Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/95479
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Applied Biology and Chemical Technology | en_US |
dc.creator | Ilmi, R | en_US |
dc.creator | Zhang, D | en_US |
dc.creator | Dutra, JDL | en_US |
dc.creator | Dege, N | en_US |
dc.creator | Zhou, L | en_US |
dc.creator | Wong, WY | en_US |
dc.creator | Raithby, PR | en_US |
dc.creator | Khan, MS | en_US |
dc.date.accessioned | 2022-09-19T02:22:12Z | - |
dc.date.available | 2022-09-19T02:22:12Z | - |
dc.identifier.issn | 1566-1199 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/95479 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2021 Elsevier B.V. All rights reserved. | en_US |
dc.rights | © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Ilmi, R., et al. (2021). "A tris β-diketonate europium(III) complex based OLED fabricated by thermal evaporation method displaying efficient bright red emission." Organic Electronics 96: 106216 is available at https://dx.doi.org/10.1016/j.orgel.2021.106216. | en_US |
dc.subject | 2-(2-pyridyl)benzimidazole | en_US |
dc.subject | Electroluminescence | en_US |
dc.subject | Energy transfer mechanism | en_US |
dc.subject | Europium(III) | en_US |
dc.subject | Photoluminescence | en_US |
dc.title | A tris β-diketonate europium(III) complex based OLED fabricated by thermal evaporation method displaying efficient bright red emission | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 96 | en_US |
dc.identifier.doi | 10.1016/j.orgel.2021.106216 | en_US |
dcterms.abstract | A new tris β-diketonate europium(III) complex [Eu(btfa)3Py-Im] (Eu-1) (4,4,4-trifluoro-1-phenyl-1,3-butanedione (btfa) and 2-(2-pyridyl)benzimidazole (Py-Im)] has been synthesized and structurally characterized. A single crystal X-ray diffraction analysis shows that Eu-1 is octacoordinated and the coordination sphere is composed of a EuO6N2 core with a trigonal dodecahedral (D2d) geometry. The photophysical properties of Eu-1 were analysed in detail and with the help of the experimental PL data and theoretical modelling, energy transfer rates were calculated, and an energy transfer mechanism is proposed for Eu-1. The complex has been used as the emitting layer (EML) to fabricate organic light emitting diodes (OLEDs). Eight OLEDs, of which four single-EML and four double-EML with varying doping concentration, were fabricated via a thermal evaporation method using Eu-1 as the EML. Under the optimum conditions a highly monochromatic bright red emission (CIEx,y = 0.640, 0.311) with brightness (B) = 896 cd/m2, current efficiency (ηc) = 2.26 cd/A, power efficiency (ηp) = 1.92 lm/W and external quantum efficiency (EQE) = 1.6% at very low Vturn-on = 3.4 V was obtained. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Organic electronics : physics, materials, applications, Sept. 2021, v. 96, 106216 | en_US |
dcterms.isPartOf | Organic electronics : physics, materials, applications | en_US |
dcterms.issued | 2021-09 | - |
dc.identifier.scopus | 2-s2.0-85108539211 | - |
dc.identifier.eissn | 1878-5530 | en_US |
dc.identifier.artn | 106216 | en_US |
dc.description.validate | 202209 bcww | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ABCT-0052 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | His Majesty’s Trust Fund for Strategic Research; Brazilian funding agencies: CAPES, CNPq,FACEPE and FAPITEC/SE; Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials; Hong Kong Polytechnic University; Endowed Professorship in Energy from Ms Clarea Au; NSFC; outh Innovation Promotion Association of Chinese Academy of Sciences; Engineering and Physical Sciences Research Council (EPSRC) | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 57989037 | - |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Wong_Tris_Diketonate_Complex.pdf | Pre-Published version | 1.93 MB | Adobe PDF | View/Open |
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