title: Photoelectrochemical and Electrochemical Characterization of Sub-Micro-Gram Amounts of Organic Semiconductors Using Scanning Droplet Cell Microscopy.
abstract: A model organic semiconductor (MDMO-PPV) was used for testing a modified version of a photoelectrochemical scanning droplet cell microscope (PE-SDCM) adapted for use with nonaqueous electrolytes and containing an optical fiber for localized illumination. The most attractive features of the PE-SDCM are represented by the possibility of addressing small areas on the investigated substrate and the need of small amounts of electrolyte. A very small amount (ng) of the material under study is sufficient for a complete electrochemical and photoelectrochemical characterization due to the scanning capability of the cell. The electrochemical behavior of the polymer was studied in detail using potentiostatic and potentiodynamic investigations as well as electrochemical impedance spectroscopy. Additionally, the photoelectrochemical properties were investigated under illumination conditions, and the photocurrents found were at least 3 orders of magnitude higher than the dark (background) current, revealing the usefulness of this compact microcell for photovoltaic characterizations.
authors.affiliation: Institute for Chemical Technology of Inorganic Materials, Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, and Christian Doppler Laboratory for Combinatorial Oxide Chemistry at the Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University Linz , Altenberger Str. 69, 4040 Linz, Austria.
authors.forename: Jan Philipp
authors.initials: JP
authors.lastname: Kollender
authors.affiliation: Institute for Chemical Technology of Inorganic Materials, Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, and Christian Doppler Laboratory for Combinatorial Oxide Chemistry at the Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University Linz , Altenberger Str. 69, 4040 Linz, Austria.
authors.forename: Jacek
authors.initials: J
authors.lastname: Gasiorowski
authors.affiliation: Institute for Chemical Technology of Inorganic Materials, Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, and Christian Doppler Laboratory for Combinatorial Oxide Chemistry at the Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University Linz , Altenberger Str. 69, 4040 Linz, Austria.
authors.forename: Niyazi S
authors.initials: NS
authors.lastname: Sariciftci
authors.affiliation: Institute for Chemical Technology of Inorganic Materials, Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, and Christian Doppler Laboratory for Combinatorial Oxide Chemistry at the Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University Linz , Altenberger Str. 69, 4040 Linz, Austria.
authors.forename: Andrei I
authors.initials: AI
authors.lastname: Mardare
authors.affiliation: Institute for Chemical Technology of Inorganic Materials, Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, and Christian Doppler Laboratory for Combinatorial Oxide Chemistry at the Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University Linz , Altenberger Str. 69, 4040 Linz, Austria.
authors.forename: Achim Walter
authors.initials: AW
authors.lastname: Hassel
references.citation: Nanoscale. 2010 Jun;2(6):873-86
references.pmid: 20648282
references.citation: Adv Mater. 2011 May 24;23(20):2367-71
references.pmid: 21462372
references.citation: Nat Chem. 2012 Sep;4(9):699-704
references.pmid: 22914189
references.citation: Electrochim Acta. 2013 Dec 15;113:834-839
references.pmid: 25843970
references.citation: Nat Commun. 2012 Apr 03;3:770
references.pmid: 22473014
references.citation: Adv Mater. 2010 Feb 9;22(6):673-85
references.pmid: 20217769
references.citation: J Phys Chem C Nanomater Interfaces. 2013 Oct 24;117(42):22010-22016
references.pmid: 24175008
references.citation: J Am Chem Soc. 2011 Dec 21;133(50):20009-29
references.pmid: 21999757
references.citation: Phys Chem Chem Phys. 2014 Feb 28;16(8):3739-48
references.pmid: 24424428
references.citation: Anal Chem. 2009 Dec 15;81(24):10262-7
references.pmid: 19911777