Fast Printing and In Situ Morphology Observation of Organic Photovoltaics Using Slot‐Die Coating. (12th December 2014)

• Record Type: Journal Article
• Authors: Liu, Feng; Ferdous, Sunzida; Schaible, Eric; Hexemer, Alexander; Church, Matthew; Ding, Xiaodong; Wang, Cheng; Russell, Thomas P.
• Is Part Of: Advanced materials. Volume 27:Number 5(2015)
• Page Start: 886
• Page End: 891
• Publication Date: 2014-12-12
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201404040
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201404040-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>The mini‐slot‐die coater</bold> offers a simple, convenient, materials‐efficient route to print bulk‐heterojunction (BHJ) organic photovoltaics (OPVs) that show efficiencies similar to spin‐coating. Grazing‐incidence X‐ray diffraction (GIXD) and GI small‐angle X‐ray scattering (GISAXS) methods are used in real time to characterize the active‐layer formation during printing. A polymer‐aggregation–phase‐separation–crystallization mechanism for the evolution of the morphology describes the observations. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh3pgk6z18" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>