Poly(ethylene imine) Impurities Induce n‐doping Reaction in Organic (Semi)Conductors. (16th July 2014)

• Record Type: Journal Article
• Authors: Fabiano, Simone; Braun, Slawomir; Liu, Xianjie; Weverberghs, Eric; Gerbaux, Pascal; Fahlman, Mats; Berggren, Magnus; Crispin, Xavier
• Is Part Of: Advanced materials. Volume 26:Number 34(2014)
• Page Start: 6000
• Page End: 6006
• Publication Date: 2014-07-16
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201401986
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201401986-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Volatile impurities</bold> contained in polyethyleneimine (PEI), and identified as ethyleneimine dimers and trimers, are reported. These N‐based molecules show a strong reducing character, as demonstrated by the change in electrical conductivity of organic (semi)conductors exposed to the PEI vapor. The results prove that electron transfer rather than a dipole effect at the electrode interface is the origin of the work‐function modification by the PEI‐based layers. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh177b4rdm" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>