Poly(ethylene imine) impurities induce n-doping reaction in organic (semi)conductors
2014 (English)In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 26, no 34, 6000-6006 p.Article in journal (Refereed) Published
Volatile impurities 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.
Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2014. Vol. 26, no 34, 6000-6006 p.
Electrical Engineering, Electronic Engineering, Information Engineering Physical Sciences
IdentifiersURN: urn:nbn:se:liu:diva-111452DOI: 10.1002/adma.201401986ISI: 000342147400013PubMedID: 25043202OAI: oai:DiVA.org:liu-111452DiVA: diva2:757266
Funding Agencies|Advanced Functional Materials Center at Linkoping University; Onnesjo Foundation; Knut and Alice Wallenberg Foundation; VINNOVA; STEM; Swedish Energy Agency; FRS-FNRS2014-10-212014-10-172015-05-06Bibliographically approved