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Protein Nanofibrils Balance Colours in Organic White-Light-Emitting Diodes
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
2012 (English)In: Israel Journal of Chemistry, ISSN 0021-2148, Vol. 52, no 6, 529-539 p.Article, review/survey (Refereed) Published
Abstract [en]

In this review we discuss our efforts in using protein nanowires (amyloid fibrils) as structural templates for use in organic electronics applications, mainly focusing on organic light-emitting diodes (OLEDs). We discuss different ways of functionalising amyloid fibrils. In one method, the amyloid fibril is used to organise luminescent polymers. We also discuss an alternative preparative method, resulting in amyloid-like materials functionalised with phosphorescent organometallic complexes. We discuss the incorporation of such materials in organic electronics devices, such as OLEDs. When amyloid fibrils are integrated into the OLED active layer, consisting of an electroluminescent blue-emitting polyfluorene, the efficiency of the device increases by a factor of 10. Furthermore, when amyloid fibrils incorporating phosphorescent metal complexes are used, the phosphorescent guest functions more efficiently than in the corresponding case where naked metal complexes are used. By preparing amyloid fibrils incorporating green- and red-emitting phosphorescent complexes, and combining these with blue-emitting polyfluorene, we can fabricate devices for white-light emission. The origin of the effects of the biomaterial on device performance is discussed.

Place, publisher, year, edition, pages
Wiley-VCH Verlag Berlin , 2012. Vol. 52, no 6, 529-539 p.
Keyword [en]
proteins; self-assembly; organic light-emitting diodes; polymers; phosphorescence
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-79814DOI: 10.1002/ijch.201100113ISI: 000305509300006OAI: oai:DiVA.org:liu-79814DiVA: diva2:544967
Available from: 2012-08-17 Created: 2012-08-14 Last updated: 2017-12-07

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Solin, NiclasInganäs, Olle

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