2014-2022-
dc.identifier.issn1566-1199-
dc.identifier.urihttp://hdl.handle.net/10722/295392-
dc.description.abstractThe color stability of all-phosphor white organic light-emitting diodes (WOLEDs) is crucial and remains a challenge that must be overcome before the wide application of phosphor WOLEDs technology. Besides, color stable all-phosphor WOLEDs should also offer high color rendering index (CRI) and ideal correlated color temperature (CCT) simultaneously to make the technology competitive against other alternative technologies such as inorganic LEDs. In this work, we demonstrate a series of color stable all-phosphor WOLEDs with two emitters (blue and yellow), three emitters (blue, green/red, and yellow) and four emitters (blue, green, yellow and red) by introducing tris (phenylpyrazole) Iridium [Ir(ppz)3] as interlayer. The results show that appropriate thickness of Ir(ppz)3 interlayer not only can control exciton distribution in the emission zone, but also can improve the spectra stability. In particular, one efficient four-color device with double-interlayer yields fairly high CRI of 92 and 90, ideal CCT of 3703 K and 3962 K at illumination-relevant luminance of 100 cd m-2 and 1000 cd m -2, respectively, which is very appropriate to indoor lighting application. By further employing appropriate hosts to regulate the carrier injection, ultrahigh stable four-color devices with applicable CRI are finally achieved. © 2013 Elsevier B.V. All rights reserved.-
dc.languageeng-
dc.relation.ispartofOrganic Electronics-
dc.subjectCRI-
dc.subjectAll-phosphor-
dc.subjectMultilayer-
dc.subjectWOLED-
dc.subjectStable-
dc.titleColor stable multilayer all-phosphor white organic light-emitting diodes with excellent color quality-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.orgel.2013.04.039-
dc.identifier.scopuseid_2-s2.0-84878221035-
dc.identifier.volume14-
dc.identifier.issue8-
dc.identifier.spage2014-
dc.identifier.epage2022-
dc.identifier.isiWOS:000320599200013-
dc.identifier.issnl1566-1199-

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