Circularly Polarized Phosphorescent Electroluminescence with a High Dissymmetry Factor from PHOLEDs Based on a Platinahelicene.
Circularly polarized (CP) light is of interest in areas such as quantum optical computing, optical spintronics, biomedicine, and high efficiency displays. Direct emission of CP light from organic light-emitting diodes (OLEDs) has been a focus of research as it has the immediate application of increa...
| Publicado en: | Journal of the American Chemical Society Vol. 138; no. 31; pp. 9743 - 9747 |
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| Autores principales: | , , , , |
| Formato: | Artículo |
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American Chemical Society
8/10/2016
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=117950007&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 117950007 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 8/10/2016 vid: 138 iid: 31 pid: 997 pub: American Chemical Society artinfo: ui: 117950007 10.1021/jacs.6b02463 ppf: 9743 ppct: 4 formats: tig: atl: Circularly Polarized Phosphorescent Electroluminescence with a High Dissymmetry Factor from PHOLEDs Based on a Platinahelicene. aug: au: Brandt, Jochen R. Xuhua Wang Ying Yang Campbell, Alasdair J. Fuchter, Matthew J. affil: Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K. Department of Physics, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K. Centre for Plastic Electronics, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K. su: Phosphorescence Electroluminescence Organic light emitting diodes Helicenes Circular polarization Quantum optical phenomena sug: subj: Phosphorescence Electroluminescence Organic light emitting diodes Helicenes Circular polarization Quantum optical phenomena ab: Circularly polarized (CP) light is of interest in areas such as quantum optical computing, optical spintronics, biomedicine, and high efficiency displays. Direct emission of CP light from organic light-emitting diodes (OLEDs) has been a focus of research as it has the immediate application of increasing efficiency and simplifying device architecture in OLED based displays. High dissymmetry (g) factor values have been reported for devices employing fluorescent polymers, but these CP-OLEDs are limited in their ultimate efficiencies by the type of emissive electronic transitions involved. In contrast, phosphorescent OLEDs (PHOLEDs) can emit light from triplet excited states and can therefore achieve very high efficiencies. However, CP-PHOLEDs are significantly understudied, and the two previous reports suffered from very low brightness or g values. Here, we use a platinahelicene complex to construct a CP-PHOLED that achieves both a display level brightness and a high gEL factor. The dissymmetry of CP emission reached with this proof-of-concept single-layer helicene-based device is sufficient to provide real-world benefits over nonpolarized emission and paves the way toward chiral metal complex-based CP-PHOLED display. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2016 holdings: @attributes: islocal: N |
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