Instant Low‐Temperature Cross‐Linking of Poly(N‐vinylcarbazole) for Solution‐Processed Multilayer Blue Phosphorescent Organic Light‐Emitting Devices. (25th September 2014)

• Record Type: Journal Article
• Authors: Aizawa, Naoya; Pu, Yong‐Jin; Chiba, Takayuki; Kawata, So; Sasabe, Hisahiro; Kido, Junji
• Is Part Of: Advanced materials. Volume 26:Number 45(2014)
• Page Start: 7543
• Page End: 7546
• Publication Date: 2014-09-25
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201402726
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201402726-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Poly(<italic>N</italic>‐vinylcarbazole)</bold> undergoes cross‐linking to highly solvent‐resistant films through an oxidative coupling reaction, for which an annealing process takes only 3 min at 110 °C. This reaction allows the construction of a solution‐processed multilayer OLED without a time‐consuming annealing process. The maximum external quantum efficiency reaches 18%, and remains at 17%, even at a high brightness of 10 000 cd m⁻² for all‐solution‐processed blue OLEDs. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh2hmvnwt6" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>