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Local potential distribution of macrophase separated polymer blend domains

Title data

Alagiriswamy, A. A. ; Jäger, C. ; Haarer, Dietrich ; Thelakkat, Mukundan ; Knoll, Armin ; Krausch, Georg:
Local potential distribution of macrophase separated polymer blend domains.
In: Journal of Physics D. Vol. 40 (2007) Issue 16 . - pp. 4855-4865.
ISSN 1361-6463
DOI: https://doi.org/10.1088/0022-3727/40/16/015

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Local surface potential measurements on alkoxy-substituted poly (p-phenylene ethynylene), poly (EHO-OPPE), as an electron transport material (ETM) and poly (tri-Ph diamine), poly (TPD), as a hole transport material (HTM) and their blends in three different compns. (1: 3, 1: 1, 3: 1) were performed by using scanning Kelvin force microscopy (SKFM). Simultaneously the topog. of all surfaces was obtained using at. force microscopy (AFM). In this paper, we propose a new principle for mapping out the local surface potential distributions of macrophase sepd. segments in the model polymer blend systems through the combined mode of intermittent contact AFM-SKFM techniques. The energetics and kinetics involved are also discussed in terms of potential distributions in the different phases of surface morphologies in the single-layered pristine as well as single-layered two component polymer blend systems. The exptl. results provide considerable insight into the elec./electronic properties of these ETM and HTM materials and reveal highly qual. information for the first time to show a direct conformation of apparent work function difference between the ETM rich and HTM rich components. Finally, an attempt has been made to perform the combined approaches of valuable and high resoln. complementary techniques such as SEM, absorption and photoluminescence spectra in order to correlate the obsd. contact p.d./surface p.d. between the two rich ETM and HTM components obtained from microscopic and macroscopic scans.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Former Professors
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Professorship Experimental Physics IV
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Research Institutions > Collaborative Research Centers, Research Unit > SFB 481 Komplexe Makromolekül- und Hybridsysteme in inneren und äußeren Feldern
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professorship Applied Functional Polymers > Professorship Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professorship Applied Functional Polymers
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 15 Apr 2016 07:20
Last Modified: 21 Jul 2016 09:20
URI: https://eref.uni-bayreuth.de/id/eprint/1313